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- 接入 SAM2 视频传播能力：新增 /api/ai/propagate，支持用当前帧 mask/polygon/bbox 作为 seed，通过 SAM2 video predictor 向前、向后或双向传播，并可保存为真实 annotation。 - 接入 SAM3 video tracker：通过独立 Python 3.12 external worker 调用 SAM3 video predictor/tracker，使用本地 checkpoint 与 bbox seed 执行视频级跟踪，并在模型状态中标记 video_track 能力。 - 完善 SAM 模型分发：sam_registry 按 model_id 明确区分 sam2 propagation 与 sam3 video_track，避免两个模型链路混用。 - 打通前端“传播片段”：VideoWorkspace 使用当前选中 mask 和当前 AI 模型调用后端传播接口，传播结果回写并刷新工作区已保存标注。 - 增强 SAM3 本地 checkpoint 配置：新增 sam3_checkpoint_path 配置和 .env.example 示例，状态检查改为基于本地 checkpoint/独立环境/模型包可用性。 - 完善视频拆帧参数：/api/media/parse 支持 parse_fps、max_frames、target_width，后端任务保存帧时间戳、源帧号和 frame_sequence 元数据。 - 增加运行时 schema 兼容处理：启动时为旧 frames 表补充 timestamp_ms 和 source_frame_number 列，避免旧库升级后缺字段。 - 强化 Canvas 标注编辑：补齐多边形闭合、点工具、顶点拖拽、边中点插入、Delete/Backspace 删除、区域合并和重叠去除等交互。 - 增强语义分类联动：选中 mask 后可通过右侧语义分类树更新标签、颜色和 class metadata，并同步到保存/导出链路。 - 增加关键帧时间轴体验：FrameTimeline 显示具体时间信息，并支持键盘左右方向键切换关键帧。 - 完善 AI 交互分割参数：前端保留正向点、反向点、框选和 interactive prompt 的调用状态，支持 SAM2 细化候选区域与 SAM3 bbox 入口。 - 扩展后端/前端 API 类型：新增 propagateMasks、传播请求/响应 schema，并补齐 annotation、导出、模型状态和任务接口的测试覆盖。 - 更新项目文档：同步 README、AGENTS、接口契约、需求冻结、设计冻结、前端元素审计、实施计划和测试计划，标明真实功能边界与剩余风险。 - 增加测试覆盖：补充 SAM2/SAM3 传播、SAM3 状态、媒体拆帧参数、Canvas 编辑、语义标签切换、时间轴、工作区传播和 API 合约测试。 - 加强仓库安全边界：将 sam3权重/ 加入 .gitignore，避免本地模型权重被误提交。 验证：npm run test:run；pytest backend/tests；npm run lint；npm run build；python -m py_compile；git diff --check。
700 lines
27 KiB
Python
700 lines
27 KiB
Python
"""AI inference endpoints using selectable SAM runtimes."""
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import logging
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import tempfile
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from pathlib import Path
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from typing import Any, List
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import cv2
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import numpy as np
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from fastapi import APIRouter, Depends, File, Form, HTTPException, Response, UploadFile, status
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from sqlalchemy.orm import Session
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from database import get_db
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from minio_client import download_file
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from models import Project, Frame, Template, Annotation
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from schemas import (
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AiRuntimeStatus,
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PredictRequest,
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PredictResponse,
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PropagateRequest,
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PropagateResponse,
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AnnotationOut,
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AnnotationCreate,
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AnnotationUpdate,
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)
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from services.sam_registry import ModelUnavailableError, sam_registry
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logger = logging.getLogger(__name__)
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router = APIRouter(prefix="/api/ai", tags=["AI"])
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def _load_frame_image(frame: Frame) -> np.ndarray:
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"""Download a frame from MinIO and decode it to an RGB numpy array."""
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try:
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data = download_file(frame.image_url)
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arr = np.frombuffer(data, dtype=np.uint8)
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img = cv2.imdecode(arr, cv2.IMREAD_COLOR)
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if img is None:
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raise ValueError("OpenCV could not decode image")
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return cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
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except Exception as exc: # noqa: BLE001
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logger.error("Failed to load frame image: %s", exc)
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raise HTTPException(status_code=500, detail="Failed to load frame image") from exc
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def _normalized_contour(contour: np.ndarray, width: int, height: int) -> list[list[float]]:
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"""Approximate a contour and convert it to normalized polygon coordinates."""
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arc_length = cv2.arcLength(contour, True)
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epsilon = max(1.0, arc_length * 0.01)
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approx = cv2.approxPolyDP(contour, epsilon, True)
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points = approx.reshape(-1, 2)
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if len(points) < 3:
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points = contour.reshape(-1, 2)
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return [
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[
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min(max(float(x) / max(width, 1), 0.0), 1.0),
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min(max(float(y) / max(height, 1), 0.0), 1.0),
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]
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for x, y in points
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]
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def _contour_bbox(contour: np.ndarray, width: int, height: int) -> list[float]:
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x, y, w, h = cv2.boundingRect(contour)
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return [
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min(max(float(x) / max(width, 1), 0.0), 1.0),
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min(max(float(y) / max(height, 1), 0.0), 1.0),
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min(max(float(w) / max(width, 1), 0.0), 1.0),
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min(max(float(h) / max(height, 1), 0.0), 1.0),
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]
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def _polygon_bbox(polygon: list[list[float]]) -> list[float]:
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xs = [_clamp01(point[0]) for point in polygon]
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ys = [_clamp01(point[1]) for point in polygon]
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left, right = min(xs), max(xs)
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top, bottom = min(ys), max(ys)
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return [left, top, max(right - left, 0.0), max(bottom - top, 0.0)]
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def _frame_window(
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frames: list[Frame],
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source_position: int,
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direction: str,
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max_frames: int,
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) -> tuple[list[Frame], int]:
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count = max(1, min(max_frames, len(frames)))
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if direction == "backward":
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start = max(0, source_position - count + 1)
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return frames[start:source_position + 1], source_position - start
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if direction == "both":
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before = (count - 1) // 2
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after = count - 1 - before
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start = max(0, source_position - before)
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end = min(len(frames), source_position + after + 1)
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while end - start < count and start > 0:
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start -= 1
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while end - start < count and end < len(frames):
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end += 1
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return frames[start:end], source_position - start
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end = min(len(frames), source_position + count)
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return frames[source_position:end], 0
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def _write_frame_sequence(frames: list[Frame], directory: Path) -> list[str]:
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paths = []
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for index, frame in enumerate(frames):
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data = download_file(frame.image_url)
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path = directory / f"frame_{index:06d}.jpg"
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path.write_bytes(data)
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paths.append(str(path))
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return paths
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def _component_seed_point(component_mask: np.ndarray, width: int, height: int) -> list[float]:
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"""Reduce a binary component to one positive prompt point using distance transform."""
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dist = cv2.distanceTransform(component_mask.astype(np.uint8), cv2.DIST_L2, 5)
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_, _, _, max_loc = cv2.minMaxLoc(dist)
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x, y = max_loc
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return [
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min(max(float(x) / max(width, 1), 0.0), 1.0),
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min(max(float(y) / max(height, 1), 0.0), 1.0),
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]
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def _clamp01(value: float) -> float:
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return min(max(float(value), 0.0), 1.0)
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def _point_in_polygon(point: list[float], polygon: list[list[float]]) -> bool:
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"""Return whether a normalized point is inside a normalized polygon."""
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if len(polygon) < 3:
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return False
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x, y = point
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inside = False
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j = len(polygon) - 1
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for i, current in enumerate(polygon):
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xi, yi = current
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xj, yj = polygon[j]
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intersects = ((yi > y) != (yj > y)) and (
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x < (xj - xi) * (y - yi) / ((yj - yi) or 1e-9) + xi
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)
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if intersects:
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inside = not inside
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j = i
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return inside
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def _crop_bounds_from_points(points: list[list[float]], margin: float) -> tuple[float, float, float, float]:
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xs = [_clamp01(point[0]) for point in points]
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ys = [_clamp01(point[1]) for point in points]
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x1 = max(0.0, min(xs) - margin)
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y1 = max(0.0, min(ys) - margin)
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x2 = min(1.0, max(xs) + margin)
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y2 = min(1.0, max(ys) + margin)
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if x2 - x1 < 0.05:
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center = (x1 + x2) / 2
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x1 = max(0.0, center - 0.025)
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x2 = min(1.0, center + 0.025)
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if y2 - y1 < 0.05:
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center = (y1 + y2) / 2
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y1 = max(0.0, center - 0.025)
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y2 = min(1.0, center + 0.025)
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return x1, y1, x2, y2
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def _crop_image(image: np.ndarray, bounds: tuple[float, float, float, float]) -> np.ndarray:
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height, width = image.shape[:2]
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x1, y1, x2, y2 = bounds
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left = int(round(x1 * width))
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top = int(round(y1 * height))
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right = max(left + 1, int(round(x2 * width)))
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bottom = max(top + 1, int(round(y2 * height)))
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return image[top:bottom, left:right]
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def _to_crop_point(point: list[float], bounds: tuple[float, float, float, float]) -> list[float]:
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x1, y1, x2, y2 = bounds
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return [
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_clamp01((float(point[0]) - x1) / max(x2 - x1, 1e-9)),
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_clamp01((float(point[1]) - y1) / max(y2 - y1, 1e-9)),
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]
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def _from_crop_polygon(
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polygon: list[list[float]],
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bounds: tuple[float, float, float, float],
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) -> list[list[float]]:
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x1, y1, x2, y2 = bounds
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return [
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[
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_clamp01(x1 + float(point[0]) * (x2 - x1)),
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_clamp01(y1 + float(point[1]) * (y2 - y1)),
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]
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for point in polygon
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]
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def _filter_predictions(
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polygons: list[list[list[float]]],
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scores: list[float],
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options: dict[str, Any],
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negative_points: list[list[float]] | None = None,
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) -> tuple[list[list[list[float]]], list[float]]:
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if not options.get("auto_filter_background"):
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return polygons, scores
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min_score = float(options.get("min_score", 0.0) or 0.0)
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next_polygons: list[list[list[float]]] = []
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next_scores: list[float] = []
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for index, polygon in enumerate(polygons):
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score = scores[index] if index < len(scores) else 0.0
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if score < min_score:
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continue
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if negative_points and any(_point_in_polygon(point, polygon) for point in negative_points):
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continue
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next_polygons.append(polygon)
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next_scores.append(score)
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return next_polygons, next_scores
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@router.post(
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"/predict",
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response_model=PredictResponse,
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summary="Run SAM inference with a prompt",
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)
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def predict(payload: PredictRequest, db: Session = Depends(get_db)) -> dict:
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"""Execute selected SAM segmentation given an image and a prompt.
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- **point**: `prompt_data` is either a list of `[[x, y], ...]` normalized
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coordinates or `{ "points": [[x, y], ...], "labels": [1, 0, ...] }`.
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- **box**: `prompt_data` is `[x1, y1, x2, y2]` normalized coordinates.
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- **interactive**: `prompt_data` is `{ "box": [...], "points": [[x, y]], "labels": [1, 0] }`.
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- **semantic**: SAM 3 text prompt when model=`sam3`; SAM 2 falls back to auto.
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"""
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frame = db.query(Frame).filter(Frame.id == payload.image_id).first()
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if not frame:
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raise HTTPException(status_code=404, detail="Frame not found")
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image = _load_frame_image(frame)
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prompt_type = payload.prompt_type.lower()
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options = payload.options or {}
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polygons: List[List[List[float]]] = []
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scores: List[float] = []
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negative_points: list[list[float]] = []
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try:
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if prompt_type == "point":
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point_payload = payload.prompt_data
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if isinstance(point_payload, dict):
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points = point_payload.get("points")
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labels = point_payload.get("labels")
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else:
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points = point_payload
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labels = None
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if not isinstance(points, list) or len(points) == 0:
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raise HTTPException(status_code=400, detail="Invalid point prompt data")
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if not isinstance(labels, list) or len(labels) != len(points):
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labels = [1] * len(points)
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negative_points = [
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point for point, label in zip(points, labels) if label == 0
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]
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inference_image = image
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inference_points = points
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crop_bounds = None
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if options.get("crop_to_prompt"):
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margin = float(options.get("crop_margin", 0.25) or 0.25)
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crop_bounds = _crop_bounds_from_points(points, margin)
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inference_image = _crop_image(image, crop_bounds)
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inference_points = [_to_crop_point(point, crop_bounds) for point in points]
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polygons, scores = sam_registry.predict_points(payload.model, inference_image, inference_points, labels)
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if crop_bounds:
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polygons = [_from_crop_polygon(polygon, crop_bounds) for polygon in polygons]
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elif prompt_type == "box":
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box = payload.prompt_data
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if not isinstance(box, list) or len(box) != 4:
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raise HTTPException(status_code=400, detail="Invalid box prompt data")
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inference_image = image
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inference_box = box
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crop_bounds = None
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if options.get("crop_to_prompt"):
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margin = float(options.get("crop_margin", 0.05) or 0.05)
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crop_bounds = _crop_bounds_from_points([[box[0], box[1]], [box[2], box[3]]], margin)
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inference_image = _crop_image(image, crop_bounds)
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inference_box = [
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*_to_crop_point([box[0], box[1]], crop_bounds),
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*_to_crop_point([box[2], box[3]], crop_bounds),
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]
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polygons, scores = sam_registry.predict_box(payload.model, inference_image, inference_box)
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if crop_bounds:
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polygons = [_from_crop_polygon(polygon, crop_bounds) for polygon in polygons]
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elif prompt_type == "interactive":
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prompt = payload.prompt_data
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if not isinstance(prompt, dict):
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raise HTTPException(status_code=400, detail="Invalid interactive prompt data")
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box = prompt.get("box")
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points = prompt.get("points") or []
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labels = prompt.get("labels")
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if box is not None and (not isinstance(box, list) or len(box) != 4):
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raise HTTPException(status_code=400, detail="Invalid interactive box prompt data")
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if not isinstance(points, list):
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raise HTTPException(status_code=400, detail="Invalid interactive point prompt data")
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if not box and len(points) == 0:
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raise HTTPException(status_code=400, detail="Interactive prompt requires a box or points")
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if not isinstance(labels, list) or len(labels) != len(points):
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labels = [1] * len(points)
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negative_points = [
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point for point, label in zip(points, labels) if label == 0
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]
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inference_image = image
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inference_box = box
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inference_points = points
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crop_bounds = None
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if options.get("crop_to_prompt"):
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margin = float(options.get("crop_margin", 0.05) or 0.05)
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crop_points = list(points)
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if box:
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crop_points.extend([[box[0], box[1]], [box[2], box[3]]])
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crop_bounds = _crop_bounds_from_points(crop_points, margin)
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inference_image = _crop_image(image, crop_bounds)
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inference_points = [_to_crop_point(point, crop_bounds) for point in points]
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if box:
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inference_box = [
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*_to_crop_point([box[0], box[1]], crop_bounds),
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*_to_crop_point([box[2], box[3]], crop_bounds),
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]
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polygons, scores = sam_registry.predict_interactive(
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payload.model,
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inference_image,
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inference_box,
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inference_points,
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labels,
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)
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if crop_bounds:
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polygons = [_from_crop_polygon(polygon, crop_bounds) for polygon in polygons]
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elif prompt_type == "semantic":
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text = payload.prompt_data if isinstance(payload.prompt_data, str) else ""
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polygons, scores = sam_registry.predict_semantic(payload.model, image, text)
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else:
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raise HTTPException(status_code=400, detail=f"Unsupported prompt_type: {prompt_type}")
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except ModelUnavailableError as exc:
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raise HTTPException(status_code=503, detail=str(exc)) from exc
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except NotImplementedError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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polygons, scores = _filter_predictions(polygons, scores, options, negative_points)
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return {"polygons": polygons, "scores": scores}
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@router.get(
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"/models/status",
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response_model=AiRuntimeStatus,
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summary="Get SAM model and GPU runtime status",
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)
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def model_status(selected_model: str | None = None) -> dict:
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"""Return real runtime availability for GPU, SAM 2, and SAM 3."""
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try:
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return sam_registry.runtime_status(selected_model)
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except ValueError as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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@router.post(
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"/propagate",
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response_model=PropagateResponse,
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summary="Propagate one current-frame region across a video frame segment",
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)
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def propagate(payload: PropagateRequest, db: Session = Depends(get_db)) -> dict:
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"""Track one selected region from the current frame across nearby frames.
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SAM 2 uses the official video predictor with the selected mask as the seed.
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SAM 3 uses the external Python 3.12 video tracker with the seed bbox.
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"""
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direction = payload.direction.lower()
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if direction not in {"forward", "backward", "both"}:
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raise HTTPException(status_code=400, detail="direction must be forward, backward, or both")
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max_frames = max(1, min(int(payload.max_frames or 30), 500))
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project = db.query(Project).filter(Project.id == payload.project_id).first()
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if not project:
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raise HTTPException(status_code=404, detail="Project not found")
|
|
|
|
source_frame = db.query(Frame).filter(
|
|
Frame.id == payload.frame_id,
|
|
Frame.project_id == payload.project_id,
|
|
).first()
|
|
if not source_frame:
|
|
raise HTTPException(status_code=404, detail="Frame not found")
|
|
|
|
seed = payload.seed.model_dump(exclude_none=True)
|
|
polygons = seed.get("polygons") or []
|
|
bbox = seed.get("bbox")
|
|
points = seed.get("points") or []
|
|
if not polygons and not bbox and not points:
|
|
raise HTTPException(status_code=400, detail="Propagation requires seed polygons, bbox, or points")
|
|
|
|
frames = db.query(Frame).filter(Frame.project_id == payload.project_id).order_by(Frame.frame_index).all()
|
|
source_position = next((index for index, frame in enumerate(frames) if frame.id == source_frame.id), None)
|
|
if source_position is None:
|
|
raise HTTPException(status_code=404, detail="Source frame is not in project frame sequence")
|
|
|
|
selected_frames, source_relative_index = _frame_window(frames, source_position, direction, max_frames)
|
|
if len(selected_frames) == 0:
|
|
raise HTTPException(status_code=400, detail="No frames available for propagation")
|
|
|
|
try:
|
|
with tempfile.TemporaryDirectory(prefix=f"seg_propagate_{payload.project_id}_") as tmpdir:
|
|
frame_paths = _write_frame_sequence(selected_frames, Path(tmpdir))
|
|
propagated = sam_registry.propagate_video(
|
|
payload.model,
|
|
frame_paths,
|
|
source_relative_index,
|
|
seed,
|
|
direction,
|
|
len(selected_frames),
|
|
)
|
|
except ModelUnavailableError as exc:
|
|
raise HTTPException(status_code=503, detail=str(exc)) from exc
|
|
except NotImplementedError as exc:
|
|
raise HTTPException(status_code=400, detail=str(exc)) from exc
|
|
except ValueError as exc:
|
|
raise HTTPException(status_code=400, detail=str(exc)) from exc
|
|
except Exception as exc: # noqa: BLE001
|
|
logger.error("Video propagation failed: %s", exc)
|
|
raise HTTPException(status_code=500, detail=f"Video propagation failed: {exc}") from exc
|
|
|
|
created: list[Annotation] = []
|
|
if payload.save_annotations:
|
|
class_metadata = seed.get("class_metadata")
|
|
template_id = seed.get("template_id")
|
|
label = seed.get("label") or "Propagated Mask"
|
|
color = seed.get("color") or "#06b6d4"
|
|
model_id = sam_registry.normalize_model_id(payload.model)
|
|
|
|
for frame_result in propagated:
|
|
relative_index = int(frame_result.get("frame_index", -1))
|
|
if relative_index < 0 or relative_index >= len(selected_frames):
|
|
continue
|
|
frame = selected_frames[relative_index]
|
|
if not payload.include_source and frame.id == source_frame.id:
|
|
continue
|
|
result_polygons = frame_result.get("polygons") or []
|
|
scores = frame_result.get("scores") or []
|
|
for polygon_index, polygon in enumerate(result_polygons):
|
|
if len(polygon) < 3:
|
|
continue
|
|
annotation = Annotation(
|
|
project_id=payload.project_id,
|
|
frame_id=frame.id,
|
|
template_id=template_id,
|
|
mask_data={
|
|
"polygons": [polygon],
|
|
"label": label,
|
|
"color": color,
|
|
"source": f"{model_id}_propagation",
|
|
"propagated_from_frame_id": source_frame.id,
|
|
"propagated_from_frame_index": source_frame.frame_index,
|
|
"score": scores[polygon_index] if polygon_index < len(scores) else None,
|
|
**({"class": class_metadata} if class_metadata else {}),
|
|
},
|
|
points=None,
|
|
bbox=_polygon_bbox(polygon),
|
|
)
|
|
db.add(annotation)
|
|
created.append(annotation)
|
|
|
|
db.commit()
|
|
for annotation in created:
|
|
db.refresh(annotation)
|
|
|
|
return {
|
|
"model": sam_registry.normalize_model_id(payload.model),
|
|
"direction": direction,
|
|
"source_frame_id": source_frame.id,
|
|
"processed_frame_count": len(selected_frames),
|
|
"created_annotation_count": len(created),
|
|
"annotations": created,
|
|
}
|
|
|
|
|
|
@router.post(
|
|
"/auto",
|
|
response_model=PredictResponse,
|
|
summary="Run automatic segmentation",
|
|
)
|
|
def auto_segment(image_id: int, db: Session = Depends(get_db)) -> dict:
|
|
"""Run automatic mask generation on a frame using a grid of point prompts."""
|
|
frame = db.query(Frame).filter(Frame.id == image_id).first()
|
|
if not frame:
|
|
raise HTTPException(status_code=404, detail="Frame not found")
|
|
|
|
image = _load_frame_image(frame)
|
|
try:
|
|
polygons, scores = sam_registry.predict_auto(None, image)
|
|
except ModelUnavailableError as exc:
|
|
raise HTTPException(status_code=503, detail=str(exc)) from exc
|
|
|
|
return {"polygons": polygons, "scores": scores}
|
|
|
|
|
|
@router.post(
|
|
"/annotate",
|
|
response_model=AnnotationOut,
|
|
status_code=status.HTTP_201_CREATED,
|
|
summary="Save an AI-generated annotation",
|
|
)
|
|
def save_annotation(
|
|
payload: AnnotationCreate,
|
|
db: Session = Depends(get_db),
|
|
) -> Annotation:
|
|
"""Persist an annotation (mask, points, bbox) into the database."""
|
|
project = db.query(Project).filter(Project.id == payload.project_id).first()
|
|
if not project:
|
|
raise HTTPException(status_code=404, detail="Project not found")
|
|
|
|
if payload.frame_id:
|
|
frame = db.query(Frame).filter(Frame.id == payload.frame_id).first()
|
|
if not frame:
|
|
raise HTTPException(status_code=404, detail="Frame not found")
|
|
|
|
annotation = Annotation(**payload.model_dump())
|
|
db.add(annotation)
|
|
db.commit()
|
|
db.refresh(annotation)
|
|
logger.info("Saved annotation id=%s project_id=%s", annotation.id, annotation.project_id)
|
|
return annotation
|
|
|
|
|
|
@router.post(
|
|
"/import-gt-mask",
|
|
response_model=List[AnnotationOut],
|
|
status_code=status.HTTP_201_CREATED,
|
|
summary="Import a GT mask and reduce components to editable point regions",
|
|
)
|
|
async def import_gt_mask(
|
|
project_id: int = Form(...),
|
|
frame_id: int = Form(...),
|
|
template_id: int | None = Form(None),
|
|
label: str = Form("GT Mask"),
|
|
color: str = Form("#22c55e"),
|
|
file: UploadFile = File(...),
|
|
db: Session = Depends(get_db),
|
|
) -> List[Annotation]:
|
|
"""Convert a binary/label mask image into persisted polygon annotations.
|
|
|
|
Each connected component becomes one annotation. The `points` field stores a
|
|
positive seed point at the component's distance-transform center, which gives
|
|
the frontend an editable point-region representation instead of a static
|
|
bitmap layer.
|
|
"""
|
|
project = db.query(Project).filter(Project.id == project_id).first()
|
|
if not project:
|
|
raise HTTPException(status_code=404, detail="Project not found")
|
|
|
|
frame = db.query(Frame).filter(Frame.id == frame_id, Frame.project_id == project_id).first()
|
|
if not frame:
|
|
raise HTTPException(status_code=404, detail="Frame not found")
|
|
|
|
if template_id is not None:
|
|
template = db.query(Template).filter(Template.id == template_id).first()
|
|
if not template:
|
|
raise HTTPException(status_code=404, detail="Template not found")
|
|
|
|
data = await file.read()
|
|
image = cv2.imdecode(np.frombuffer(data, dtype=np.uint8), cv2.IMREAD_GRAYSCALE)
|
|
if image is None:
|
|
raise HTTPException(status_code=400, detail="Invalid mask image")
|
|
|
|
width = int(frame.width or image.shape[1])
|
|
height = int(frame.height or image.shape[0])
|
|
label_values = [int(value) for value in np.unique(image) if int(value) > 0]
|
|
if not label_values:
|
|
raise HTTPException(status_code=400, detail="No foreground mask regions found")
|
|
has_multiple_labels = len(label_values) > 1
|
|
|
|
annotations: list[Annotation] = []
|
|
for label_value in label_values:
|
|
binary = np.where(image == label_value, 255, 0).astype(np.uint8)
|
|
contours, _ = cv2.findContours(binary, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
|
|
annotation_label = f"{label} {label_value}" if has_multiple_labels else label
|
|
|
|
for contour in contours:
|
|
if cv2.contourArea(contour) < 1:
|
|
continue
|
|
|
|
polygon = _normalized_contour(contour, image.shape[1], image.shape[0])
|
|
if len(polygon) < 3:
|
|
continue
|
|
|
|
component = np.zeros_like(binary, dtype=np.uint8)
|
|
cv2.drawContours(component, [contour], -1, 1, thickness=-1)
|
|
seed_point = _component_seed_point(component, image.shape[1], image.shape[0])
|
|
bbox = _contour_bbox(contour, image.shape[1], image.shape[0])
|
|
|
|
annotation = Annotation(
|
|
project_id=project_id,
|
|
frame_id=frame_id,
|
|
template_id=template_id,
|
|
mask_data={
|
|
"polygons": [polygon],
|
|
"label": annotation_label,
|
|
"color": color,
|
|
"source": "gt_mask",
|
|
"gt_label_value": label_value,
|
|
"image_size": {"width": width, "height": height},
|
|
},
|
|
points=[seed_point],
|
|
bbox=bbox,
|
|
)
|
|
db.add(annotation)
|
|
annotations.append(annotation)
|
|
|
|
if not annotations:
|
|
raise HTTPException(status_code=400, detail="No foreground mask regions found")
|
|
|
|
db.commit()
|
|
for annotation in annotations:
|
|
db.refresh(annotation)
|
|
logger.info("Imported %s GT mask annotations for project_id=%s frame_id=%s", len(annotations), project_id, frame_id)
|
|
return annotations
|
|
|
|
|
|
@router.get(
|
|
"/annotations",
|
|
response_model=List[AnnotationOut],
|
|
summary="List saved annotations for a project",
|
|
)
|
|
def list_annotations(
|
|
project_id: int,
|
|
frame_id: int | None = None,
|
|
db: Session = Depends(get_db),
|
|
) -> List[Annotation]:
|
|
"""Return persisted annotations for a project, optionally scoped to one frame."""
|
|
project = db.query(Project).filter(Project.id == project_id).first()
|
|
if not project:
|
|
raise HTTPException(status_code=404, detail="Project not found")
|
|
|
|
query = db.query(Annotation).filter(Annotation.project_id == project_id)
|
|
if frame_id is not None:
|
|
query = query.filter(Annotation.frame_id == frame_id)
|
|
return query.order_by(Annotation.id).all()
|
|
|
|
|
|
@router.patch(
|
|
"/annotations/{annotation_id}",
|
|
response_model=AnnotationOut,
|
|
summary="Update a saved annotation",
|
|
)
|
|
def update_annotation(
|
|
annotation_id: int,
|
|
payload: AnnotationUpdate,
|
|
db: Session = Depends(get_db),
|
|
) -> Annotation:
|
|
"""Update mutable annotation fields persisted in the database."""
|
|
annotation = db.query(Annotation).filter(Annotation.id == annotation_id).first()
|
|
if not annotation:
|
|
raise HTTPException(status_code=404, detail="Annotation not found")
|
|
|
|
updates = payload.model_dump(exclude_unset=True)
|
|
if "template_id" in updates and updates["template_id"] is not None:
|
|
template = db.query(Template).filter(Template.id == updates["template_id"]).first()
|
|
if not template:
|
|
raise HTTPException(status_code=404, detail="Template not found")
|
|
|
|
for field, value in updates.items():
|
|
setattr(annotation, field, value)
|
|
|
|
db.commit()
|
|
db.refresh(annotation)
|
|
logger.info("Updated annotation id=%s", annotation.id)
|
|
return annotation
|
|
|
|
|
|
@router.delete(
|
|
"/annotations/{annotation_id}",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Delete a saved annotation",
|
|
)
|
|
def delete_annotation(
|
|
annotation_id: int,
|
|
db: Session = Depends(get_db),
|
|
) -> Response:
|
|
"""Delete an annotation and its derived mask rows through ORM cascade."""
|
|
annotation = db.query(Annotation).filter(Annotation.id == annotation_id).first()
|
|
if not annotation:
|
|
raise HTTPException(status_code=404, detail="Annotation not found")
|
|
|
|
db.delete(annotation)
|
|
db.commit()
|
|
logger.info("Deleted annotation id=%s", annotation_id)
|
|
return Response(status_code=status.HTTP_204_NO_CONTENT)
|