Files
Pre_Seg_Server/backend/tests/test_ai.py
admin 8a9247075e feat: 完善 AI 分割与工作区标注闭环
功能增加:

- 将视频导入和生成帧拆成两个明确动作,项目库生成帧时选择 FPS,工作区不再自动触发拆帧。

- 为工作区新增调整多边形工具,支持选中 mask、拖动顶点、边中点插点、双击边界按位置插点,并保留多 polygon 子区域编辑。

- 打通 AI 页 SAM2/SAM3 结果到工作区的联动,生成 mask 后自动选中,可在右侧分类树换标签,并推送到工作区继续编辑。

- 增强 Dashboard WebSocket 连接状态与心跳,使用真实 onopen/onclose/onerror 状态驱动前端显示。

- 完善 SAM3 external worker 适配,支持 box prompt、semantic 请求级阈值和 video tracker 路径。

bugfix:

- 修复 SAM2 文本语义误走自动分割的问题,改为提示使用点提示或切换 SAM3。

- 修复 SAM2 多候选重叠显示的问题,点提示和 auto fallback 默认只采用最高分候选。

- 修复 SAM2 反向点看起来无效的问题,带负点时启用背景过滤,过滤为空时移除旧候选。

- 修复 SAM3 单个 2D mask 结果无法转 polygon、低阈值 semantic 返回被默认阈值吞掉的问题。

- 修复 AI 页 mask 未选中导致分类树无法修改 SAM2 结果标签的问题。

测试和文档:

- 补充 CanvasArea、AISegmentation、ProjectLibrary、VideoWorkspace、Dashboard、websocket 和 SAM engine/API 测试。

- 新增 backend/tests/test_sam2_engine.py,覆盖 SAM2 单候选请求和 auto fallback 行为。

- 更新 README、AGENTS 和 doc 需求/设计/接口/测试矩阵,按当前实现冻结功能状态。
2026-05-01 21:50:17 +08:00

478 lines
16 KiB
Python

import numpy as np
import cv2
def _create_project_and_frame(client):
project = client.post("/api/projects", json={"name": "AI Project"}).json()
frame = client.post(f"/api/projects/{project['id']}/frames", json={
"project_id": project["id"],
"frame_index": 0,
"image_url": "frames/0.jpg",
"width": 640,
"height": 360,
}).json()
template = client.post("/api/templates", json={
"name": "Template",
"color": "#06b6d4",
"z_index": 0,
"classes": [],
"rules": [],
}).json()
return project, frame, template
def test_predict_accepts_point_object_with_labels(client, monkeypatch):
_, frame, _ = _create_project_and_frame(client)
calls = {}
monkeypatch.setattr("routers.ai._load_frame_image", lambda frame: np.zeros((10, 10, 3), dtype=np.uint8))
def fake_predict_points(image, points, labels):
calls["args"] = (points, labels)
return (
[[[0.1, 0.1], [0.9, 0.1], [0.9, 0.9]]],
[0.95],
)
monkeypatch.setattr("routers.ai.sam_registry.predict_points", lambda model, image, points, labels: fake_predict_points(image, points, labels))
response = client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "point",
"prompt_data": {"points": [[0.5, 0.5], [0.1, 0.1]], "labels": [1, 0]},
})
assert response.status_code == 200
assert response.json()["scores"] == [0.95]
assert calls["args"] == ([[0.5, 0.5], [0.1, 0.1]], [1, 0])
def test_predict_applies_crop_and_background_filter_options(client, monkeypatch):
_, frame, _ = _create_project_and_frame(client)
calls = {}
monkeypatch.setattr("routers.ai._load_frame_image", lambda frame: np.zeros((100, 200, 3), dtype=np.uint8))
def fake_predict_points(model, image, points, labels):
calls["shape"] = image.shape
calls["points"] = points
calls["labels"] = labels
return (
[
[[0.0, 0.0], [0.2, 0.0], [0.2, 0.2]],
[[0.45, 0.45], [0.55, 0.45], [0.55, 0.55]],
],
[0.9, 0.01],
)
monkeypatch.setattr("routers.ai.sam_registry.predict_points", fake_predict_points)
response = client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "point",
"prompt_data": {"points": [[0.5, 0.5], [0.52, 0.52]], "labels": [1, 0]},
"options": {
"crop_to_prompt": True,
"crop_margin": 0.1,
"auto_filter_background": True,
"min_score": 0.05,
},
})
assert response.status_code == 200
assert calls["shape"][0] < 100
assert calls["shape"][1] < 200
assert calls["labels"] == [1, 0]
assert response.json()["scores"] == [0.9]
polygon = response.json()["polygons"][0]
assert all(0.0 <= coord <= 1.0 for point in polygon for coord in point)
def test_predict_box_and_semantic_fallback(client, monkeypatch):
_, frame, _ = _create_project_and_frame(client)
calls = {}
monkeypatch.setattr("routers.ai._load_frame_image", lambda frame: np.zeros((10, 10, 3), dtype=np.uint8))
monkeypatch.setattr("routers.ai.sam_registry.predict_box", lambda model, image, box: (
[[[0.2, 0.2], [0.8, 0.2], [0.8, 0.8]]],
[0.8],
))
def fake_predict_semantic(model, image, text, confidence_threshold=None):
calls["semantic"] = {
"model": model,
"text": text,
"confidence_threshold": confidence_threshold,
}
return (
[[[0.0, 0.0], [1.0, 0.0], [1.0, 1.0]]],
[0.5],
)
monkeypatch.setattr("routers.ai.sam_registry.predict_semantic", fake_predict_semantic)
box_response = client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "box",
"prompt_data": [0.2, 0.2, 0.8, 0.8],
})
semantic_response = client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "semantic",
"prompt_data": "胆囊",
"model": "sam3",
"options": {"min_score": 0.05},
})
assert box_response.status_code == 200
assert box_response.json()["scores"] == [0.8]
assert semantic_response.status_code == 200
assert semantic_response.json()["scores"] == [0.5]
assert calls["semantic"] == {
"model": "sam3",
"text": "胆囊",
"confidence_threshold": 0.05,
}
def test_predict_interactive_combines_box_and_points(client, monkeypatch):
_, frame, _ = _create_project_and_frame(client)
calls = {}
monkeypatch.setattr("routers.ai._load_frame_image", lambda frame: np.zeros((10, 10, 3), dtype=np.uint8))
def fake_predict_interactive(model, image, box, points, labels):
calls["model"] = model
calls["box"] = box
calls["points"] = points
calls["labels"] = labels
return (
[[[0.2, 0.2], [0.8, 0.2], [0.8, 0.8]]],
[0.88],
)
monkeypatch.setattr("routers.ai.sam_registry.predict_interactive", fake_predict_interactive)
response = client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "interactive",
"prompt_data": {
"box": [0.1, 0.1, 0.9, 0.9],
"points": [[0.5, 0.5], [0.2, 0.2]],
"labels": [1, 0],
},
"model": "sam2",
})
assert response.status_code == 200
assert response.json()["scores"] == [0.88]
assert calls == {
"model": "sam2",
"box": [0.1, 0.1, 0.9, 0.9],
"points": [[0.5, 0.5], [0.2, 0.2]],
"labels": [1, 0],
}
def test_model_status_reports_runtime(client, monkeypatch):
monkeypatch.setattr("routers.ai.sam_registry.runtime_status", lambda selected_model=None: {
"selected_model": selected_model or "sam2",
"gpu": {
"available": False,
"device": "cpu",
"name": None,
"torch_available": True,
"torch_version": "2.x",
"cuda_version": None,
},
"models": [
{
"id": "sam2",
"label": "SAM 2",
"available": True,
"loaded": False,
"device": "cpu",
"supports": ["point", "box", "auto"],
"message": "ready",
"package_available": True,
"checkpoint_exists": True,
"checkpoint_path": "model.pt",
"python_ok": True,
"torch_ok": True,
"cuda_required": False,
},
{
"id": "sam3",
"label": "SAM 3",
"available": False,
"loaded": False,
"device": "unavailable",
"supports": ["semantic"],
"message": "missing Python 3.12+ runtime",
"package_available": False,
"checkpoint_exists": False,
"checkpoint_path": None,
"python_ok": False,
"torch_ok": True,
"cuda_required": True,
},
],
})
response = client.get("/api/ai/models/status?selected_model=sam3")
assert response.status_code == 200
body = response.json()
assert body["selected_model"] == "sam3"
assert body["models"][1]["id"] == "sam3"
assert body["models"][1]["available"] is False
def test_propagate_saves_tracked_annotations(client, monkeypatch):
project = client.post("/api/projects", json={"name": "Video Project"}).json()
frames = [
client.post(f"/api/projects/{project['id']}/frames", json={
"project_id": project["id"],
"frame_index": idx,
"image_url": f"frames/{idx}.jpg",
"width": 640,
"height": 360,
}).json()
for idx in range(3)
]
calls = {}
monkeypatch.setattr("routers.ai.download_file", lambda object_name: b"jpeg")
def fake_propagate_video(model, frame_paths, source_frame_index, seed, direction, max_frames):
calls["model"] = model
calls["source_frame_index"] = source_frame_index
calls["seed"] = seed
calls["direction"] = direction
calls["max_frames"] = max_frames
calls["frame_count"] = len(frame_paths)
return [
{
"frame_index": 0,
"polygons": [[[0.1, 0.1], [0.2, 0.1], [0.2, 0.2]]],
"scores": [0.9],
"object_ids": [1],
},
{
"frame_index": 1,
"polygons": [[[0.15, 0.15], [0.25, 0.15], [0.25, 0.25]]],
"scores": [0.8],
"object_ids": [1],
},
]
monkeypatch.setattr("routers.ai.sam_registry.propagate_video", fake_propagate_video)
response = client.post("/api/ai/propagate", json={
"project_id": project["id"],
"frame_id": frames[0]["id"],
"model": "sam2",
"direction": "forward",
"max_frames": 2,
"include_source": False,
"seed": {
"polygons": [[[0.1, 0.1], [0.2, 0.1], [0.2, 0.2]]],
"bbox": [0.1, 0.1, 0.1, 0.1],
"label": "胆囊",
"color": "#ff0000",
"class_metadata": {"id": "c1", "name": "胆囊", "color": "#ff0000", "zIndex": 20},
"template_id": None,
},
})
assert response.status_code == 200
body = response.json()
assert body["created_annotation_count"] == 1
assert body["processed_frame_count"] == 2
assert calls["model"] == "sam2"
assert calls["source_frame_index"] == 0
assert calls["direction"] == "forward"
assert calls["frame_count"] == 2
saved = body["annotations"][0]
assert saved["frame_id"] == frames[1]["id"]
assert saved["mask_data"]["source"] == "sam2_propagation"
assert saved["mask_data"]["class"]["name"] == "胆囊"
assert saved["mask_data"]["score"] == 0.8
listing = client.get(f"/api/ai/annotations?project_id={project['id']}")
assert len(listing.json()) == 1
def test_predict_validation_errors(client, monkeypatch):
project, _, _ = _create_project_and_frame(client)
assert client.post("/api/ai/predict", json={
"image_id": 999,
"prompt_type": "point",
"prompt_data": [[0.5, 0.5]],
}).status_code == 404
frame = client.post(f"/api/projects/{project['id']}/frames", json={
"project_id": project["id"],
"frame_index": 1,
"image_url": "frames/1.jpg",
}).json()
monkeypatch.setattr("routers.ai._load_frame_image", lambda frame: np.zeros((10, 10, 3), dtype=np.uint8))
assert client.post("/api/ai/predict", json={
"image_id": frame["id"],
"prompt_type": "box",
"prompt_data": [0.1, 0.2],
}).status_code == 400
def test_save_annotation_validates_project_and_frame(client):
project, frame, template = _create_project_and_frame(client)
saved = client.post("/api/ai/annotate", json={
"project_id": project["id"],
"frame_id": frame["id"],
"template_id": template["id"],
"mask_data": {"polygons": [[[0.1, 0.1], [0.9, 0.1], [0.9, 0.9]]]},
"points": [[0.5, 0.5]],
"bbox": [0.1, 0.1, 0.8, 0.8],
})
assert saved.status_code == 201
assert saved.json()["project_id"] == project["id"]
listing = client.get(f"/api/ai/annotations?project_id={project['id']}")
assert listing.status_code == 200
assert listing.json()[0]["id"] == saved.json()["id"]
frame_listing = client.get(f"/api/ai/annotations?project_id={project['id']}&frame_id={frame['id']}")
assert frame_listing.status_code == 200
assert len(frame_listing.json()) == 1
missing_project = client.post("/api/ai/annotate", json={"project_id": 999})
assert missing_project.status_code == 404
missing_frame = client.post("/api/ai/annotate", json={
"project_id": project["id"],
"frame_id": 999,
})
assert missing_frame.status_code == 404
missing_project_list = client.get("/api/ai/annotations?project_id=999")
assert missing_project_list.status_code == 404
def test_update_and_delete_annotation(client):
project, frame, template = _create_project_and_frame(client)
saved = client.post("/api/ai/annotate", json={
"project_id": project["id"],
"frame_id": frame["id"],
"template_id": template["id"],
"mask_data": {
"polygons": [[[0.1, 0.1], [0.9, 0.1], [0.9, 0.9]]],
"label": "AI Mask",
"color": "#06b6d4",
},
"points": [[0.5, 0.5]],
"bbox": [0.1, 0.1, 0.8, 0.8],
}).json()
updated = client.patch(f"/api/ai/annotations/{saved['id']}", json={
"template_id": template["id"],
"mask_data": {
"polygons": [[[0.2, 0.2], [0.8, 0.2], [0.8, 0.8]]],
"label": "胆囊",
"color": "#ff0000",
"class": {"id": "c1", "name": "胆囊", "color": "#ff0000", "zIndex": 20},
},
"points": [[0.4, 0.4]],
"bbox": [0.2, 0.2, 0.6, 0.6],
})
assert updated.status_code == 200
body = updated.json()
assert body["mask_data"]["label"] == "胆囊"
assert body["mask_data"]["class"]["id"] == "c1"
assert body["points"] == [[0.4, 0.4]]
assert body["bbox"] == [0.2, 0.2, 0.6, 0.6]
listing = client.get(f"/api/ai/annotations?project_id={project['id']}")
assert listing.status_code == 200
assert listing.json()[0]["mask_data"]["class"]["name"] == "胆囊"
deleted = client.delete(f"/api/ai/annotations/{saved['id']}")
assert deleted.status_code == 204
empty_listing = client.get(f"/api/ai/annotations?project_id={project['id']}")
assert empty_listing.status_code == 200
assert empty_listing.json() == []
def test_update_and_delete_annotation_validation(client):
project, frame, template = _create_project_and_frame(client)
saved = client.post("/api/ai/annotate", json={
"project_id": project["id"],
"frame_id": frame["id"],
"template_id": template["id"],
}).json()
assert client.patch("/api/ai/annotations/999", json={"bbox": [0, 0, 1, 1]}).status_code == 404
assert client.delete("/api/ai/annotations/999").status_code == 404
assert client.patch(
f"/api/ai/annotations/{saved['id']}",
json={"template_id": 999},
).status_code == 404
def test_import_gt_mask_creates_annotations_with_seed_points(client):
project, frame, template = _create_project_and_frame(client)
mask = np.zeros((360, 640), dtype=np.uint8)
cv2.rectangle(mask, (100, 80), (260, 220), 255, thickness=-1)
ok, encoded = cv2.imencode(".png", mask)
assert ok
response = client.post(
"/api/ai/import-gt-mask",
data={
"project_id": str(project["id"]),
"frame_id": str(frame["id"]),
"template_id": str(template["id"]),
"label": "Imported GT",
"color": "#22c55e",
},
files={"file": ("mask.png", encoded.tobytes(), "image/png")},
)
assert response.status_code == 201
body = response.json()
assert len(body) == 1
assert body[0]["project_id"] == project["id"]
assert body[0]["frame_id"] == frame["id"]
assert body[0]["template_id"] == template["id"]
assert body[0]["mask_data"]["label"] == "Imported GT"
assert body[0]["mask_data"]["source"] == "gt_mask"
assert body[0]["mask_data"]["gt_label_value"] == 255
assert len(body[0]["mask_data"]["polygons"][0]) >= 3
assert len(body[0]["points"]) == 1
assert 0.0 <= body[0]["points"][0][0] <= 1.0
assert 0.0 <= body[0]["points"][0][1] <= 1.0
def test_import_gt_mask_splits_label_values(client):
project, frame, _ = _create_project_and_frame(client)
mask = np.zeros((360, 640), dtype=np.uint8)
cv2.rectangle(mask, (20, 20), (120, 120), 1, thickness=-1)
cv2.rectangle(mask, (220, 80), (320, 180), 2, thickness=-1)
ok, encoded = cv2.imencode(".png", mask)
assert ok
response = client.post(
"/api/ai/import-gt-mask",
data={
"project_id": str(project["id"]),
"frame_id": str(frame["id"]),
"label": "GT Class",
},
files={"file": ("labels.png", encoded.tobytes(), "image/png")},
)
assert response.status_code == 201
body = sorted(response.json(), key=lambda item: item["mask_data"]["gt_label_value"])
assert [item["mask_data"]["gt_label_value"] for item in body] == [1, 2]
assert [item["mask_data"]["label"] for item in body] == ["GT Class 1", "GT Class 2"]
assert all(len(item["points"]) == 1 for item in body)