Add neck-based CT prealignment before VoxelMorph

preprocess.py

@@ -53,9 +53,9 @@ def ensure_multiple_of_16(shape: Sequence[int]) -> Tuple[int, int, int]:
     shape = tuple(int(v) for v in shape)
     if len(shape) != 3:
         raise ValueError("target_shape 必须包含 3 个维度。")
-    bad = [v for v in shape if v <= 0 or v % 16 != 0]
+    bad = [v for v in shape if v <= 0 or v % 32 != 0]
     if bad:
-        raise ValueError(f"VoxelMorph 建议三维尺寸均为 16 的倍数，当前非法维度: {bad}")
+        raise ValueError(f"VoxelMorph 当前 U-Net 建议三维尺寸均为 32 的倍数，当前非法维度: {bad}")
     return shape  # type: ignore[return-value]
 
 
@@ -324,4 +324,3 @@ def main(argv: Iterable[str] | None = None) -> None:
 
 if __name__ == "__main__":
     main()
-