优化脸色发青问题

libs/MVS/SceneTexture.cpp

@@ -800,6 +800,8 @@ bool MeshTexture::ListCameraFaces(FaceDataViewArr& facesDatas, float fOutlierThr
 		// scene.mesh.invalidFaces.clear();
 	}
 
+	std::vector<int> faceViewCount(faces.size(), 0);
+
 	// extract array of faces viewed by each image
 	IIndexArr views(_views);
 	if (views.empty()) {
@@ -1105,11 +1107,24 @@ bool MeshTexture::ListCameraFaces(FaceDataViewArr& facesDatas, float fOutlierThr
 				const Face& facet = faces[idxFace];
 				rasterer.idxFace = idxFace;
 
-				if (scene.is_face_visible(strName.c_str(), idxFace))
+				bool skipVisibilityCheck = false;
+				
+				int coverage = faceViewCount[idxFace];
+
+				if (coverage < 5) {
+					skipVisibilityCheck = true;
+				}
+
+				if (skipVisibilityCheck || scene.is_face_visible(strName.c_str(), idxFace))
 				{
 					rasterer.Project(facet, triangleRasterizer);
 					if (!rasterer.validFace)
 						rasterer.Project(facet, triangleRasterizer);
+
+						// 如果投影成功，增加面片覆盖率计数
+						if (rasterer.validFace) {
+							faceViewCount[idxFace]++;
+						}
 				}
 			}
 

libs/MVS/mask_face_occlusion.py

@@ -1353,7 +1353,7 @@ class ModelProcessor:
         face_visible = v0_visible | v1_visible | v2_visible
         
         # 使用与CPU版本相同的后续处理
-        shrunk_visibility = self._shrink_face_visibility(face_visible.cpu().numpy(), 6)
+        shrunk_visibility = self._shrink_face_visibility(face_visible.cpu().numpy(), 10)
         expanded_visibility = self._expand_face_visibility(face_visible.cpu().numpy(), 30)
         shrunk_visibility2 = self._shrink_face_visibility(face_visible.cpu().numpy(), 50)
         expanded_edge = expanded_visibility & ~shrunk_visibility2