diff --git a/AlgorithmModule/src/AI_Edge_Algin.cpp b/AlgorithmModule/src/AI_Edge_Algin.cpp
index f3e1873..cd630bc 100644
--- a/AlgorithmModule/src/AI_Edge_Algin.cpp
+++ b/AlgorithmModule/src/AI_Edge_Algin.cpp
@@ -245,9 +245,10 @@ int AI_Edge_Algin::Detect(const cv::Mat &img, DetConfig *pDetConfig, std::shared
     cv::Mat Tag_outimg;
 
     std::vector<std::thread> vecThreads;
-    vecThreads.emplace_back([&]() { re0 = Get_Edge(0, img, pDetConfig, m_pDetConfig->strChannel, Big_roi, Big_outimg, true); });
-    vecThreads.emplace_back([&]() { re1 = Get_Edge(1, img, pDetConfig, m_pDetConfig->strChannel, Small_roi, Small_outimg, false); });
-    vecThreads.emplace_back([&]() { re2 = Get_Edge(2, img, pDetConfig, m_pDetConfig->strChannel, Tag_roi, Tag_outimg, false); });
+    re0 = Get_Edge(0, img, pDetConfig, m_pDetConfig->strChannel, Big_roi, Big_outimg, true);
+    cv::Mat Big_outimg_src = img(Big_roi[0].boundingRect());
+    vecThreads.emplace_back([&]() { re1 = Get_Edge(1, Big_outimg_src, pDetConfig, m_pDetConfig->strChannel, Small_roi, Small_outimg, false); });
+    vecThreads.emplace_back([&]() { re2 = Get_Edge(2, Big_outimg_src, pDetConfig, m_pDetConfig->strChannel, Tag_roi, Tag_outimg, false); });
     for (auto &t : vecThreads)
     {
         t.join();