Support UTF8 to UTF16 LE.

Support Unicode helper
Fix ANSFR to show 2 same faces in 1 image

modules/ANSFR/ANSFR.cpp

@@ -2161,6 +2161,9 @@ namespace ANSCENTER {
                 START_TIMER(postprocess);
                 resultObjects=UpdateFaceAttributes(recognizedFaces, camera_id);
                 END_TIMER(postprocess, "Update Face Attributes Time");
+
+                // Deduplicate: if two faces matched the same userId, keep only the highest confidence
+                ensureUniqueUserIdWithHighestConfidence(resultObjects);
             }
         }
         catch (const std::exception& e) {
@@ -2405,7 +2408,7 @@ namespace ANSCENTER {
             END_TIMER(json_build, "JSON Build Time");
 
             START_TIMER(json_serialize);
-            std::string result = root.dump(-1, ' ', true);
+            std::string result = root.dump();
             END_TIMER(json_serialize, "JSON Serialize Time");
 
             END_TIMER(json_total, "JSON Conversion Total Time");
@@ -2442,7 +2445,7 @@ namespace ANSCENTER {
 
         root["results"] = detectedObjects;
 
-        return root.dump(-1, ' ', true);
+        return root.dump();
     }
      
     // Validation helper methods