diff --git a/src/aliceVision/feature/ImageDescriber.cpp b/src/aliceVision/feature/ImageDescriber.cpp
index 5cdf5f1626..055f859877 100644
--- a/src/aliceVision/feature/ImageDescriber.cpp
+++ b/src/aliceVision/feature/ImageDescriber.cpp
@@ -228,9 +228,9 @@ std::unique_ptr<ImageDescriber> createImageDescriber(EImageDescriberType imageDe
         case EImageDescriberType::AKAZE_LIOP:
             describerPtr.reset(new ImageDescriber_AKAZE(AKAZEParams(AKAZEOptions(), feature::AKAZE_LIOP)));
             break;
-        //Unknown descriptor to be used when the descriptor is computed outside of alicevsion
-        case EImageDescriberType::UNKNOWN:
-            describerPtr.reset(new UnknownImageDescriber());
+        //Generic descriptor to be used when the descriptor is computed outside of alicevsion
+        case EImageDescriberType::GENERIC:
+            describerPtr.reset(new GenericImageDescriber());
             break;
 
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
diff --git a/src/aliceVision/feature/ImageDescriber.hpp b/src/aliceVision/feature/ImageDescriber.hpp
index 5d91a9fa1c..59c0652523 100644
--- a/src/aliceVision/feature/ImageDescriber.hpp
+++ b/src/aliceVision/feature/ImageDescriber.hpp
@@ -264,12 +264,12 @@ class ImageDescriber
 /**
  * @brief Used to load descripters computed outside of meshroom.
  */
-class UnknownImageDescriber  : public ImageDescriber
+class GenericImageDescriber  : public ImageDescriber
 {
   public:
-    UnknownImageDescriber() = default;
+    GenericImageDescriber() = default;
 
-    virtual ~UnknownImageDescriber() = default;
+    virtual ~GenericImageDescriber() = default;
 
      /**
      * @brief Check if the image describer use CUDA
@@ -287,7 +287,7 @@ class UnknownImageDescriber  : public ImageDescriber
      * @brief Get the corresponding EImageDescriberType
      * @return EImageDescriberType
      */
-    EImageDescriberType getDescriberType() const override { return EImageDescriberType::UNKNOWN; }
+    EImageDescriberType getDescriberType() const override { return EImageDescriberType::GENERIC; }
 
     /**
      * @brief Get the total amount of RAM needed for a
@@ -363,7 +363,7 @@ class UnknownImageDescriber  : public ImageDescriber
      */
     void allocate(std::unique_ptr<Regions>& regions) const override 
     {
-        regions.reset(new UNKNOWN_Regions);
+        regions.reset(new GENERIC_Regions);
     }
 
   private:
diff --git a/src/aliceVision/feature/imageDescriberCommon.cpp b/src/aliceVision/feature/imageDescriberCommon.cpp
index 448db0a231..32c2945808 100644
--- a/src/aliceVision/feature/imageDescriberCommon.cpp
+++ b/src/aliceVision/feature/imageDescriberCommon.cpp
@@ -61,6 +61,8 @@ std::string EImageDescriberType_enumToString(EImageDescriberType imageDescriberT
             return "akaze_liop";
         case EImageDescriberType::AKAZE_MLDB:
             return "akaze_mldb";
+        case EImageDescriberType::GENERIC:
+            return "generic";
 
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
         case EImageDescriberType::CCTAG3:
@@ -113,6 +115,9 @@ EImageDescriberType EImageDescriberType_stringToEnum(const std::string& imageDes
     if (type == "akaze_mldb")
         return EImageDescriberType::AKAZE_MLDB;
 
+    if (type == "generic")
+        return EImageDescriberType::GENERIC;
+
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
     if (type == "cctag3")
         return EImageDescriberType::CCTAG3;
diff --git a/src/aliceVision/feature/imageDescriberCommon.hpp b/src/aliceVision/feature/imageDescriberCommon.hpp
index 678d81cf02..75cc77f9bf 100644
--- a/src/aliceVision/feature/imageDescriberCommon.hpp
+++ b/src/aliceVision/feature/imageDescriberCommon.hpp
@@ -27,7 +27,9 @@ enum class EImageDescriberType : unsigned char
     
     AKAZE = 20,
     AKAZE_LIOP = 21,
-    AKAZE_MLDB = 22
+    AKAZE_MLDB = 22,
+
+    GENERIC = 100
 
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
     ,
@@ -111,7 +113,8 @@ inline float getStrongSupportCoeff(EImageDescriberType imageDescriberType)
         case EImageDescriberType::AKAZE_LIOP:
         case EImageDescriberType::AKAZE_MLDB:
             return 0.14f;
-
+        case EImageDescriberType::GENERIC:
+            return -1.0f;
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
         case EImageDescriberType::CCTAG3:
         case EImageDescriberType::CCTAG4:
diff --git a/src/aliceVision/feature/regionsFactory.hpp b/src/aliceVision/feature/regionsFactory.hpp
index 72a928a1f7..bb6b992edc 100644
--- a/src/aliceVision/feature/regionsFactory.hpp
+++ b/src/aliceVision/feature/regionsFactory.hpp
@@ -30,7 +30,7 @@ using AKAZE_Liop_Regions = ScalarRegions<unsigned char, 144>;
 using AKAZE_BinaryRegions = BinaryRegions<64>;
 
 /// Define an unknown feature regions 
-using UNKNOWN_Regions = ScalarRegions<float, 128>;
+using GENERIC_Regions = ScalarRegions<float, 128>;
 
 }  // namespace feature
 }  // namespace aliceVision
diff --git a/src/aliceVision/matching/svgVisualization.cpp b/src/aliceVision/matching/svgVisualization.cpp
index 1f448d2d6d..bc482a4bc0 100644
--- a/src/aliceVision/matching/svgVisualization.cpp
+++ b/src/aliceVision/matching/svgVisualization.cpp
@@ -36,6 +36,10 @@ std::string describerTypeColor(feature::EImageDescriberType descType)
             return "purple";
         case feature::EImageDescriberType::AKAZE_MLDB:
             return "purple";
+
+        case feature::EImageDescriberType::GENERIC:
+            return "black";
+
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)
         case feature::EImageDescriberType::CCTAG3:
             return "blue";
diff --git a/src/aliceVision/sfm/pipeline/regionsIO.cpp b/src/aliceVision/sfm/pipeline/regionsIO.cpp
index 9d3c4f227e..19e5555f5c 100644
--- a/src/aliceVision/sfm/pipeline/regionsIO.cpp
+++ b/src/aliceVision/sfm/pipeline/regionsIO.cpp
@@ -26,7 +26,7 @@ using namespace sfmData;
 std::unique_ptr<feature::Regions> loadRegions(const std::vector<std::string>& folders, IndexT viewId, const feature::ImageDescriber& imageDescriber)
 {
     assert(!folders.empty());
-    
+
     const std::string imageDescriberTypeName = feature::EImageDescriberType_enumToString(imageDescriber.getDescriberType());
     const std::string basename = std::to_string(viewId);
 
@@ -228,7 +228,7 @@ bool loadRegionsPerView(feature::RegionsPerView& regionsPerView,
                     std::unique_ptr<feature::Regions> regionsPtr;
                     try
                     {
-                        regionsPtr = loadRegions(featuresFolders, iter->second.get()->getViewId(), *(imageDescribers.at(i)));                        
+                        regionsPtr = loadRegions(featuresFolders, iter->second.get()->getViewId(), *(imageDescribers.at(i)));
                     }
                     catch (const std::exception& e)
                     {
diff --git a/src/aliceVision/voctree/VocabularyTree.hpp b/src/aliceVision/voctree/VocabularyTree.hpp
index 7c973e326d..f63d818502 100644
--- a/src/aliceVision/voctree/VocabularyTree.hpp
+++ b/src/aliceVision/voctree/VocabularyTree.hpp
@@ -360,8 +360,8 @@ inline std::unique_ptr<IVocabularyTree> createVoctreeForDescriberType(feature::E
         case EImageDescriberType::AKAZE_MLDB:
             res.reset(new VocabularyTree<AKAZE_BinaryRegions::DescriptorT>);
             break;
-        case EImageDescriberType::UNKNOWN:
-            res.reset(new VocabularyTree<UNKNOWN_Regions::DescriptorT>);
+        case EImageDescriberType::GENERIC:
+            res.reset(new VocabularyTree<GENERIC_Regions::DescriptorT>);
             break;
 
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_CCTAG)