Resolve https://github.com/opencv/opencv/issues/15863

modules/dnn/src/tensorflow/tf_importer.cpp

@@ -1585,7 +1585,7 @@ void TFImporter::populateNet(Net dstNet)
                 }
             }
         }
-        else if (type == "FusedBatchNorm")
+        else if (type == "FusedBatchNorm" || type == "FusedBatchNormV3")
         {
             // op: "FusedBatchNorm"
             // input: "input"

samples/dnn/tf_text_graph_ssd.py

@@ -64,7 +64,7 @@ def createSSDGraph(modelPath, configPath, outputPath):
     # Nodes that should be kept.
     keepOps = ['Conv2D', 'BiasAdd', 'Add', 'Relu', 'Relu6', 'Placeholder', 'FusedBatchNorm',
                'DepthwiseConv2dNative', 'ConcatV2', 'Mul', 'MaxPool', 'AvgPool', 'Identity',
-               'Sub', 'ResizeNearestNeighbor', 'Pad']
+               'Sub', 'ResizeNearestNeighbor', 'Pad', 'FusedBatchNormV3']
 
     # Node with which prefixes should be removed
     prefixesToRemove = ('MultipleGridAnchorGenerator/', 'Concatenate/', 'Postprocessor/', 'Preprocessor/map')