Jetson-inference

user163861 · July 19, 2022, 5:11am

Can I access to objects bounding box coordination which tensorrt engine gives to nvinfer. I think only getting bb coordination is possible and setting them manually (or changing some of objects location which trt gives) is impossible. sometimes I need to ignore some objects location tensorrt gives their location to nvinfer. How can I do that?
in our application inference is done for detection no classifiaction.

AastaLLL · July 19, 2022, 7:56am

Hi,

Please check the source below:
You can filter or modify the bounding box before output.

github.com

dusty-nv/jetson-inference/blob/master/c/detectNet.cpp#L762


      
          

          	if( !ProcessNetwork() )

          		return -1;

          	

          	PROFILER_END(PROFILER_NETWORK);

          	PROFILER_BEGIN(PROFILER_POSTPROCESS);

          

          	// post-processing / clustering

          	int numDetections = 0;

          

          	if( IsModelType(MODEL_UFF) )

          	{		

          		const int rawDetections = *(int*)mOutputs[OUTPUT_NUM].CPU;

          		const int rawParameters = DIMS_W(mOutputs[OUTPUT_UFF].dims);

          

          #ifdef DEBUG_CLUSTERING	

          		LogDebug(LOG_TRT "detectNet::Detect() -- %i unfiltered detections\n", rawDetections);

          #endif

          

          		// filter the raw detections by thresholding the confidence

          		for( int n=0; n < rawDetections; n++ )

Thanks.

user163861 · July 19, 2022, 8:07am

Hi AastaLLL
I don’t find any function to process objects in nvinfer for primary(detection) mode. there is a function with name gst_nvinfer_process_objects which is called only in secondary mode.
Can you show me which function should I change?

user163861 · July 19, 2022, 8:07am

Hi AastaLLL
I don’t find any function to process objects in nvinfer for primary(detection) mode. there is a function with name gst_nvinfer_process_objects which is called only in secondary mode.
Can you show me which function should I change?

user163861 · July 19, 2022, 8:33am

I found it . It is attach_metadata_detector function.

AastaLLL · July 25, 2022, 3:56am

Hi,

Is your issue fixed after updating the function?

Thanks.

user163861 · July 25, 2022, 4:22am

yes.It fixed.
Ty