Forums - SSD_Mobilenet DLC produces only detection_classes:0 output in NativeCpp

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SSD_Mobilenet DLC produces only detection_classes:0 output in NativeCpp
hsiaoyuh_wang
Join Date: 29 May 18
Posts: 3
Posted: Tue, 2018-07-03 23:21
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Hi,

I use the SSD_Mobilenet DLC to produce the 3 outputs with snpe-dlc-run, which caused by add the "#Postprocessor/BatchMultiClassNonMaxSuppression add_6" in the first line of the "raw_list.txt".

However, when I use the same SSD_Mobilenet DLC with the NativeCpp builded snpe-sample.

The output is only detection_classes.

I manually changed the function createOutputBufferMap in CreateUserBuffer.cpp.

const char *name = "detection_boxes:0"; or "detection_boxes" or "Postprocessor/BatchMultiClassNonMaxSuppression_boxes" or "Postprocessor/BatchMultiClassNonMaxSuppression"

createUserBuffer(outputMap, applicationBuffers, snpeUserBackedBuffers, snpe, name);
 
But got issue like this:
the terminate called after throwing an instance of 'std::runtime_error'
  what():  Error obtaining attributes for input tensor detection_boxes
Aborted (core dumped)
 
I think this is because "snpe->getInputOutputBufferAttributes(name)" cannot find those opts.
 
Could anyone help me fix this? 
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Re: SSD_Mobilenet DLC produces only detection_classes:0...
pratesh_reddy
Join Date: 16 Jul 18
Posts: 3
Posted: Tue, 2018-07-17 03:43
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Hi hsiaoyuh_wang,

I am facing the same issue. Were you able to solve it.

 

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Re: SSD_Mobilenet DLC produces only detection_classes:0...
svenzhang
Join Date: 18 Jun 18
Posts: 9
Posted: Tue, 2018-07-17 07:49
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Hi all,

I got the same issue with you guys. The converter not worked very well for mobilenet-ssd v1. if you add --verbose as an option, you will find only detection_class setted as output.

I tried to understanding the detail of converter, the expected output node such as detection_score removed by function "_resolve_hierarchical_resolution_conflicts", I still don't know why. Could you guys share your ideas to fix this?

BTW, do you guys have a try to resize the network's input from 4,300,300,3 to another shape? I cannot make this resize.

Thanks,

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Re: SSD_Mobilenet DLC produces only detection_classes:0...
pratesh_reddy
Join Date: 16 Jul 18
Posts: 3
Posted: Tue, 2018-07-17 23:31
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Hi,

I've regerated the DLC  and then ran the snpe-dlc-run with raw_list.txt file having

#Postprocessor/BatchMultiClassNonMaxSuppression add_6

as the first line. Then it worked. Got

Postprocessor/BatchMultiClassNonMaxSuppression_classes.raw
Postprocessor/BatchMultiClassNonMaxSuppression_scores.raw
Postprocessor/BatchMultiClassNonMaxSuppression_boxes.raw

in the output folder for each of the image input.

But still don't know the actual reason for not working in the first try.

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