Intel® Distribution of OpenVINO™ Toolkit
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Wrong Input Array Loaded but Still Getting Results sometimes

idata
Employee
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I would like check if there is any python API that we can use to validate if the data to be fed to NCS is of the right dimension/size of the graph.

 

We observe that when we feed an input of different dimension, the LoadTensor return True,

 

meaning a success of loading the data to the NCS and we are still able to obtain the results,

 

of course the output numbers are invalid float16 numbers and at times, the output is NAN.

 

Do the backend of LoadTensor or GetResult check the input dimension?

 

It seems reasonable that the API should do that internally since there is no indication to the developer that

 

the input dimension is wrong, and getting results give a wrong indication of "it is running/working"

 

unless the developer is aware of the network topology of the used graph

 

which could be delivered by third party in binary format and knowledge of input size may not be examined.

 

if I am missing out something, pls let me know. Thanks!

 

You may try out at your end with the snippet below.

 

for i in range(10): img = np.random.rand(400, 400, 3).astype(np.float16) # pls set size to be different from required size if graph.LoadTensor(img, 'user object'): output, userobj = graph.GetResults() print(output) else: print("Unable to load tensor")
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