Error while running Example of TrainAnSSDObjectDetector

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hello! please help me out to solve this
Invalid transform function defined on datastore.
data = read(ds);
exampleDataFromDatastore = iReadNonEmptyOneRow(ds);
nnet.internal.cnn.GeneralDatastoreDispatcher( ...
dispatcher = nnet.internal.cnn.DataDispatcherFactory.createDataDispatcherMIMO( ...
trainingDispatcher = iCreateTrainingDataDispatcher(ds, mapping, trainedNet,...
[network, info] = vision.internal.cnn.trainNetwork(...
Caused by:
Applying the function '@(varargin)iSelectTrainingSamples(params,varargin{:})' to the 1st row of A generated the following error:
The value of 'bboxB' is invalid. Expected input to be finite.

Accepted Answer

Divya Gaddipati
Divya Gaddipati on 16 Jun 2020
From the error "The value of 'bboxB' is invalid. Expected input to be finite.", it seems like one or more of the groundtruth bounding boxes have NaNs/Inf values. Make sure your groundtruths are valid and non-empty i.e., the values of the bounding boxes are finite, positive, non-fractional, non-NaN and should be within the image boundary with a positive height and width. You should either discard or fix the samples with invalid bounding boxes.

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