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Fixes #14181, validate model output shape for ObjectDetector. #14215

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merged 1 commit into from
Mar 7, 2019

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frankfliu
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Description

Fixes #14181

Make sure model passed to ObjectDetector supports object detection and output bounding box.

Testing:
Executed attached testing code, InvalidArgumentException with proper message is thrown.

Checklist

Essentials

Please feel free to remove inapplicable items for your PR.

  • Changes are complete (i.e. I finished coding on this PR)
  • All changes have test coverage:
  • Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
  • Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
  • Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
  • Code is well-documented:
  • For user-facing API changes, API doc string has been updated.
  • For new C++ functions in header files, their functionalities and arguments are documented.
  • For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
  • Check the API doc at http:https://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$PR_ID/$BUILD_ID/index.html
  • To the my best knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change

@roywei
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roywei commented Feb 21, 2019

@mxnet-label-bot add[Scala, pr-awaiting-review]

@marcoabreu marcoabreu added pr-awaiting-review PR is waiting for code review Scala labels Feb 21, 2019
@@ -66,6 +66,10 @@ class ImageClassifier(modelPathPrefix: String,
protected[infer] val height = inputShape(inputLayout.indexOf('H'))
protected[infer] val width = inputShape(inputLayout.indexOf('W'))

def outputShapes: IndexedSeq[(String, Shape)] = {
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The curly braces are not needed. You can just write def outputShapes: IndexedSeq[(String, Shape)] = predictor.outputShapes. Same for predictor.scala as well

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done

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LGTM! Thanks for adding the checker for Image Classifier

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@frankfliu Please do a pull-rebase on master to avoid Windows CI

@lanking520 lanking520 merged commit e703694 into apache:master Mar 7, 2019
@frankfliu frankfliu deleted the shape branch March 8, 2019 16:50
vdantu pushed a commit to vdantu/incubator-mxnet that referenced this pull request Mar 31, 2019
haohuanw pushed a commit to haohuanw/incubator-mxnet that referenced this pull request Jun 23, 2019
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Scala Infer ObjectDector crashes on models which don't return
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