Qualcomm AI Engine Direct - Add depth_anything_v2_small to oss_scripts

[zhaoxul-qti]

Summary

• Enable depth_anything_v2_small model (https://github.com/DepthAnything/Depth-Anything-V2) on HTP and integrates the script into oss_scripts/.
• Provide --dump_example_output flag to dump the example image and export depth‑estimation images from both source model and QNN outputs.
• Add unit tests to cover the added model.

Notes

• SQNR is used for matrix evaluation as it provides a more intuitive comparison for our use case compared to AbsRel or RMSE referenced in the paper.
• The model accepts input images of arbitrary resolutions. For evaluation, we use ImageNet samples, rather than the dataset cited in the original publication.

Constraints

• The model is currently unsupported on GPU backend due to the unsupported cubic mode of Resize op.
• GPU support will be enabled once constant folding is introduced, allowing the cubic Resize op to be eliminated.

Test plan

• Test with random images from ImageNet:
  python examples/qualcomm/oss_scripts/depthanything_v2_small.py -a $ARTIFACT -d $IMAGENET_FOLDER_PATH -b build-android/ -H $HOST_NAME -s $DEVICE_ID -m $SOC_ID --seed 1126

• Test with the example image and export the post-processed source model output and QNN output into depth-estimation images:
  python examples/qualcomm/oss_scripts/depthanything_v2_small.py -a $ARTIFACT -d $IMAGENET_FOLDER_PATH -b build-android/ -H $HOST_NAME -s $DEVICE_ID -m $SOC_ID --dump_example_output

Results

Example Image:

Source Model Output (with depth-estimation post-processing):

QNN-HTP Output (with depth-estimation post-processing):

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/18657

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❌ 1 New Failure, 2 Unrelated Failures

As of commit 78460b3 with merge base c39a0ff ():

NEW FAILURE - The following job has failed:

• Lint / lintrunner-mypy (gh)
  >>> Lint for backends/arm/test/modules/test_static_cache.py:

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[zhaoxul-qti]

Hi @cccclai, @abhinaykukkadapu,

This PR is to add the model depth_anything_v2_small to qualcomm/oss_scripts. Would you mind helping to take a look?

Thanks,
Lambert

[abhinaykukkadapu]

@zhaoxul-qti looks great, thanks for adding the support.

[zhaoxul-qti]

Hi @abhinaykukkadapu,
Thanks for reviewing this PR.
It looks like the lintrunner failure is not caused by this PR. Could you take another look and help with the merge?
Thanks!