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[yolov5s][INT8] Quantizing yolov5s model with batch-size > 1 to OpenVINO format #11884
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👋 Hello @txlim96, thank you for your interest in YOLOv5 🚀! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution. If this is a 🐛 Bug Report, please provide a minimum reproducible example to help us debug it. If this is a custom training ❓ Question, please provide as much information as possible, including dataset image examples and training logs, and verify you are following our Tips for Best Training Results. RequirementsPython>=3.7.0 with all requirements.txt installed including PyTorch>=1.7. To get started: git clone https://github.com/ultralytics/yolov5 # clone
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@txlim96 hi there! Thank you for bringing this issue to our attention. We appreciate your detailed report. Based on the error you encountered when changing the batch size to a different number during the export process, it appears that there might be a reshaping issue related to the batch size. Without quantization (without the To determine whether this is a YOLOv5 repository issue or an OpenVINO issue, it would be helpful to investigate further. Could you please provide some additional information?
Please let us know your findings, and we will be happy to assist you further in resolving this issue. Thank you for your valuable contribution! |
Hi @glenn-jocher,
# Export model
python3 export.py --weights yolov5s.pt --int8 --include tflite --batch-size 4
# Validation
python3 val.py --weights yolov5s-int8.tflite --batch-size 4 |
Hi @txlim96, Thank you for providing the additional information. Based on your findings, it seems that the issue lies with the model export process when using batch size other than 1 with quantization. The dimension mismatch error you encountered when running the quantized tflite model with a batch size of 4 further confirms this. This suggests that there may be certain constraints or limitations when quantizing the model with a batch size other than 1 using YOLOv5's current implementation. It's possible that the reshaping operations during the quantization process are not handling the batch dimension correctly. To address this issue, I recommend looking into the specific code responsible for the quantization process in YOLOv5 and checking for any potential issues related to reshaping operations with different batch sizes. Alternatively, you may also consider reaching out to the YOLOv5 community or the Ultralytics team for further assistance. They have extensive knowledge and expertise with the YOLOv5 framework and may be able to provide more insights or guidance on this issue. Thank you for bringing this to our attention, and, once again, thank you for your valuable contribution to the YOLOv5 project! |
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YOLOv5 Component
Export
Bug
When exporting the quantized yolov5s model with batch-size=1, the openvino IR files can be exported
![image](https://private-user-images.githubusercontent.com/30485660/254746137-98fa3220-8081-4b03-8f80-e57ee2d0d271.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.XTDgZ4cFXjw12Zbk-hkPsh7JrID-4ilyR6D9wdxljE8)
However, when changing the batch-size to a different number, 4 in this scenario, the following error popped up
![image](https://private-user-images.githubusercontent.com/30485660/254745610-e50a8826-6927-4292-9751-8f1b66c33ed3.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.8WDhvLr-bKtH0cCZIRzhnuR83TLXwXYxXS6cwDGNoac)
It seems to me it somehow is related to the batch size causing some issues in reshaping, however without quantizing (without --int8 argument), the model is able to be exported to openvino IR with different batch sizes, not sure is this a yolov5 repo issue or openvino issue?
Environment
Minimal Reproducible Example
Additional
No response
Are you willing to submit a PR?
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