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Keypoint Detection
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android
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---
library_name: pytorch
license: other
tags:
- real_time
- android
pipeline_tag: keypoint-detection
---
![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/sixd_repnet/web-assets/model_demo.png)
# SixDRepNet: Optimized for Qualcomm Devices
6DRepNet predicts head pose (pitch, yaw, roll) from a face image using a RepVGG-B1g2 backbone and a continuous 6D rotation representation, achieving robust and accurate head pose estimation.
This is based on the implementation of SixDRepNet found [here](https://github.com/thohemp/6DRepNet).
This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/sixd_repnet) library to export with custom configurations. More details on model performance across various devices, can be found [here](#performance-summary).
Qualcomm AI Hub Models uses [Qualcomm AI Hub Workbench](https://workbench.aihub.qualcomm.com) to compile, profile, and evaluate this model. [Sign up](https://myaccount.qualcomm.com/signup) to run these models on a hosted Qualcomm® device.
## Getting Started
There are two ways to deploy this model on your device:
### Option 1: Download Pre-Exported Models
Below are pre-exported model assets ready for deployment.
| Runtime | Precision | Chipset | SDK Versions | Download |
|---|---|---|---|---|
| ONNX | float | Universal | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/sixd_repnet/releases/v0.53.1/sixd_repnet-onnx-float.zip)
| QNN_DLC | float | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/sixd_repnet/releases/v0.53.1/sixd_repnet-qnn_dlc-float.zip)
| TFLITE | float | Universal | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/sixd_repnet/releases/v0.53.1/sixd_repnet-tflite-float.zip)
For more device-specific assets and performance metrics, visit **[SixDRepNet on Qualcomm® AI Hub](https://aihub.qualcomm.com/models/sixd_repnet)**.
### Option 2: Export with Custom Configurations
Use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/sixd_repnet) Python library to compile and export the model with your own:
- Custom weights (e.g., fine-tuned checkpoints)
- Custom input shapes
- Target device and runtime configurations
This option is ideal if you need to customize the model beyond the default configuration provided here.
See our repository for [SixDRepNet on GitHub](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/sixd_repnet) for usage instructions.
## Model Details
**Model Type:** Model_use_case.pose_estimation
**Model Stats:**
- Input resolution: 224x224
- Number of parameters: 15.3M
- Model size (float): 58.4 MB
## Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit
|---|---|---|---|---|---|---
| face_detector | ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.483 ms | 0 - 166 MB | NPU
| face_detector | ONNX | float | Snapdragon® 8 Elite Mobile | 1.863 ms | 3 - 166 MB | NPU
| face_detector | ONNX | float | Snapdragon® X2 Elite | 1.581 ms | 7 - 7 MB | NPU
| face_detector | ONNX | float | Snapdragon® X Elite | 3.803 ms | 7 - 7 MB | NPU
| face_detector | ONNX | float | Snapdragon® X Elite | 3.803 ms | 7 - 7 MB | NPU
| face_detector | ONNX | float | Snapdragon® 8 Gen 3 Mobile | 2.201 ms | 3 - 169 MB | NPU
| face_detector | ONNX | float | Qualcomm® QCS8550 (Proxy) | 3.469 ms | 0 - 4 MB | NPU
| face_detector | ONNX | float | Qualcomm® QCS9075 | 5.366 ms | 4 - 12 MB | NPU
| face_detector | ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.863 ms | 3 - 166 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® 8 Elite Gen 5 Mobile | 5.42 ms | 5 - 159 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® 8 Elite Mobile | 6.896 ms | 0 - 150 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® X2 Elite | 5.876 ms | 5 - 5 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® X Elite | 16.475 ms | 5 - 5 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® X Elite | 16.475 ms | 5 - 5 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® 8 Gen 3 Mobile | 9.278 ms | 5 - 173 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® QCS8275 (Proxy) | 28.312 ms | 1 - 151 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® QCS8550 (Proxy) | 15.67 ms | 5 - 8 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® SA8775P | 16.54 ms | 1 - 153 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® SA8775P | 16.54 ms | 1 - 153 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® SA8775P | 16.54 ms | 1 - 153 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® QCS9075 | 19.498 ms | 5 - 12 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® QCS8450 (Proxy) | 24.733 ms | 5 - 179 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® SA7255P | 28.312 ms | 1 - 151 MB | NPU
| face_detector | QNN_DLC | float | Qualcomm® SA8295P | 20.592 ms | 0 - 150 MB | NPU
| face_detector | QNN_DLC | float | Snapdragon® 8 Elite For Galaxy Mobile | 6.896 ms | 0 - 150 MB | NPU
| face_detector | TFLITE | float | Snapdragon® 8 Elite Gen 5 Mobile | 5.482 ms | 1 - 155 MB | NPU
| face_detector | TFLITE | float | Snapdragon® 8 Elite Mobile | 6.923 ms | 0 - 150 MB | NPU
| face_detector | TFLITE | float | Snapdragon® 8 Gen 3 Mobile | 9.272 ms | 1 - 171 MB | NPU
| face_detector | TFLITE | float | Qualcomm® QCS8275 (Proxy) | 28.26 ms | 1 - 150 MB | NPU
| face_detector | TFLITE | float | Qualcomm® QCS8550 (Proxy) | 15.666 ms | 1 - 3 MB | NPU
| face_detector | TFLITE | float | Qualcomm® SA8775P | 16.531 ms | 1 - 152 MB | NPU
| face_detector | TFLITE | float | Qualcomm® SA8775P | 16.531 ms | 1 - 152 MB | NPU
| face_detector | TFLITE | float | Qualcomm® SA8775P | 16.531 ms | 1 - 152 MB | NPU
| face_detector | TFLITE | float | Qualcomm® QCS9075 | 19.66 ms | 1 - 10 MB | NPU
| face_detector | TFLITE | float | Qualcomm® QCS8450 (Proxy) | 24.453 ms | 1 - 171 MB | NPU
| face_detector | TFLITE | float | Qualcomm® SA7255P | 28.26 ms | 1 - 150 MB | NPU
| face_detector | TFLITE | float | Qualcomm® SA8295P | 20.653 ms | 1 - 152 MB | NPU
| face_detector | TFLITE | float | Snapdragon® 8 Elite For Galaxy Mobile | 6.923 ms | 0 - 150 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.334 ms | 0 - 24 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® 8 Elite Mobile | 1.619 ms | 0 - 22 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® X2 Elite | 1.318 ms | 75 - 75 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® X Elite | 2.633 ms | 75 - 75 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® X Elite | 2.633 ms | 75 - 75 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® 8 Gen 3 Mobile | 2.059 ms | 0 - 35 MB | NPU
| pose_estimator | ONNX | float | Qualcomm® QCS8550 (Proxy) | 2.627 ms | 1 - 2 MB | NPU
| pose_estimator | ONNX | float | Qualcomm® QCS9075 | 4.551 ms | 0 - 4 MB | NPU
| pose_estimator | ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.619 ms | 0 - 22 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.417 ms | 1 - 29 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® 8 Elite Mobile | 1.682 ms | 0 - 26 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® X2 Elite | 1.487 ms | 1 - 1 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® X Elite | 2.864 ms | 1 - 1 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® X Elite | 2.864 ms | 1 - 1 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® 8 Gen 3 Mobile | 2.235 ms | 1 - 40 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® QCS8275 (Proxy) | 17.816 ms | 1 - 24 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® QCS8550 (Proxy) | 2.782 ms | 1 - 2 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® SA8775P | 4.813 ms | 1 - 26 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® SA8775P | 4.813 ms | 1 - 26 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® SA8775P | 4.813 ms | 1 - 26 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® QCS9075 | 4.904 ms | 3 - 5 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® QCS8450 (Proxy) | 6.543 ms | 0 - 39 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® SA7255P | 17.816 ms | 1 - 24 MB | NPU
| pose_estimator | QNN_DLC | float | Qualcomm® SA8295P | 5.398 ms | 1 - 23 MB | NPU
| pose_estimator | QNN_DLC | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.682 ms | 0 - 26 MB | NPU
| pose_estimator | TFLITE | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.374 ms | 0 - 28 MB | NPU
| pose_estimator | TFLITE | float | Snapdragon® 8 Elite Mobile | 1.701 ms | 0 - 30 MB | NPU
| pose_estimator | TFLITE | float | Snapdragon® 8 Gen 3 Mobile | 2.265 ms | 0 - 46 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® QCS8275 (Proxy) | 17.398 ms | 0 - 26 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® QCS8550 (Proxy) | 2.849 ms | 0 - 3 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® SA8775P | 4.813 ms | 0 - 27 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® SA8775P | 4.813 ms | 0 - 27 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® SA8775P | 4.813 ms | 0 - 27 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® QCS9075 | 4.74 ms | 0 - 78 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® QCS8450 (Proxy) | 6.502 ms | 0 - 43 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® SA7255P | 17.398 ms | 0 - 26 MB | NPU
| pose_estimator | TFLITE | float | Qualcomm® SA8295P | 5.349 ms | 0 - 28 MB | NPU
| pose_estimator | TFLITE | float | Snapdragon® 8 Elite For Galaxy Mobile | 1.701 ms | 0 - 30 MB | NPU
## License
* The license for the original implementation of SixDRepNet can be found
 [here](https://github.com/thohemp/6DRepNet/blob/master/LICENSE).
## References
* [6D Rotation Representation for Unconstrained Head Pose Estimation](https://arxiv.org/abs/2109.10948)
* [Source Model Implementation](https://github.com/thohemp/6DRepNet)
## Community
* Join [our AI Hub Slack community](https://aihub.qualcomm.com/community/slack) to collaborate, post questions and learn more about on-device AI.
* For questions or feedback please [reach out to us](mailto:ai-hub-support@qti.qualcomm.com).