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FFNet-78S-LowRes

Image Segmentation
PyTorch
real_time
android
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FFNet-78S-LowRes: Optimized for Qualcomm Devices

FFNet-78S-LowRes is a "fuss-free network" that segments street scene images with per-pixel classes like road, sidewalk, and pedestrian. Trained on the Cityscapes dataset.

This is based on the implementation of FFNet-78S-LowRes found here. This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the Qualcomm® AI Hub Models library to export with custom configurations. More details on model performance across various devices, can be found here.

Qualcomm AI Hub Models uses Qualcomm AI Hub Workbench to compile, profile, and evaluate this model. Sign up 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 2.50, ONNX Runtime 1.27.1 Download
ONNX w8a8 Universal QAIRT 2.50, ONNX Runtime 1.27.1 Download
QNN_DLC float Universal QAIRT 2.50 Download
QNN_DLC w8a8 Universal QAIRT 2.50 Download
TFLITE float Universal QAIRT 2.50 Download
TFLITE w8a8 Universal QAIRT 2.50 Download

For more device-specific assets and performance metrics, visit FFNet-78S-LowRes on Qualcomm® AI Hub.

Option 2: Export with Custom Configurations

Use the Qualcomm® AI Hub Models 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 FFNet-78S-LowRes on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.semantic_segmentation

Model Stats:

  • Input resolution: 1024x512
  • Model checkpoint: ffnet78S_BCC_cityscapes_state_dict_quarts_pre_down
  • Model size (float): 102 MB
  • Model size (w8a8): 26.0 MB
  • Number of output classes: 19
  • Number of parameters: 26.8M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 8.291 ms 8 - 186 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite For Galaxy Mobile 10.686 ms 5 - 183 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® X2 Elite 10.081 ms 10 - 10 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® X Elite 19.153 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 13.444 ms 14 - 249 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 1 Mobile 33.496 ms 11 - 238 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-8275 37.454 ms 6 - 16 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 18.562 ms 8 - 12 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® QCS8450 33.496 ms 11 - 238 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-9075 33.892 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-X7181 19.153 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ Q-8750 10.686 ms 5 - 183 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.265 ms 0 - 195 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite For Galaxy Mobile 3.046 ms 0 - 192 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X2 Elite 2.696 ms 4 - 4 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X Elite 5.759 ms 26 - 26 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 3.861 ms 3 - 251 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 6.791 ms 3 - 249 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 24.895 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 6.058 ms 2 - 6 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.452 ms 0 - 170 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® QCS8450 6.791 ms 3 - 249 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 5.509 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 5.759 ms 26 - 26 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 101.256 ms 3 - 206 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 12.281 ms 3 - 210 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 3.046 ms 0 - 192 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 12.281 ms 3 - 210 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 10.969 ms 6 - 195 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite For Galaxy Mobile 11.274 ms 6 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X2 Elite 12.234 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X Elite 22.251 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 18.026 ms 6 - 239 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 1 Mobile 35.149 ms 6 - 227 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 40.321 ms 6 - 17 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.388 ms 6 - 8 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8650P 36.276 ms 1 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8255P 36.276 ms 1 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® QCS8450 35.149 ms 6 - 227 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 35.718 ms 6 - 17 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 22.251 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ Q-8750 11.274 ms 6 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8295P 38.125 ms 0 - 172 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.663 ms 2 - 191 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite For Galaxy Mobile 3.515 ms 2 - 185 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 3.413 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X Elite 7.611 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 4.935 ms 2 - 130 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 8.415 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 26.266 ms 4 - 8 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 7.444 ms 2 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 6.993 ms 2 - 3 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 7.406 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8650P 7.406 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8255P 7.406 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 8.415 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 7.18 ms 4 - 8 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 7.611 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 107.505 ms 2 - 196 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 13.284 ms 2 - 209 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 3.515 ms 2 - 185 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 11.444 ms 0 - 76 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 13.284 ms 2 - 209 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 10.965 ms 2 - 223 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite For Galaxy Mobile 11.391 ms 2 - 211 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 17.997 ms 1 - 315 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 1 Mobile 35.037 ms 3 - 303 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 40.15 ms 0 - 64 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.231 ms 2 - 4 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8650P 36.349 ms 0 - 215 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8255P 36.349 ms 0 - 215 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® QCS8450 35.037 ms 3 - 303 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-9075 36.18 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ Q-8750 11.391 ms 2 - 211 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8295P 38.126 ms 3 - 208 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.086 ms 0 - 188 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite For Galaxy Mobile 2.779 ms 0 - 181 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 3.666 ms 1 - 135 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 6.505 ms 1 - 134 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 22.319 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 5.832 ms 1 - 32 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.037 ms 1 - 3 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8775P 5.501 ms 1 - 80 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8650P 5.501 ms 1 - 80 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8255P 5.501 ms 1 - 80 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® QCS8450 6.505 ms 1 - 134 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 5.314 ms 0 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 101.328 ms 1 - 194 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 11.655 ms 1 - 201 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 2.779 ms 0 - 181 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA7255P 422.524 ms 9 - 38 MB GPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8295P 9.435 ms 1 - 75 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 11.655 ms 1 - 201 MB NPU

License

  • The license for the original implementation of FFNet-78S-LowRes can be found here.

References

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Paper for qualcomm/FFNet-78S-LowRes