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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 2.45, ONNX Runtime 1.27.1 Download
ONNX w8a8 Universal QAIRT 2.45, ONNX Runtime 1.27.1 Download
QNN_DLC float Universal QAIRT 2.45 Download
QNN_DLC w8a8 Universal QAIRT 2.45 Download
TFLITE float Universal QAIRT 2.45 Download
TFLITE w8a8 Universal QAIRT 2.45 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® X2 Elite 35.709 ms 10 - 10 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® X Elite 20.101 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 15.193 ms 2 - 251 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 1 Mobile 35.842 ms 11 - 243 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-8275 39.359 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 20.029 ms 0 - 52 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® QCS8450 35.842 ms 11 - 243 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-9075 35.717 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-X7181 20.101 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ Q-8750 13.372 ms 8 - 194 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Mobile 13.372 ms 8 - 194 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Gen 5 Mobile 8.202 ms 8 - 196 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X2 Elite 2.719 ms 4 - 4 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X Elite 5.862 ms 25 - 25 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 3.969 ms 3 - 257 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 8.17 ms 3 - 256 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 28.757 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 5.94 ms 2 - 6 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.571 ms 0 - 28 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® QCS8450 8.17 ms 3 - 256 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 5.781 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 5.862 ms 25 - 25 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 105.84 ms 3 - 263 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 12.354 ms 3 - 215 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 3.047 ms 0 - 195 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Mobile 3.047 ms 0 - 195 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.31 ms 0 - 205 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 12.354 ms 3 - 215 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X2 Elite 36.31 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X Elite 22.73 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 15.743 ms 6 - 246 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 1 Mobile 42.173 ms 6 - 235 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 40.132 ms 6 - 17 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.647 ms 6 - 271 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8775P 36.276 ms 1 - 183 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 42.173 ms 6 - 235 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 36.204 ms 8 - 18 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 22.73 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ Q-8750 14.261 ms 6 - 196 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA7255P 131.844 ms 2 - 184 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8295P 38.171 ms 0 - 177 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Mobile 14.261 ms 6 - 196 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 8.57 ms 6 - 202 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 3.442 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X Elite 7.657 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 4.879 ms 0 - 128 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 8.581 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 31.069 ms 0 - 4 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 7.402 ms 2 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.007 ms 2 - 4 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 7.375 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8650P 7.375 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8255P 7.375 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 8.581 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 7.115 ms 3 - 7 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 7.657 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 108.362 ms 2 - 205 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 13.535 ms 2 - 216 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 3.537 ms 2 - 189 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA7255P 20.488 ms 2 - 80 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 11.568 ms 1 - 77 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 3.537 ms 2 - 189 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.687 ms 2 - 200 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 13.535 ms 2 - 216 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 15.704 ms 2 - 320 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 1 Mobile 42.189 ms 3 - 310 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 40.017 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.64 ms 2 - 5 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8775P 36.349 ms 0 - 215 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 42.189 ms 3 - 310 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-9075 36.233 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ Q-8750 14.556 ms 2 - 226 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA7255P 131.865 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8295P 38.244 ms 3 - 214 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Mobile 14.556 ms 2 - 226 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 8.581 ms 2 - 227 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 3.618 ms 1 - 131 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 6.744 ms 1 - 133 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 26.769 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 5.766 ms 1 - 32 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.972 ms 1 - 3 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8775P 5.497 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8650P 5.497 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8255P 5.497 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® QCS8450 6.744 ms 1 - 133 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 5.261 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 100.913 ms 1 - 201 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 11.704 ms 1 - 211 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 2.796 ms 0 - 187 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA7255P 17.357 ms 1 - 78 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8295P 9.623 ms 1 - 75 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Mobile 2.796 ms 0 - 187 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.122 ms 0 - 195 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 11.704 ms 1 - 211 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