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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:

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

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
FFNet-78S-LowRes ONNX float Snapdragon® X2 Elite 10.048 ms 10 - 10 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® X Elite 19.992 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 15.374 ms 1 - 249 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 1 Mobile 35.93 ms 11 - 242 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 20.01 ms 0 - 56 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® QCS8450 35.93 ms 11 - 242 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-9075 35.281 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-X7181 19.992 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ Q-8750 13.246 ms 8 - 192 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Mobile 13.246 ms 8 - 192 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Gen 5 Mobile 8.206 ms 5 - 191 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X2 Elite 2.712 ms 4 - 4 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X Elite 5.849 ms 25 - 25 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 3.966 ms 3 - 253 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 8.231 ms 0 - 254 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 28.172 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.564 ms 0 - 29 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® QCS8450 8.231 ms 0 - 254 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 5.77 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 5.849 ms 25 - 25 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 3.048 ms 0 - 196 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Mobile 3.048 ms 0 - 196 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.31 ms 0 - 204 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X2 Elite 11.002 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X Elite 22.456 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 15.761 ms 6 - 246 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 1 Mobile 41.721 ms 6 - 234 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8275 131.866 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.682 ms 6 - 8 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8775P 36.27 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8650P 36.27 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8255P 36.27 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® QCS8450 41.721 ms 6 - 234 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 36.165 ms 6 - 16 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 22.456 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ Q-8750 14.544 ms 6 - 198 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA7255P 131.866 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8295P 38.178 ms 0 - 178 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Mobile 14.544 ms 6 - 198 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 8.573 ms 6 - 201 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 3.506 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X Elite 7.654 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 4.883 ms 2 - 129 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 8.534 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 31.093 ms 4 - 7 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8275 20.515 ms 2 - 80 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.009 ms 2 - 145 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 7.389 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8650P 7.389 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8255P 7.389 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 8.534 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 7.921 ms 0 - 4 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 7.654 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 102.066 ms 2 - 203 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 13.533 ms 2 - 216 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 3.54 ms 2 - 191 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA7255P 20.515 ms 2 - 80 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 11.597 ms 1 - 77 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 3.54 ms 2 - 191 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.688 ms 2 - 198 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 13.533 ms 2 - 216 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 15.807 ms 1 - 319 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 1 Mobile 41.894 ms 2 - 310 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8275 131.968 ms 3 - 217 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.866 ms 2 - 5 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8775P 36.329 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8650P 36.329 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8255P 36.329 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® QCS8450 41.894 ms 2 - 310 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-9075 36.178 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ Q-8750 14.593 ms 2 - 227 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA7255P 131.968 ms 3 - 217 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8295P 38.261 ms 3 - 214 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Mobile 14.593 ms 2 - 227 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 8.576 ms 2 - 228 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 3.623 ms 1 - 131 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 6.839 ms 0 - 134 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 26.497 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8275 17.321 ms 1 - 77 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.984 ms 1 - 3 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8775P 5.523 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8650P 5.523 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8255P 5.523 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® QCS8450 6.839 ms 0 - 134 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 5.277 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 100.401 ms 1 - 201 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 11.706 ms 1 - 211 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 2.798 ms 0 - 188 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA7255P 17.321 ms 1 - 77 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8295P 9.573 ms 1 - 74 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Mobile 2.798 ms 0 - 188 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.121 ms 0 - 194 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 11.706 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