Image Segmentation
PyTorch
real_time
android

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 10.083 ms 10 - 10 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® X Elite 20.084 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 15.269 ms 4 - 252 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Gen 1 Mobile 36.559 ms 11 - 244 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-8275 39.714 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 20.167 ms 0 - 285 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® QCS8450 36.559 ms 11 - 244 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-9075 35.484 ms 6 - 15 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ IQ-X7181 20.084 ms 47 - 47 MB NPU
FFNet-78S-LowRes ONNX float Qualcomm® Dragonwing™ Q-8750 13.341 ms 7 - 193 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Mobile 13.341 ms 7 - 193 MB NPU
FFNet-78S-LowRes ONNX float Snapdragon® 8 Elite Gen 5 Mobile 8.209 ms 5 - 194 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X2 Elite 2.723 ms 4 - 4 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® X Elite 5.814 ms 26 - 26 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 3.962 ms 3 - 253 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 8.276 ms 0 - 252 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 28.141 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 5.946 ms 2 - 6 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.571 ms 0 - 29 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® QCS8450 8.276 ms 0 - 252 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 5.779 ms 2 - 5 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 5.814 ms 26 - 26 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 104.754 ms 0 - 260 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 12.351 ms 3 - 215 MB NPU
FFNet-78S-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 3.04 ms 3 - 197 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Mobile 3.04 ms 3 - 197 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.311 ms 0 - 203 MB NPU
FFNet-78S-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 12.351 ms 3 - 215 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X2 Elite 15.739 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® X Elite 22.534 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 15.775 ms 6 - 245 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Gen 1 Mobile 42.283 ms 6 - 235 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 40.107 ms 6 - 17 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 131.73 ms 1 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.913 ms 6 - 8 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8775P 36.287 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8650P 36.287 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8255P 36.287 ms 0 - 182 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® QCS8450 42.283 ms 6 - 235 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 37.192 ms 8 - 18 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 22.534 ms 6 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® Dragonwing™ Q-8750 14.473 ms 0 - 190 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA7255P 131.73 ms 1 - 183 MB NPU
FFNet-78S-LowRes QNN_DLC float Qualcomm® SA8295P 38.201 ms 0 - 177 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Mobile 14.473 ms 0 - 190 MB NPU
FFNet-78S-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 8.413 ms 6 - 202 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 3.448 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® X Elite 7.681 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 4.876 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 8.564 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 31.004 ms 1 - 5 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 7.393 ms 2 - 6 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 20.493 ms 2 - 80 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 6.996 ms 2 - 3 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 7.379 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8650P 7.379 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8255P 7.379 ms 2 - 82 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 8.564 ms 2 - 131 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 7.156 ms 1 - 5 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 7.681 ms 2 - 2 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 108.08 ms 2 - 205 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 13.638 ms 2 - 214 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 3.528 ms 2 - 191 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA7255P 20.493 ms 2 - 80 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 11.622 ms 1 - 77 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 3.528 ms 2 - 191 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.691 ms 2 - 198 MB NPU
FFNet-78S-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 13.638 ms 2 - 214 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 15.714 ms 2 - 322 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Gen 1 Mobile 41.838 ms 3 - 311 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 40.244 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 131.834 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 21.671 ms 2 - 5 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8775P 36.337 ms 3 - 219 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8650P 36.337 ms 3 - 219 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8255P 36.337 ms 3 - 219 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® QCS8450 41.838 ms 3 - 311 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-9075 36.877 ms 0 - 63 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® Dragonwing™ Q-8750 14.585 ms 1 - 226 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA7255P 131.834 ms 3 - 218 MB NPU
FFNet-78S-LowRes TFLITE float Qualcomm® SA8295P 38.258 ms 2 - 214 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Mobile 14.585 ms 1 - 226 MB NPU
FFNet-78S-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 8.586 ms 0 - 225 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 3.606 ms 1 - 131 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 6.732 ms 1 - 135 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 26.685 ms 1 - 31 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 5.757 ms 1 - 32 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 17.355 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.985 ms 0 - 2 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8775P 5.502 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8650P 5.502 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8255P 5.502 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® QCS8450 6.732 ms 1 - 135 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 5.288 ms 0 - 30 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 102.461 ms 0 - 201 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 11.776 ms 1 - 211 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 2.797 ms 0 - 188 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA7255P 17.355 ms 1 - 79 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Qualcomm® SA8295P 9.621 ms 1 - 74 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Mobile 2.797 ms 0 - 188 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.128 ms 0 - 194 MB NPU
FFNet-78S-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 11.776 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