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metadata 
library_name: pytorch
license: other
tags:
  - android
pipeline_tag: image-segmentation

FFNet-78S: Optimized for Qualcomm Devices

FFNet-78S 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 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 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 on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.semantic_segmentation

Model Stats:

  • Input resolution: 2048x1024
  • Model checkpoint: ffnet78S_dBBB_cityscapes_state_dict_quarts
  • Model size (float): 105 MB
  • Model size (w8a8): 26.7 MB
  • Number of output classes: 19
  • Number of parameters: 27.5M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
FFNet-78S ONNX float Snapdragon® X2 Elite 18.406 ms 24 - 24 MB NPU
FFNet-78S ONNX float Snapdragon® X Elite 37.496 ms 31 - 31 MB NPU
FFNet-78S ONNX float Snapdragon® 8 Gen 3 Mobile 27.346 ms 0 - 316 MB NPU
FFNet-78S ONNX float Snapdragon® 8 Gen 1 Mobile 60.18 ms 13 - 296 MB NPU
FFNet-78S ONNX float Qualcomm® Dragonwing™ IQ-8275 58.076 ms 24 - 51 MB NPU
FFNet-78S ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 38.642 ms 24 - 54 MB NPU
FFNet-78S ONNX float Qualcomm® QCS8450 60.18 ms 13 - 296 MB NPU
FFNet-78S ONNX float Qualcomm® Dragonwing™ IQ-9075 61.637 ms 24 - 51 MB NPU
FFNet-78S ONNX float Qualcomm® Dragonwing™ IQ-X7181 37.496 ms 31 - 31 MB NPU
FFNet-78S ONNX float Qualcomm® Dragonwing™ Q-8750 21.651 ms 8 - 207 MB NPU
FFNet-78S ONNX float Snapdragon® 8 Elite Mobile 21.651 ms 8 - 207 MB NPU
FFNet-78S ONNX float Snapdragon® 8 Elite Gen 5 Mobile 17.798 ms 6 - 229 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® X2 Elite 9.31 ms 7 - 7 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® X Elite 13.6 ms 22 - 22 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 8.551 ms 7 - 301 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 17.807 ms 8 - 301 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 57.086 ms 6 - 9 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 12.802 ms 6 - 10 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 12.838 ms 0 - 24 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® QCS8450 17.807 ms 8 - 301 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 13.501 ms 6 - 9 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 13.6 ms 22 - 22 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 150.009 ms 6 - 237 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 17.779 ms 7 - 257 MB NPU
FFNet-78S ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 8.741 ms 1 - 216 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® 8 Elite Mobile 8.741 ms 1 - 216 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 7.413 ms 2 - 219 MB NPU
FFNet-78S ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 17.779 ms 7 - 257 MB NPU
FFNet-78S QNN_DLC float Snapdragon® X2 Elite 17.97 ms 24 - 24 MB NPU
FFNet-78S QNN_DLC float Snapdragon® X Elite 44.558 ms 24 - 24 MB NPU
FFNet-78S QNN_DLC float Snapdragon® 8 Gen 3 Mobile 29.695 ms 19 - 315 MB NPU
FFNet-78S QNN_DLC float Snapdragon® 8 Gen 1 Mobile 85.9 ms 5 - 286 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 62.48 ms 24 - 53 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 187.969 ms 24 - 234 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 42.756 ms 24 - 35 MB NPU
FFNet-78S QNN_DLC float Qualcomm® SA8775P 60.877 ms 24 - 234 MB NPU
FFNet-78S QNN_DLC float Qualcomm® SA8650P 60.877 ms 24 - 234 MB NPU
FFNet-78S QNN_DLC float Qualcomm® SA8255P 60.877 ms 24 - 234 MB NPU
FFNet-78S QNN_DLC float Qualcomm® QCS8450 85.9 ms 5 - 286 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 61.367 ms 24 - 52 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 44.558 ms 24 - 24 MB NPU
FFNet-78S QNN_DLC float Qualcomm® Dragonwing™ Q-8750 21.74 ms 12 - 238 MB NPU
FFNet-78S QNN_DLC float Qualcomm® SA7255P 187.969 ms 24 - 234 MB NPU
FFNet-78S QNN_DLC float Qualcomm® SA8295P 66.507 ms 24 - 228 MB NPU
FFNet-78S QNN_DLC float Snapdragon® 8 Elite Mobile 21.74 ms 12 - 238 MB NPU
FFNet-78S QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 15.635 ms 14 - 267 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® X2 Elite 6.977 ms 6 - 6 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® X Elite 17.785 ms 6 - 6 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 11.613 ms 6 - 290 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 23.625 ms 6 - 292 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 63.946 ms 3 - 12 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 39.091 ms 6 - 226 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 16.776 ms 6 - 8 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® SA8775P 17.186 ms 6 - 226 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® SA8650P 17.186 ms 6 - 226 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® SA8255P 17.186 ms 6 - 226 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® QCS8450 23.625 ms 6 - 292 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 17.446 ms 8 - 16 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 17.785 ms 6 - 6 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 166.357 ms 6 - 256 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 22.32 ms 6 - 243 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 8.055 ms 0 - 231 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® SA7255P 39.091 ms 6 - 226 MB NPU
FFNet-78S QNN_DLC w8a8 Qualcomm® SA8295P 23.333 ms 6 - 227 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 8.055 ms 0 - 231 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 5.967 ms 6 - 251 MB NPU
FFNet-78S QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 22.32 ms 6 - 243 MB NPU
FFNet-78S TFLITE float Snapdragon® 8 Gen 3 Mobile 29.431 ms 1 - 377 MB NPU
FFNet-78S TFLITE float Snapdragon® 8 Gen 1 Mobile 86.118 ms 3 - 363 MB NPU
FFNet-78S TFLITE float Qualcomm® Dragonwing™ IQ-8275 62.554 ms 0 - 83 MB NPU
FFNet-78S TFLITE float Qualcomm® Dragonwing™ IQ-8275 188.047 ms 3 - 245 MB NPU
FFNet-78S TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 42.889 ms 3 - 5 MB NPU
FFNet-78S TFLITE float Qualcomm® SA8775P 60.992 ms 3 - 245 MB NPU
FFNet-78S TFLITE float Qualcomm® SA8650P 60.992 ms 3 - 245 MB NPU
FFNet-78S TFLITE float Qualcomm® SA8255P 60.992 ms 3 - 245 MB NPU
FFNet-78S TFLITE float Qualcomm® QCS8450 86.118 ms 3 - 363 MB NPU
FFNet-78S TFLITE float Qualcomm® Dragonwing™ IQ-9075 67.349 ms 0 - 82 MB NPU
FFNet-78S TFLITE float Qualcomm® Dragonwing™ Q-8750 21.727 ms 2 - 258 MB NPU
FFNet-78S TFLITE float Qualcomm® SA7255P 188.047 ms 3 - 245 MB NPU
FFNet-78S TFLITE float Qualcomm® SA8295P 66.385 ms 3 - 239 MB NPU
FFNet-78S TFLITE float Snapdragon® 8 Elite Mobile 21.727 ms 2 - 258 MB NPU
FFNet-78S TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 15.675 ms 0 - 281 MB NPU
FFNet-78S TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 6.43 ms 1 - 287 MB NPU
FFNet-78S TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 18.283 ms 1 - 291 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 49.896 ms 1 - 36 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 9.77 ms 1 - 37 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 26.206 ms 1 - 218 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 9.063 ms 1 - 3 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® SA8775P 9.739 ms 1 - 219 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® SA8650P 9.739 ms 1 - 219 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® SA8255P 9.739 ms 1 - 219 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® QCS8450 18.283 ms 1 - 291 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 9.462 ms 1 - 36 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 139.928 ms 1 - 246 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 14.724 ms 1 - 234 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 5.036 ms 1 - 231 MB NPU
FFNet-78S TFLITE w8a8 Qualcomm® SA7255P 26.206 ms 1 - 218 MB NPU
FFNet-78S TFLITE w8a8 Snapdragon® 8 Elite Mobile 5.036 ms 1 - 231 MB NPU
FFNet-78S TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 3.654 ms 1 - 243 MB NPU
FFNet-78S TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 14.724 ms 1 - 234 MB NPU

License

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

References

Community