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FFNet-122NS-LowRes

Image Segmentation
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FFNet-122NS-LowRes: Optimized for Qualcomm Devices

FFNet-122NS-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-122NS-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-122NS-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-122NS-LowRes on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.semantic_segmentation

Model Stats:

  • Input resolution: 1024x512
  • Model checkpoint: ffnet122NS_CCC_cityscapes_state_dict_quarts_pre_down
  • Model size (float): 123 MB
  • Model size (w8a8): 31.3 MB
  • Number of output classes: 19
  • Number of parameters: 32.1M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
FFNet-122NS-LowRes ONNX float Snapdragon® X2 Elite 7.348 ms 10 - 10 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® X Elite 14.819 ms 57 - 57 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 11.188 ms 1 - 250 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Gen 1 Mobile 26.9 ms 3 - 235 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® Dragonwing™ IQ-8275 27.552 ms 6 - 15 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® Dragonwing™ QCS8550 (Proxy) 14.781 ms 0 - 74 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® QCS8450 26.9 ms 3 - 235 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® Dragonwing™ IQ-9075 26.852 ms 6 - 15 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® Dragonwing™ IQ-X7181 14.819 ms 57 - 57 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® Dragonwing™ Q-8750 9.811 ms 6 - 194 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Elite Mobile 9.811 ms 6 - 194 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Elite Gen 5 Mobile 6.108 ms 5 - 195 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® X2 Elite 2.011 ms 4 - 4 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® X Elite 4.505 ms 31 - 31 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 2.997 ms 0 - 292 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Gen 1 Mobile 6.175 ms 3 - 295 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS6490 26.216 ms 2 - 5 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-8275 4.733 ms 2 - 6 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 4.295 ms 0 - 33 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® QCS8450 6.175 ms 3 - 295 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-9075 4.514 ms 2 - 5 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ IQ-X7181 4.505 ms 31 - 31 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-6690 77.88 ms 0 - 235 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-7790 9.507 ms 3 - 223 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® Dragonwing™ Q-8750 2.356 ms 0 - 217 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Elite Mobile 2.356 ms 0 - 217 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 1.787 ms 1 - 224 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 9.507 ms 3 - 223 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® X2 Elite 8.058 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® X Elite 17.445 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 11.553 ms 40 - 275 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Gen 1 Mobile 31.321 ms 6 - 231 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 28.204 ms 6 - 17 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-8275 89.215 ms 1 - 183 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ QCS8550 (Proxy) 16.625 ms 6 - 250 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8775P 25.882 ms 0 - 182 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8650P 25.882 ms 0 - 182 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8255P 25.882 ms 0 - 182 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® QCS8450 31.321 ms 6 - 231 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-9075 26.33 ms 6 - 16 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ IQ-X7181 17.445 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® Dragonwing™ Q-8750 8.356 ms 6 - 196 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA7255P 89.215 ms 1 - 183 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8295P 27.704 ms 0 - 176 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Elite Mobile 8.356 ms 6 - 196 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 6.149 ms 6 - 204 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 2.784 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® X Elite 6.35 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 4.044 ms 2 - 156 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 1 Mobile 7.055 ms 2 - 159 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS6490 25.406 ms 2 - 5 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 6.037 ms 2 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-8275 15.68 ms 2 - 98 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 5.757 ms 2 - 4 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 6.223 ms 2 - 99 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8650P 6.223 ms 2 - 99 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8255P 6.223 ms 2 - 99 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 7.055 ms 2 - 159 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-9075 5.963 ms 1 - 5 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ IQ-X7181 6.35 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-6690 77.288 ms 2 - 212 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-7790 10.859 ms 2 - 220 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® Dragonwing™ Q-8750 2.86 ms 2 - 209 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA7255P 15.68 ms 2 - 98 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 9.192 ms 2 - 96 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 2.86 ms 2 - 209 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 2.19 ms 2 - 215 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 10.859 ms 2 - 220 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 11.543 ms 2 - 313 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Gen 1 Mobile 31.545 ms 3 - 301 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 28.176 ms 0 - 73 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-8275 89.224 ms 3 - 216 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® Dragonwing™ QCS8550 (Proxy) 16.605 ms 2 - 5 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8775P 25.916 ms 3 - 217 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8650P 25.916 ms 3 - 217 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8255P 25.916 ms 3 - 217 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® QCS8450 31.545 ms 3 - 301 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® Dragonwing™ IQ-9075 26.379 ms 0 - 73 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® Dragonwing™ Q-8750 8.385 ms 1 - 223 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA7255P 89.224 ms 3 - 216 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8295P 27.782 ms 2 - 210 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Elite Mobile 8.385 ms 1 - 223 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 6.263 ms 2 - 225 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 2.757 ms 0 - 162 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Gen 1 Mobile 5.369 ms 1 - 162 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS6490 20.951 ms 1 - 36 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 4.374 ms 1 - 37 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-8275 12.458 ms 1 - 94 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.828 ms 1 - 3 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8775P 4.359 ms 1 - 96 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8650P 4.359 ms 1 - 96 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8255P 4.359 ms 1 - 96 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCS8450 5.369 ms 1 - 162 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ IQ-9075 4.115 ms 0 - 35 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-6690 74.474 ms 1 - 205 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-7790 9.093 ms 1 - 215 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® Dragonwing™ Q-8750 2.095 ms 0 - 205 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA7255P 12.458 ms 1 - 94 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8295P 7.04 ms 1 - 92 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Elite Mobile 2.095 ms 0 - 205 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 1.582 ms 0 - 210 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 9.093 ms 1 - 215 MB NPU

License

  • The license for the original implementation of FFNet-122NS-LowRes can be found here.

References

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Paper for qualcomm/FFNet-122NS-LowRes