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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 2.42, ONNX Runtime 1.24.3 Download
ONNX w8a8 Universal QAIRT 2.42, ONNX Runtime 1.24.3 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:

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

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Elite Gen 5 Mobile 3.495 ms 2 - 181 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Elite Mobile 6.402 ms 3 - 171 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® X2 Elite 3.606 ms 57 - 57 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® X Elite 9.06 ms 56 - 56 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® X Elite 9.06 ms 56 - 56 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Gen 3 Mobile 8.022 ms 7 - 227 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® QCS8550 (Proxy) 9.958 ms 0 - 60 MB NPU
FFNet-122NS-LowRes ONNX float Snapdragon® 8 Elite For Galaxy Mobile 6.402 ms 3 - 171 MB NPU
FFNet-122NS-LowRes ONNX float Qualcomm® QCS9075 10.207 ms 6 - 15 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Elite Gen 5 Mobile 1.323 ms 0 - 87 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Elite Mobile 1.465 ms 0 - 91 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® X2 Elite 1.278 ms 30 - 30 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® X Elite 2.818 ms 30 - 30 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® X Elite 2.818 ms 30 - 30 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Gen 3 Mobile 1.893 ms 0 - 151 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® QCS6490 91.923 ms 54 - 151 MB CPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® QCS8550 (Proxy) 2.611 ms 0 - 33 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 84.965 ms 67 - 82 MB CPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® QCM6690 85.867 ms 59 - 71 MB CPU
FFNet-122NS-LowRes ONNX w8a8 Qualcomm® QCS9075 3.128 ms 1 - 4 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 8 Elite For Galaxy Mobile 1.465 ms 0 - 91 MB NPU
FFNet-122NS-LowRes ONNX w8a8 Snapdragon® 7 Gen 4 Mobile 84.965 ms 67 - 82 MB CPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Elite Gen 5 Mobile 5.6 ms 6 - 170 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Elite Mobile 6.922 ms 6 - 168 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® X2 Elite 6.342 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® X Elite 13.295 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® X Elite 13.295 ms 6 - 6 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Gen 3 Mobile 8.803 ms 6 - 200 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® QCS8550 (Proxy) 13.049 ms 6 - 267 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8775P 15.998 ms 0 - 161 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8775P 15.998 ms 0 - 161 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8775P 15.998 ms 0 - 161 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA7255P 39.407 ms 1 - 160 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® QCS8450 (Proxy) 30.112 ms 6 - 194 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® SA8295P 18.02 ms 0 - 157 MB NPU
FFNet-122NS-LowRes QNN_DLC float Snapdragon® 8 Elite For Galaxy Mobile 6.922 ms 6 - 168 MB NPU
FFNet-122NS-LowRes QNN_DLC float Qualcomm® QCS9075 16.545 ms 6 - 14 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Gen 5 Mobile 1.919 ms 2 - 81 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite Mobile 2.224 ms 2 - 78 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® X2 Elite 2.145 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® X Elite 4.932 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® X Elite 4.932 ms 2 - 2 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Gen 3 Mobile 3.224 ms 2 - 129 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCS6490 13.614 ms 1 - 4 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCS8550 (Proxy) 4.614 ms 2 - 3 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 5.081 ms 2 - 80 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 5.081 ms 2 - 80 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8775P 5.081 ms 2 - 80 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 5.795 ms 2 - 194 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCM6690 27.688 ms 2 - 201 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCS9075 6.08 ms 1 - 4 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 8 Elite For Galaxy Mobile 2.224 ms 2 - 78 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® QCS8450 (Proxy) 6.622 ms 2 - 132 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA7255P 9.378 ms 2 - 77 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Qualcomm® SA8295P 6.141 ms 1 - 76 MB NPU
FFNet-122NS-LowRes QNN_DLC w8a8 Snapdragon® 7 Gen 4 Mobile 5.795 ms 2 - 194 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Elite Gen 5 Mobile 5.358 ms 1 - 191 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Elite Mobile 6.826 ms 1 - 195 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Gen 3 Mobile 8.596 ms 1 - 275 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® QCS8550 (Proxy) 12.813 ms 1 - 3 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8775P 16.185 ms 1 - 192 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8775P 16.185 ms 1 - 192 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8775P 16.185 ms 1 - 192 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA7255P 40.006 ms 1 - 190 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® QCS8450 (Proxy) 29.588 ms 1 - 270 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® SA8295P 17.927 ms 1 - 187 MB NPU
FFNet-122NS-LowRes TFLITE float Snapdragon® 8 Elite For Galaxy Mobile 6.826 ms 1 - 195 MB NPU
FFNet-122NS-LowRes TFLITE float Qualcomm® QCS9075 16.228 ms 0 - 71 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Elite Gen 5 Mobile 1.323 ms 0 - 76 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Elite Mobile 1.455 ms 0 - 75 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Gen 3 Mobile 1.894 ms 0 - 135 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCS6490 9.009 ms 0 - 35 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCS8550 (Proxy) 2.692 ms 0 - 2 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8775P 3.131 ms 0 - 75 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8775P 3.131 ms 0 - 75 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8775P 3.131 ms 0 - 75 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 3.988 ms 0 - 187 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCM6690 23.238 ms 0 - 198 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCS9075 3.12 ms 0 - 35 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 8 Elite For Galaxy Mobile 1.455 ms 0 - 75 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® QCS8450 (Proxy) 3.356 ms 0 - 137 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA7255P 6.059 ms 0 - 73 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Qualcomm® SA8295P 3.941 ms 0 - 69 MB NPU
FFNet-122NS-LowRes TFLITE w8a8 Snapdragon® 7 Gen 4 Mobile 3.988 ms 0 - 187 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