PidNet: Optimized for Qualcomm Devices

PIDNet (Proportional-Integral-Derivative Network) is a real-time semantic segmentation model based on PID controllers

This is based on the implementation of PidNet 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 1.25.0	Download
ONNX	w8a8	Universal	QAIRT 2.45, ONNX Runtime 1.25.0	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 PidNet 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 PidNet on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.semantic_segmentation

Model Stats:

Model checkpoint: PIDNet_S_Cityscapes_val.pt
Inference latency: RealTime
Input resolution: 1024x2048
Number of output classes: 19
Number of parameters: 8.06M
Model size (float): 29.1 MB
Model size (w8a8): 8.02 MB

Performance Summary

Model	Runtime	Precision	Chipset	Inference Time (ms)	Peak Memory Range (MB)	Primary Compute Unit
PidNet	ONNX	float	Snapdragon® X2 Elite	13.763 ms	189 - 189 MB	NPU
PidNet	ONNX	float	Snapdragon® X Elite	32.32 ms	158 - 158 MB	NPU
PidNet	ONNX	float	Snapdragon® 8 Gen 3 Mobile	22.916 ms	31 - 322 MB	NPU
PidNet	ONNX	float	Snapdragon® 8 Gen 1 Mobile	55.626 ms	29 - 324 MB	NPU
PidNet	ONNX	float	Qualcomm® QCS8550 (Proxy)	32.415 ms	24 - 51 MB	NPU
PidNet	ONNX	float	Qualcomm® QCS8450	55.626 ms	29 - 324 MB	NPU
PidNet	ONNX	float	Snapdragon® 8 Elite Mobile	17.854 ms	7 - 219 MB	NPU
PidNet	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	13.144 ms	5 - 250 MB	NPU
PidNet	ONNX	float	Qualcomm® QCS9075	47.664 ms	24 - 93 MB	NPU
PidNet	ONNX	float	Qualcomm® QCS8750	17.854 ms	7 - 219 MB	NPU
PidNet	ONNX	float	Qualcomm® QCS7181	32.32 ms	158 - 158 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® X2 Elite	25.958 ms	207 - 207 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® X Elite	54.825 ms	175 - 175 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® 8 Gen 3 Mobile	39.101 ms	7 - 261 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® 8 Gen 1 Mobile	57.664 ms	7 - 263 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS6490	132.062 ms	6 - 51 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS8550 (Proxy)	52.469 ms	0 - 19 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS8450	57.664 ms	7 - 263 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	25.794 ms	2 - 232 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCM6690	215.567 ms	7 - 222 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS9075	54.995 ms	4 - 51 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® 8 Elite Mobile	45.245 ms	2 - 219 MB	NPU
PidNet	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	61.984 ms	7 - 232 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS7790	61.984 ms	7 - 232 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS8750	45.245 ms	2 - 219 MB	NPU
PidNet	ONNX	w8a8	Qualcomm® QCS7181	54.825 ms	175 - 175 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® X2 Elite	13.6 ms	24 - 24 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® X Elite	39.147 ms	24 - 24 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	25.783 ms	23 - 327 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	75.878 ms	24 - 331 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS8275	117.745 ms	24 - 243 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS8550 (Proxy)	37.694 ms	24 - 26 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS8450	75.878 ms	24 - 331 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® 8 Elite Mobile	18.292 ms	23 - 269 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® SA8295P	52.014 ms	24 - 252 MB	NPU
PidNet	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	11.969 ms	18 - 291 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® SA7255P	117.745 ms	24 - 243 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS9075	61.104 ms	26 - 54 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS8750	18.292 ms	23 - 269 MB	NPU
PidNet	QNN_DLC	float	Qualcomm® QCS7181	39.147 ms	24 - 24 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® X2 Elite	25.202 ms	6 - 6 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® X Elite	60.613 ms	6 - 6 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® 8 Gen 3 Mobile	43.114 ms	6 - 266 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® 8 Gen 1 Mobile	63.839 ms	6 - 269 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS8275	111.317 ms	6 - 219 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS8550 (Proxy)	57.755 ms	6 - 158 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS8450	63.839 ms	6 - 269 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	24.591 ms	6 - 273 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS9075	61.722 ms	6 - 14 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® SA7255P	111.317 ms	6 - 219 MB	NPU
PidNet	QNN_DLC	w8a8	Snapdragon® 8 Elite Mobile	43.837 ms	6 - 244 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® SA8295P	66.422 ms	6 - 223 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS8750	43.837 ms	6 - 244 MB	NPU
PidNet	QNN_DLC	w8a8	Qualcomm® QCS7181	60.613 ms	6 - 6 MB	NPU
PidNet	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	24.938 ms	2 - 325 MB	NPU
PidNet	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	73.971 ms	4 - 330 MB	NPU
PidNet	TFLITE	float	Qualcomm® QCS8275	116.592 ms	3 - 232 MB	NPU
PidNet	TFLITE	float	Qualcomm® QCS8550 (Proxy)	36.097 ms	2 - 172 MB	NPU
PidNet	TFLITE	float	Qualcomm® SA8775P	141.849 ms	3 - 32 MB	GPU
PidNet	TFLITE	float	Qualcomm® SA8650P	141.849 ms	3 - 32 MB	GPU
PidNet	TFLITE	float	Qualcomm® SA8255P	141.849 ms	3 - 32 MB	GPU
PidNet	TFLITE	float	Qualcomm® QCS8450	73.971 ms	4 - 330 MB	NPU
PidNet	TFLITE	float	Snapdragon® 8 Elite Mobile	18.758 ms	2 - 252 MB	NPU
PidNet	TFLITE	float	Qualcomm® SA8295P	51.03 ms	3 - 245 MB	NPU
PidNet	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	12.676 ms	2 - 273 MB	NPU
PidNet	TFLITE	float	Qualcomm® SA7255P	116.592 ms	3 - 232 MB	NPU
PidNet	TFLITE	float	Qualcomm® QCS9075	59.506 ms	0 - 45 MB	NPU
PidNet	TFLITE	float	Qualcomm® QCS8750	18.758 ms	2 - 252 MB	NPU
PidNet	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	37.894 ms	1 - 265 MB	NPU
PidNet	TFLITE	w8a8	Snapdragon® 8 Gen 1 Mobile	58.239 ms	1 - 265 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS6490	185.168 ms	2 - 71 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS8275	98.412 ms	1 - 214 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS8550 (Proxy)	50.392 ms	1 - 3 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® SA8775P	148.903 ms	27 - 58 MB	GPU
PidNet	TFLITE	w8a8	Qualcomm® SA8650P	148.903 ms	27 - 58 MB	GPU
PidNet	TFLITE	w8a8	Qualcomm® SA8255P	148.903 ms	27 - 58 MB	GPU
PidNet	TFLITE	w8a8	Qualcomm® QCS8450	58.239 ms	1 - 265 MB	NPU
PidNet	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	22.081 ms	0 - 267 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCM6690	236.112 ms	3 - 234 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS9075	53.51 ms	1 - 17 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® SA7255P	98.412 ms	1 - 214 MB	NPU
PidNet	TFLITE	w8a8	Snapdragon® 8 Elite Mobile	69.966 ms	1 - 234 MB	NPU
PidNet	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	66.736 ms	5 - 223 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® SA8295P	57.998 ms	1 - 218 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS7790	66.736 ms	5 - 223 MB	NPU
PidNet	TFLITE	w8a8	Qualcomm® QCS8750	69.966 ms	1 - 234 MB	NPU

License

The license for the original implementation of PidNet can be found here.

References

Community

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Paper for qualcomm/PidNet

PIDNet: A Real-time Semantic Segmentation Network Inspired by PID Controllers

Paper • 2206.02066 • Published Jun 4, 2022