Fast Segment Anything
Paper
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2306.12156
•
Published
•
35
FastSam-S: Optimized for Mobile Deployment
Generate high quality segmentation mask on device
The Fast Segment Anything Model (FastSAM) is a novel, real-time CNN-based solution for the Segment Anything task. This task is designed to segment any object within an image based on various possible user interaction prompts. The model performs competitively despite significantly reduced computation, making it a practical choice for a variety of vision tasks.
This model is an implementation of FastSam-S found here.
This repository provides scripts to run FastSam-S on Qualcomm® devices. More details on model performance across various devices, can be found here.
Model Details
- Model Type: Model_use_case.semantic_segmentation
- Model Stats:
- Model checkpoint: fastsam-s.pt
- Inference latency: RealTime
- Input resolution: 640x640
- Number of parameters: 11.8M
- Model size (float): 45.1 MB
| Model | Precision | Device | Chipset | Target Runtime | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit | Target Model |
|---|---|---|---|---|---|---|---|---|
| FastSam-S | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | TFLITE | 37.745 ms | 4 - 243 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | QCS8275 (Proxy) | Qualcomm® QCS8275 (Proxy) | QNN_DLC | 37.787 ms | 5 - 232 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | TFLITE | 16.036 ms | 4 - 215 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | QCS8450 (Proxy) | Qualcomm® QCS8450 (Proxy) | QNN_DLC | 16.91 ms | 5 - 199 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | TFLITE | 6.889 ms | 4 - 7 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | QNN_DLC | 6.889 ms | 5 - 7 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | QCS8550 (Proxy) | Qualcomm® QCS8550 (Proxy) | ONNX | 8.287 ms | 0 - 26 MB | NPU | FastSam-S.onnx.zip |
| FastSam-S | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | TFLITE | 10.782 ms | 4 - 232 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | QCS9075 (Proxy) | Qualcomm® QCS9075 (Proxy) | QNN_DLC | 10.761 ms | 1 - 233 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | SA7255P ADP | Qualcomm® SA7255P | TFLITE | 37.745 ms | 4 - 243 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | SA7255P ADP | Qualcomm® SA7255P | QNN_DLC | 37.787 ms | 5 - 232 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | TFLITE | 6.907 ms | 4 - 22 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | SA8255 (Proxy) | Qualcomm® SA8255P (Proxy) | QNN_DLC | 6.828 ms | 5 - 7 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | SA8295P ADP | Qualcomm® SA8295P | TFLITE | 12.913 ms | 4 - 179 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | SA8295P ADP | Qualcomm® SA8295P | QNN_DLC | 12.842 ms | 0 - 162 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | TFLITE | 6.964 ms | 4 - 8 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | SA8650 (Proxy) | Qualcomm® SA8650P (Proxy) | QNN_DLC | 6.837 ms | 5 - 7 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | SA8775P ADP | Qualcomm® SA8775P | TFLITE | 10.782 ms | 4 - 232 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | SA8775P ADP | Qualcomm® SA8775P | QNN_DLC | 10.761 ms | 1 - 233 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | TFLITE | 5.165 ms | 4 - 402 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | QNN_DLC | 5.183 ms | 5 - 382 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | Samsung Galaxy S24 | Snapdragon® 8 Gen 3 Mobile | ONNX | 6.031 ms | 16 - 219 MB | NPU | FastSam-S.onnx.zip |
| FastSam-S | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | TFLITE | 3.803 ms | 0 - 210 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | QNN_DLC | 3.846 ms | 5 - 209 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | Samsung Galaxy S25 | Snapdragon® 8 Elite For Galaxy Mobile | ONNX | 4.81 ms | 12 - 184 MB | NPU | FastSam-S.onnx.zip |
| FastSam-S | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | TFLITE | 2.924 ms | 0 - 221 MB | NPU | FastSam-S.tflite |
| FastSam-S | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | QNN_DLC | 2.97 ms | 5 - 203 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | Snapdragon 8 Elite Gen 5 QRD | Snapdragon® 8 Elite Gen5 Mobile | ONNX | 3.6 ms | 2 - 155 MB | NPU | FastSam-S.onnx.zip |
| FastSam-S | float | Snapdragon X Elite CRD | Snapdragon® X Elite | QNN_DLC | 7.408 ms | 5 - 5 MB | NPU | FastSam-S.dlc |
| FastSam-S | float | Snapdragon X Elite CRD | Snapdragon® X Elite | ONNX | 8.534 ms | 19 - 19 MB | NPU | FastSam-S.onnx.zip |
Installation
Install the package via pip:
# NOTE: 3.10 <= PYTHON_VERSION < 3.14 is supported.
pip install "qai-hub-models[fastsam-s]"
Configure Qualcomm® AI Hub Workbench to run this model on a cloud-hosted device
Sign-in to Qualcomm® AI Hub Workbench with your
Qualcomm® ID. Once signed in navigate to Account -> Settings -> API Token.
With this API token, you can configure your client to run models on the cloud hosted devices.
qai-hub configure --api_token API_TOKEN
Navigate to docs for more information.
Demo off target
The package contains a simple end-to-end demo that downloads pre-trained weights and runs this model on a sample input.
python -m qai_hub_models.models.fastsam_s.demo
The above demo runs a reference implementation of pre-processing, model inference, and post processing.
NOTE: If you want running in a Jupyter Notebook or Google Colab like environment, please add the following to your cell (instead of the above).
%run -m qai_hub_models.models.fastsam_s.demo
Run model on a cloud-hosted device
In addition to the demo, you can also run the model on a cloud-hosted Qualcomm® device. This script does the following:
- Performance check on-device on a cloud-hosted device
- Downloads compiled assets that can be deployed on-device for Android.
- Accuracy check between PyTorch and on-device outputs.
python -m qai_hub_models.models.fastsam_s.export
How does this work?
This export script leverages Qualcomm® AI Hub to optimize, validate, and deploy this model on-device. Lets go through each step below in detail:
Step 1: Compile model for on-device deployment
To compile a PyTorch model for on-device deployment, we first trace the model
in memory using the jit.trace and then call the submit_compile_job API.
import torch
import qai_hub as hub
from qai_hub_models.models.fastsam_s import Model
# Load the model
torch_model = Model.from_pretrained()
# Device
device = hub.Device("Samsung Galaxy S25")
# Trace model
input_shape = torch_model.get_input_spec()
sample_inputs = torch_model.sample_inputs()
pt_model = torch.jit.trace(torch_model, [torch.tensor(data[0]) for _, data in sample_inputs.items()])
# Compile model on a specific device
compile_job = hub.submit_compile_job(
model=pt_model,
device=device,
input_specs=torch_model.get_input_spec(),
)
# Get target model to run on-device
target_model = compile_job.get_target_model()
Step 2: Performance profiling on cloud-hosted device
After compiling models from step 1. Models can be profiled model on-device using the
target_model. Note that this scripts runs the model on a device automatically
provisioned in the cloud. Once the job is submitted, you can navigate to a
provided job URL to view a variety of on-device performance metrics.
profile_job = hub.submit_profile_job(
model=target_model,
device=device,
)
Step 3: Verify on-device accuracy
To verify the accuracy of the model on-device, you can run on-device inference on sample input data on the same cloud hosted device.
input_data = torch_model.sample_inputs()
inference_job = hub.submit_inference_job(
model=target_model,
device=device,
inputs=input_data,
)
on_device_output = inference_job.download_output_data()
With the output of the model, you can compute like PSNR, relative errors or spot check the output with expected output.
Note: This on-device profiling and inference requires access to Qualcomm® AI Hub Workbench. Sign up for access.
Run demo on a cloud-hosted device
You can also run the demo on-device.
python -m qai_hub_models.models.fastsam_s.demo --eval-mode on-device
NOTE: If you want running in a Jupyter Notebook or Google Colab like environment, please add the following to your cell (instead of the above).
%run -m qai_hub_models.models.fastsam_s.demo -- --eval-mode on-device
Deploying compiled model to Android
The models can be deployed using multiple runtimes:
TensorFlow Lite (
.tfliteexport): This tutorial provides a guide to deploy the .tflite model in an Android application.QNN (
.soexport ): This sample app provides instructions on how to use the.soshared library in an Android application.
View on Qualcomm® AI Hub
Get more details on FastSam-S's performance across various devices here. Explore all available models on Qualcomm® AI Hub
License
- The license for the original implementation of FastSam-S can be found here.
References
Community
- Join our AI Hub Slack community to collaborate, post questions and learn more about on-device AI.
- For questions or feedback please reach out to us.
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