git《USD-Seg:Learning Universal Shape Dictionary for Realtime Instance Segmentation》(2020) GitHub: [fig2]

Overview

USD-Seg

This project is an implement of paper USD-Seg:Learning Universal Shape Dictionary for Realtime Instance Segmentation, based on FCOS detector from MMDetection tool box.

Introduction

We present a novel explicit shape representation for instance segmentation. The proposed USD-Seg adopts a linear model, sparse coding with dictionary, for object shapes. First, it learns a dictionary from a large collection of shape datasets, making any shape being able to be decomposed into a linear combination through the dictionary. Hence the name "Universal Shape Dictionary". It adds a simple shape vector regression head to ordinary object detector, giving the detector segmentation ability with minimal overhead.

demo image

License

This project is released under the Apache 2.0 license.

Model

The overall pipeline of USD-Seg: an RGB image is input to the base detector, and the base detector will regress both detection related information (bounding box and class) and the shape vector. Then the mask will be decoded by simple multiplication between shape vector and dictionary atoms, followed by proper resize and threshold operations. demo image

Installation

Please refer to INSTALL.md for installation and dataset preparation.

Get Started

Please see GETTING_STARTED.md for the basic usage of MMDetection.
We follow the original usage of mmdetection framework. You can use configs for usd-seg in /configs/usdseg/ to train from scratch.

Citation

If you use this toolbox or benchmark in your research, please cite this project and mmdetection.

@article{USD-Seg,
  title   = {Learning Universal Shape Dictionary for Realtime Instance Segmentation},
  author  = {Tang, Tutian and Xu, Wenqiang and Ye, Ruolin and Yang, Lixin and Lu, Cewu},
  journal= {arXiv preprint arXiv:2012.01050},
  year={2020}
}

Contact

This repo is currently maintained by Tutian tang (@ElectronicElephant)and Ruolin Ye (@YoruCathy). Other core developers include Wenqiang Xu (@WenqiangX). For technical details, please feel free to contact the authors directly via Email.

Owner
Ruolin Ye
HSEFZ 18 @HSEFZ →SJTU 22, Information Engineering @sjtu @MVIG-SJTU
Ruolin Ye
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