Laser & Optoelectronics Progress, Volume. 57, Issue 21, 210101(2020)

Shape Object Matching Recognition of Turbulence Clutter Based on Improved Shape Context

Xu Xinggui1,2,3, Ran Bing1,3, Yang Ping1, Xian Hao1, and Liu Yong2
Author Affiliations
  • 1中国科学院光电技术研究所, 四川 成都 610209
  • 2电子科技大学光电科学与工程学院, 四川 成都 610054
  • 3中国科学院大学, 北京 100049
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    Contour targets are affected by turbulence clutters in near-ground remote imaging scenes, leading to large matching errors. To address this problem, we propose a shape point set matching recognition method based on an oriented shape context and an edge continuity constraint. In the proposed method, directional features are embedded into a traditional shape context to construct a feature operator with a scale and rotation invariance. Further, inspired by the priori of edge continuity between the template and target shapes, we add the edge continuity constraint condition of the contour shape into the target matching energy cost function to improve the accuracy of shape matching. The experimental results of shape matching in a synthetic turbulence clutter scene and a real remote imaging scene show that compared with the traditional method, the proposed method can reduce the target matching error by about 6% in clutter scenes and reduce computational complexity.

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    Xu Xinggui, Ran Bing, Yang Ping, Xian Hao, Liu Yong. Shape Object Matching Recognition of Turbulence Clutter Based on Improved Shape Context[J]. Laser & Optoelectronics Progress, 2020, 57(21): 210101

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    Paper Information

    Category: Atmospheric Optics and Oceanic Optics

    Received: Dec. 23, 2019

    Accepted: --

    Published Online: Oct. 24, 2020

    The Author Email:

    DOI:10.3788/LOP57.210101

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