轮廓提取是图像信息处理、机器视觉等领域中的经典难题之一。轮廓组织，即基于感知组织的轮廓提取技术为解决这一经典难题注入了新的活力。从轮廓提取与感知组织之间结合点出发，按照时间顺序对轮廓组织的研究现状进行比较,全面总结并分析现有方法的特点和不足，最后指出了进一步研究的发展方向。

Contour extraction is one of the typical problems in image processing and computer vision. Contour grouping, which is a contour extraction technique based on perceptual organization, shows promising development trend. This paper addresses the research on contour organization. First, it puts forward the relationship between contour extraction and perceptual organization. Second, a comprehensive summary on related research work is given. Then their characteristics and shortcomings are analyzed. At last, further research directions are suggested.