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一种动态环境下的自适应阈值分割方法

刘敦浩,张彦铎,李迅,张瑶,袁博   

  1. 武汉工程大学
  • 收稿日期:2015-11-30 修回日期:2016-01-21 发布日期:2016-01-21
  • 通讯作者: 刘敦浩

An adaptive thresholding method under the dynamic environment

  • Received:2015-11-30 Revised:2016-01-21 Online:2016-01-21

摘要: 阈值分割一直是图像处理和分析领域中的一个经典问题,也是该领域的难点之一。阈值分割效果的好坏则得益于阈值划分方法,本文研究在机器人比赛背景下对色标模型障碍物的识别情况,针对机器人在移动过程中会因视角,光照变化而导致静态图像处理不能很好的提取出障碍物的问题,提出了一种基于动态环境下的自适应阈值分割方法,首先研究了不同颜色空间在动态环境下的静态识别情况,提取出识别效果最好的颜色空间,然后通过不断更新对下一帧中心点与下一帧图像阈值识别范围来达到自适应图像分割的效果,这样不仅可以有效地缩短阈值范围估计,也能最大化的识别出目标,并通过结合HSV与YCbCr颜色空间来对更新中心点进行修正与还原来提高算法的精确性,最后通过实验与比较,得出较好结论。

关键词: 阈值分割, 图像处理, 动态环境, 色标模型, 颜色空间, 自适应

Abstract: Thresholding is a classic issue in the field of image processing and analysis, and also it is one of the most difficulties in the field. The quality and effect of thresholding benefited from the threshold dividing method, in this paper we study the recognition of color pattern model under dynamic surrounding, and current static image processing methods cannot work well for the changing vision and illumination when the robot moving, under this circumstance we put forward a adaptive threshold segmentation method, we first study utilizing different color space to recognize the target under dynamic environment, and choose the best color space, then through updating the next center point and recognition range which we estimated by the current image to reach the adaptive threshold segmentation, thus not only maximize the identified target, but also effectively shortening the threshold range estimated, we combine HSV and YCbCr color space to correct and reduce the estimated center point to improve the accuracy of our algorithm as well, at last we experiment and compare to get the good conclusion.

Key words: Keywords: threshold segmentation, image processing, dynamic environment, color pattern model, color space, adaptive

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