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一种从噪声图像中提取边缘的启发式搜索算法*

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Keywords: 边缘提取,边缘检测算子,分段自增强,启发式搜索,Canny算子,小尺度高斯滤波

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Abstract:

提出一种在噪声图像中基于边缘分段自增强的启发式边缘搜索算法.首先对噪声图像进行小尺度高斯滤波;再使用本文设计的新型边缘检测算子获取引导信息,此边缘检测算子在定位精度、抑制噪声和虚假边缘方面具有较好的性能;然后对各搜索轨迹进行分段自增强;最后根据自增强累积的程度获取噪声图像的边缘.实验结果表明:此算法能够有效地从噪声图像中提取物体的真实边缘,并能最大限度地保留细节信息,其性能优于经典的Canny算子.

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