The edge feature extraction of images has always been one of the most important and the most basic research tasks in the field of computer vision.
图像的边缘特征提取一直是计算机视觉领域里最重要的和最基本的研究任务之一。
Line is one of the basic features of image, and an important sign for image understanding. Linear feature extraction is very important in computer vision, image segmentation and pattern recognition.
直线是图像的基本特征之一，也是图像理解的一种重要符号，因此线特征提取在计算机视觉、图像分割和模式识别中有着重要的研究价值。
Thus, feature extraction has become the basic research of the related areas of image processing such as pattern recognition and computer vision.
因此特征提取成为模式识别与计算机视觉等图像处理相关领域的基础性研究内容。
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