图像特征提取是计算机视觉和图像处理中的一个概念。它指的是使用计算机提取图像信息，决定每个图像的点是否属于一个图像特征。包括：Harris角点、ShiTomasi角点、亚像素级角点、SURF角点、Star关键点、FAST关键点、Lepetit关键点等等(Image feature extraction is a concept in computer vision and image processing. It refers to using a computer to extract image information and determine whether the points of each image belong to an image feature. It includes: Harris corner point, ShiTomasi corner point, sub pixel corner point, SURF corner point, Star key point, FAST key point, Lepetit key point and so on)