阅读说明：本技术 一种图像特征提取方法及装置 (Image feature extraction method and device ) 是由 王易诚 方晓鑫 但汉光 黄启才 孙艳英 于 2018-05-21 设计创作，主要内容包括：一种图像特征提取方法及装置,涉及图像处理技术领域,用于加快图像特征提取的速度。该方法包括：获取输入图像,该输入图像为灰度图像(S301)；对输入图像进行切片和下采样处理,得到N层金字塔图像,N层金字塔图像中的每层金字塔图像包括多个切片图像(S302)；提取每层金字塔图像中每个切片图像的至少一个特征点,每个特征点为所述每层金字塔图像的角点(S303)；对每层金字塔图像的多个切片图像的特征点进行筛选处理,得到每层金字塔图像的多个目标特征点,每个目标特征点为选择出的预设区域中响应得分值最大的特征点(S304)。(An image feature extraction method and device relate to the technical field of image processing and are used for accelerating the image feature extraction speed. The method comprises the following steps: acquiring an input image, wherein the input image is a gray scale image (S301); slicing and downsampling the input image to obtain N layers of pyramid images, wherein each layer of pyramid image in the N layers of pyramid images comprises a plurality of slice images (S302); extracting at least one feature point of each slice image in each layer of pyramid image, wherein each feature point is the corner point of each layer of pyramid image (S303); and (S304) screening the feature points of the plurality of slice images of each layer of pyramid image to obtain a plurality of target feature points of each layer of pyramid image, wherein each target feature point is the feature point with the largest response score value in the selected preset area (S304).)