CAJ | 학술논문

在图像处理过程中的分析图像的特征,需要达成特征提取,为后续的图像处理和分析。在目标图像的提取过程中,本文选定了特征角点特征。角点定位准确的图像匹配在三维重建中起着重要的作用。角落像素相对于外在的像素灰度值的突变或凸形状的像素点较为集中。本文分析了三个角点提取方法：苏珊角点检测方法,哈里斯角点检测方法,多尺度结合苏珊算法改进,亚像素角点检测方法,以便满足系统对精度的要求。
재도상처리과정중적분석도상적특정,수요체성특정제취,위후속적도상처리화분석。재목표도상적제취과정중,본문선정료특정각점특정。각점정위준학적도상필배재삼유중건중기착중요적작용。각락상소상대우외재적상소회도치적돌변혹철형상적상소점교위집중。본문분석료삼개각점제취방법：소산각점검측방법,합리사각점검측방법,다척도결합소산산법개진,아상소각점검측방법,이편만족계통대정도적요구。
The characteristics of image analysis in image processing,the need to reach the feature extraction for the subsequent image processing and analysis.In the extraction process in the target image,the selected characteristics of corner features.Corner location and accurate image matching plays an important role in the three-dimensional reconstruction.Corner of the pixel relative to the mutation of the external value of the pixel gray or convex shape of the pixel is more concentrated.This paper analyzes the three-corner extraction：SUSAN corner detection method,the Harris corner detection method of multiple scales combined with Susan algorithm improvement,subpixel corner detection method,in order to meet the requirements of the system accuracy.