现代电子技术2017，Vol.40Issue(15)：10-13,4.DOI:10.16652/j.issn.1004-373x.2017.15.003
一种改进的鱼眼图像有效区域提取方法
An improved effective area extraction method of fish-eye image
摘要
Abstract
Since the image taken by the fish-eye lens has serious distortion,in order to take advantage of the information of the fish-eye image,it must be corrected as the conventional linear image. The extraction of the fish-eye effective area is a pre-requisite for correction. The extraction accuracy of the fish-eye image effective area can affect on the correction effect of the fish-eye image. The scanning line approximation method of the commonly-used ones has small calculated amount and fast speed, as well as poor anti-interference ability. To eliminate the shortcoming that the black pixel existing in the effective area boundary can affect on the accuracy of the traditional algorithms,an improved algorithm of changing the scanning step size and retracting the vertical line is proposed. The experimental results show that the algorithm can determine the center coordinate and radius of the active area accurately,has high precision and short time-consuming,can meet the real-time requirements,and has strong practical value.关键词
鱼眼图像/有效区域提取/扫描线逼近/垂线缩进/实时性高Key words
fish-eye image/effective region extraction/scanning line approximation/vertical-line indentation/high real-time performance分类
信息技术与安全科学引用本文复制引用
马朋飞,穆春阳,马行,李柳群..一种改进的鱼眼图像有效区域提取方法[J].现代电子技术,2017,40(15):10-13,4.基金项目
国家自然科学基金项目(61162005,61163002) （61162005,61163002）
宁夏自然科学基金项目(NZ16086) （NZ16086）
北方民族大学研究生创新项目(YCX1674) （YCX1674）
