基于线定标光的内窥镜图像垂直倾斜校正方法  

An Approach for Image Vertical Tilt Correction Based on the Fixed Cursor

作　　者：余永朝[1] 姜滨[1] 

机构地区：[1]华中光电技术研究所-武汉光电国家实验室,湖北武汉430223

出　　处：《光学与光电技术》2015年第3期85-88,共4页Optics & Optoelectronic Technology

基　　金：2014湖北省重大科技创新计划项目<高清电控测量式工业电子内窥镜>资助项目

摘　　要：内窥镜图像测量中为了保证测量精度,理论上要求成像系统的光轴与物平面保持垂直,而实际测量过程中光轴与物平面一般存在一定程度的垂直倾斜。针对垂直倾斜对内窥镜图像测量的影响,提出了一种基于内窥镜发射的线定标光的垂直倾斜校正方法。该方法从线定标光的位置信息中提取光轴倾斜信息,并对图像进行校正。实验结果表明,所提出的图像垂直倾斜校正方法能对内窥镜图像进行准确校正。In order to ensure the accuracy of the endoscope image measurement,theoretically the image optical axis should maintain vertical with the object plane.In fact,certain amount of tilt exists between the optical axis and the object plane,which is called vertical tilt.To minimize the influence of the vertical tilt,an approach for image vertical tilt correction based on the fixed cursor is presented in this paper.This approach uses the tilt information of the optical axis from the fixed cursor's position to correct the image.Experiment result shows that this approach for image vertical tilt correction reaches accurate result.

关 键 词：内窥镜 图像测量 垂直倾斜 线定标光 倾斜校正 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]