反馈机制下图像镶嵌累积误差处理方法的研究  

Method of Reducing Accumulated Error in Multiple Image Mosaic Based on Feedback Mechanism

作　　者：汪之涛 李良福[1] 吴琼[1] 肖樟树[1] 

机构地区：[1]陕西师范大学计算机科学学院,西安710119

出　　处：《小型微型计算机系统》2016年第9期2104-2108,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61201434)资助;中央高校基本科研业务费专项资金项目(GK201503068)资助

摘　　要：针对多幅图像镶嵌中累积误差的问题,提出一种基于反馈机制的减小累积误差的图像镶嵌方法.在图像镶嵌之前,将所有待镶嵌图像进行柱面投影.算法对待拼接图像进行尺度不变特征点提取,在粗匹配的基础上,对互匹配唯一性约束原则和随机抽样一致方法建立一种反馈机制.运用最佳重叠度原理尽可能找出更多正确的匹配点对,为图像变换矩阵的计算提供良好的数据基础.实验结果表明:该种机制能够从本质上提高图像变换矩阵的精度,从而有效地减少多幅图像镶嵌的累积误差,并且对不同图像序列有着良好的自适应性.To solve the problem of accumulated error in multiple image mosaic, this paper proposed a new image mosaic method based on Feedback mechanism to reduce accumulated error. All images will be cylindrical projected before mosaic. The algorithm takes ima- ges and find the SIFT feature points. On the basis of rough match, this paper established a feedback mechanism on the principle of only constraint mutual match. Rely on this kind of mechanism and best overlapping principle, the proposed algorithm could find out more correctly matching points, which provide a good basis for the calculation of the transformation matrix. The result shows that the feed- back mechanism can effectively increase the accuracy of the image transformation matrix, which can reduce the accumulated error of multiple images mosaic. Additionally, this mechanism has good adaptability for different set of images.

关 键 词：反馈机制 自适应性 互匹配唯一性原则 图像镶嵌 累积误差 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]