一种快速全景图像拼接技术

DEVELOPMENT OF FAST PANORAMA IMAGE MOSAICS

目前 ,全景图像的拼接是基于图像绘制技术 (IBR)研究的主要内容。本文提出一种新的快速有效的全景图像的拼接算法。在图像对齐中 ,对基于快速傅立叶变换 (FFT)的相位相关度法进行了改进 ,提出了 2幂子图像的概念 ,采用了基于 2幂子图像的FFT对齐方法 ,从而减小了FFT的计算量 ,使改进后的算法对图像对齐更加快速和减小图像间重叠率。在柱面坐标下 ,使用迭代方法计算照相机焦距参数。并采用融合前平滑过渡的算法。

Panorama image mosaics is the main content in research of image-based rending.This paper advanced one rapid and efficient algorithm of image mosaics.In image registration,this paper put out the concept of two-power sub-image to improve the Phase Correlation based on Fast Fourier transform(FFT).A new iterative means can figure out focus of camera parameter.The paper also brings forward a method of smooth transition.At the end of the paper,we constructed a real IMV system to do experiments.