A mosaic method of video sequence based on adaptive keyframes
Xie Shao-xia · Electronic Design Engineering · 2011
In order to solve the problems of time consuming and the mount of frames in video mosaic,a mosaic method of video sequence based on adaptive keyframes was proposed.The features of keyframes which were extracted by fixed sampling period were extracted.With the RANSAC robust estimation for homography matrix,the overlaps of keyframes were estimated.According to the overlaps ratio and binary search,the reorientation of keyframes was completede,repeating above processing procedure,the final keyframes were extracted.finally,Finally,with the cascades of homography matrix,the seamless mosaic is rendered by the image blending.The experiment demonstrates this algorithm's efficiency.