METHOD FOR SUPPLEMENTARILY DRAWING CONTENT AT STATION LOGO REGION IN VIDEO

摘要

Disclosed is a method for supplementarily drawing content at a station logo region in a video. The method comprises the following steps: 1) detecting a station logo region in a video, and marking the station logo region; and 2) performing the following supplementary drawing operations on each image in the video: 21) estimating, according to front L images and rear K images, (L+K) global reference images of a current image by using a global motion estimation method; 22) marking a foreground and a background of the station logo region in the current image; 23) supplementarily drawing a station logo region of the current image; 24) determining whether the station logo region of the current image is completely drawn, if so, entering step 26), otherwise, entering step 25); and 25) supplementarily drawing the rest undrawn region in the station logo region by using spatial correlation of the current image; and 26) ending the supplementary drawing of the current image. The method for supplementarily drawing the content at a station logo region in a video in the present invention can effectively improve the accuracy of supplementarily drawing content at the station logo region in the video by fully using time information between adjacent images.