Video Subtitle Location and Recognition Based on Edge Features

摘要

Subtitle location and recognition technology is a special case of natural scene text recognition, but there are sorne differences between them, The subtitles in video frame have fixed position and lots of edge features. This papertakes that as a starting point, extracting edge features with Sobel operatorto locate the subtitle, adjusting color scale and taking the method of binarization to get the text image with pure background, finally obtains the text inthe frame via OCR technology.