关键词: 信息处理技术, 电视制导, 隐式ROI, 优化截取内嵌块编码, ROI掩模提取

Abstract: A target searching scheme called ROI algorithm on the basis of automatic luminance value detection for video-guided missile was proposed. An implicit ROI coding algorithm in EBCOT was improved for better searching performance. The priority of background coefficient in ROI code block can be largely reduced when the improved algorithm was used. Therefore, the interest region can be encoded at a higher quality level which makes high quality images display at low channel rate possible and facilitates fast and accurate manual guide. And comparison of three coding schemes, EBCOT, implicit ROI, and the improved ROI method was conducted, which demonstrates that the proposed algorithm possesses higher compression efficiency, lower complexity as well as good reconstructed ROI images quality in lower channel capacity for videoguided missile in small target searching in wide background environment.

Key words: information processing, videoguided missile, implicit ROI, EBCOT, ROI extraction