基于DSP抠像处理的KTV视频合成机顶盒设计与开发  

Design and development of the set-top box with video synthesis using DSP-based image matting

作　　者：韩柳[1] 胡德计[1] 

机构地区：[1]天津职业技术师范大学机械工程学院,天津300222

出　　处：《天津职业技术师范大学学报》2011年第4期34-37,共4页Journal of Tianjin University of Technology and Education

基　　金：天津市自然科学基金项目(10JCYBJC06900);天津职业技术师范大学科研项目(YJS10-12)

摘　　要：设计开发了一种新型KTV视频合成机顶盒系统。该系统采用全新的DSP技术,对音视频进行采集、合成,利用抠像技术进行人像采集,使视频、音频、动态背景、动态前景、人物等有机地结合。该研究给出了基于高性能DSP双路视频处理器的KTV机顶盒软硬件实现方案,研制了基于DSP视频处理器的视频实时叠加算法、实时抠像处理算法和异型窗口变形算法,并给出了该系统的使用效果示例。A new KTV set-top box system with the synthesis of video is developed. A new DSP technology is used in this system for the capture and synthesis of audio and video, and the image matting technology is also used for user＇s portrait collection, in order to make the combination of video, audio, dynamic backgrounds, dynamic outlook and the users. To this end, hardware and software are designed for the high-performance DSP- based dual-processor KTV set-top box, and a DSP-based real-time video overlay algorithm, real-time image matting algorithm and window deformation algorithm are also developed. Finally, examples showing the effect of the system are given in the paper.

关 键 词：机顶盒 KTV DSP 抠像 

分 类 号：TN949.197[电子电信—信号与信息处理]