Census立体匹配算法的DSP实现  

Census Stereo Matching based on DSP

作　　者：陈登[1,2] 白洪欢[1] 

机构地区：[1]浙江大学计算机学院,杭州310027 [2]浙江省科技信息研究院,杭州310006

出　　处：《科技通报》2008年第6期860-865,共6页Bulletin of Science and Technology

摘　　要：立体匹配是计算机立体视觉中最重要的步骤之一,由于计算量巨大,使得在各种实时应用中,都必须解决立体匹配的优化问题。立体匹配的实时性研究已经成为现代立体视觉的一个重要研究方向。本文从硬件和软件两个层次分析了立体匹配算法的基本加速方法和技巧,然后详细介绍了利用TiC64xDSP进行Census算法的优化。最后通过实验结果验证了本文提出算法的有效性。Stereo matching is the one of the most important step in the computational stereo. Because of the requirement of mass computation power,the optimization tasks become the first thing we have to do in most real-time applications. And real-time stereo also become the hot spot in the research of computational stereo. This,paper tried to solve this problem in both algorithm and DSP implementation.The Census matching is introduced and analyzed. Then the mapping between the algorithm and DSP architecture is well designed and finely tuned. Experimental results show that the proposed method is effective.

关 键 词：立体匹配 CENSUS TiC64xDSP CACHE 循环展开 线性汇编 优化 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]