基于多级分层模板的实时跟踪算法设计与实现  

Design and Implementation of Real-time Tracking Algorithm Based on Multi-level Hierearchical Template Matching

作　　者：何华丽[1] 唐普英[1] 唐湘成[2] 杨建熙[2] 曾军[2] 黄自力[2] 

机构地区：[1]电子科技大学,四川成都611731 [2]西南技术物理研究所,四川成都610041

出　　处：《电视技术》2012年第23期155-159,185,共6页Video Engineering

摘　　要：针对相关匹配中单一模板和简单分层模板跟踪效果不理想的问题,提出了一种新的多级分层模板匹配算法。为了减少整个算法中耗时最大的绝对差值和(SAD)计算时间,在DSP平台下对其进行优化和提速以满足跟踪系统实时性要求。最后,在Blackfin561系列DSP平台上实现了该算法,并对该算法的跟踪性能进行了测试,结果表明,该算法能够进行运动目标的实时跟踪,并在目标尺寸缩放、环境亮度发生改变时仍能保持准确跟踪,具有可靠性高和稳定性强的特点。In correlation-matching algorithm,result of single template and simple hierarchical-template is unsatisfactory. A new multi-stage hierarchi- cal template matching algorithm is designed in this paper. Optimization on DSP platform has also been done for the SAD calculating, which takes the most time of entire algorithm. Then,the new algorithm is realized on DSP, the experimental results indicate that this algorithm can conduct real-time tracking, keep good performance while the size of target or the illumination changing, and has high reliability and stability.

关 键 词：DSP 多级搜索 分层模板 相关匹配 

分 类 号：TN911.73[电子电信—通信与信息系统]