采样技术在基于DSP的视频对象提取中的应用  

The application of the sampling techniques in the DSP-based video object extraction

作　　者：吴晓岚[1] 王世刚[2] 纪腾飞[3] 

机构地区：[1]北京信息职业技术学院电子工程系 [2]吉林大学通信工程学院 [3]中国人民解放军93534部队53分队

出　　处：《吉林大学学报（工学版）》2013年第S1期217-220,共4页Journal of Jilin University:Engineering and Technology Edition

摘　　要：基于多帧差和HOS(High-order statistic)的视频对象提取算法可以在DSP(Digital sig-nal processor)上实现。由于视频图像数据量大,为提高DSP处理视频图像的速度,充分考虑采样算法灵活有效的特点,采用一种采样算法。根据处理需要按比例减少或增加图像分辨率,即下采样和上采样算法。实验中将该算法在Blackfin-533 DSP芯片上运行,验证了该算法的可行性和有效性。The video object extraction algorithm that is based on the multi-frame difference and HOS(High-Order Statistic),can be implemented through DSP(Digital Signal Processor).However,due to the large amount of the video image data,the real time of the DSP is not satisfactory.In order to improve the speed of the DSP,a sampling algorithm was presented.It took full use of the flexibility and effectiveness of the sampling algorithm.By running on the Blackfin-533 DSP,the feasibility and effectiveness of the algorithm is proved.

关 键 词：数字信号处理器 高阶统计特性 多帧差 视频序列 采样 视频对象提取 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]