基于双DSP结构的动态手势红外遥控系统  

A dual DSP-based infrared telecontrol system on gesture interaction

作　　者：梁凯[1] 曹广忠[1] 徐佳瑛[1] 邱洪[1] 周受钦 

机构地区：[1]深圳大学深圳电磁控制重点实验室,广东深圳518060 [2]深圳中集智能科技有限公司,广东深圳518067

出　　处：《微型机与应用》2014年第7期83-86,90,共5页Microcomputer & Its Applications

基　　金：国家自然科学基金(51275312);深圳市南山区计划项目(南科研2011-066);深圳市基础研究计划项目(JC201104210135A)

摘　　要：为了在红外遥控系统中实现手势交互,设计了一种基于双DSP结构的具有动态手势视觉识别功能的红外遥控系统。针对手势识别图像算法的复杂性,系统采用了一种流水线式的动态图像处理模式并提出了一种基于双端口RAM通信的双DSP图像处理硬件系统结构。结构前级负责实时采集图像数据及手势图像预处理,后级结合以帧差法为核心的手势识别算法负责动作识别处理,从而节省单DSP需要的等待时间,手势图像处理任务同步进行,加快动态图像处理的速度。另外,双DSP结构使得系统资源得到有效分配,复杂处理算法同步运行,再配合自学习红外遥控模块实现红外遥控功能。实验结果表明,系统一次手势动作的最短识别时间为1.5 s,动作识别的准确率达到93.75%,具有良好的稳定性和可操作性。In order to realize an infrared telecontrol system on user＇s gesture interaction, a dual DSP-based system is designed. Due to the complexity of image algorithm on gesture recognition, a line-type image processing mode is used in the system and realized by using a dual-DSP processing platform which based on dual port RAM communication. The first stage of the processing mode is responsible for the real-time data acquisition and image preprocessing while the second stage combined with gesture image algorithm of frame difference and self-learning infrared telecontrol module is responsible for action recognition and telecontrol. Resources are efficiently allocated by Dual DSP structure so that waiting time needed by single DSP is saved and Image processing tasks are processed synchronously. Experimental results show that the shortest recognition time of system is 1.5 second as well as action recognition accuracy reaches 93.75%. The system has good stability and maneuverability.

关 键 词：双DSP结构 CMOS数字摄像头 手势识别 红外遥控 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]