实时处理三维视觉信息的DSP实现方案

An Approach to the Implementation of Real-Time Processing of Three-Dimensional Visual Information by Using DSP

在三维视觉系统中 ,采用数字信号处理器 ( DSP)对三维视觉信息进行实时处理 ,可以提高处理三维视觉信息的运算速度。在实时采集处理系统的实现方案中 ,信号采集子系统与 DSP之间的数据通信方式 ,实时采集处理系统与 PC机之间的数据传输方式 ,也是影响三维视觉系统信息处理速度的两个重要因素。该系统采用双端口 RAM和中断方式进行数据传输 ,实现了信号采集子系统与 DSP、实时采集处理系统与 PC机的并行处理 。

This paper presents an approach to the implementation of the real time processing of three dimensional vision information. In this approach, the digital signal processor (DSP) is applied to the three dimensional vision system so that the processing of three dimensional visual information is accelerated. Besides the capacity of high speed computation of DSP, there are two critical factors to influence the processing speed of the whole three dimensional vision system. One is the mode of communication between the sub system for data sampling and the DSP. The other is the way of data transmission between the real time sampling and processing system and the PC. In the proposed approach, we apply the dual port RAM and the interruption mode for data transmission, by which the signal sampling subsystem and DSP, and the real time processing system and the PC, are implemented with parallel processing. Therefore the processing speed of the vision information of the whole three dimensional system increases.