动目标图像实时输入与处理微机视觉系统

本文介绍了一种基于微机的动目标图像实时输入与处理视觉系统。采用局部总线设计技术,集输入与处理为一体,使设计达到了单板化,将其直接插入IBM-PC及其兼容机槽内即可构成系统。并采用流水线、并行作业和时间重叠等方法,可将动目标实时从复杂背景中分割出来。通过场控制器,本系统可一边输入,一边运算,进行实时图像加减、特征提取、边缘检测和二值化运算等;多种运算方式使本系统在尽可能大的空间范围内跟踪动目标。本文提出了“扩展虚存”思想;设计了高速DMA控制器;应用了硬件开窗技术。系统经过运行实验,可满足一般性动目标的分割与跟踪。

A Micro-computer Based Vision System for Real-time Image Grasping and Processing of Moving Objects

A micro-computer based vision system for real-time image grasping and processing of moving objects is presented in this paper. Using local-bus design technique, image grasping and processing are combined on a single board. After its being inserted into the slot in IBM-PC or its compatible computer, the vision system is ready for operation. Using the technique of pipe-line, parallel operation, and time overlap, the moving object can be real-time separated from complex background. Using field controller, this system is able to grasp and process simultaneously the image including realtime image add/subtraction, character highlighting , edge detection, and threshold processing. The variety of operation makes this system track moving object in a possible maximum spatial region. An idea of "extended void memory" and a design of high speed DMA controller are presented in this paper. The hardware "window" technique is also employed. It is showed after operational running of the system that it meets the requirement of the segmenting and tracking of common moving objects.