用高速DSP构成图像识别专用系统的研究与设计

Research and Design of Image Recognition Special System by Means of High Speed DSP

本文介绍用高速DSP芯片TMS32010、单片机8031、便携式扫描器HS-3000构成的一种脱机图像识别专用系统。系统为主从式,并行处理。应用于印鉴、商标的真伪识别,及指纹、手写体汉字的识别。速度高;处理能力强;性能价格比高。64KB外部RAMs的扩充,像素存放RAMs的切换,“0”号单元的程序转储,基本库区、主从系统的通讯接口等电路的设计,优化了系统整体结构。

This paper proceeds from the practicality of the image recognition theory to design an image recognition special system separated from computer by use of two high-speed DSP chips TMS32010,single-chip microcomputer 8031, portable scanner HS-3000 and disposition system. The system is of a form of main-follower type and processed in parallel. The system is applied to recognize the seal, trade mark, the finger mark and handwritting Chinese characters. The system have the following features: high speed; powerful processing; high performance/cost ratio. Because the circuits of 64KB external RAMs expansion, picture element storing RAMs change zero number program dumping, essential storeregion and interface of transfer are ingenious in design, the system whole structure is excellent. Experiment results showed that the system speed is high and the design is reasonable.