摘要
可编程片上系统(SOPC)是Altera公司提出的一种灵活、有效的片上系统解决方案,为构建实时、便携的车牌自动识别系统提供了较好的解决途径。本文以Nios II嵌入式软核处理器为核心,通过IP核复用技术,内嵌MicroC/OS-II操作系统,实现车牌自动定位与识别的片上系统设计。介绍了系统的基本功能与硬件设计,以及车牌定位分割与字符识别算法的实现。测试结果表明,该系统具有集成度高、可靠性好、车牌识别误差低等特点。
The system-on-a-programmable-chip （SOPC）, developed by Altera Corporation, is a flexible and efficient SOC design methodology and provides a good solution to the design of a real-time and portable vehicle license plate location and recognition system. Bade on Ahera Corporation＇s FPGA hardware development platform and Nios Ⅱ processor, a system on one FPGA chip for vehicle license plate location and recognition is developed. The function and global structure of the system is first described, and the algorithm of vehicle license plate location and recognition, and the process flow of the system are then investigated in detail. Experiment results show that the system has the advantages of high integration, high reliability, and high recognition precision.
出处
《微计算机信息》
北大核心
2007年第35期145-147,共3页
Control & Automation
基金
国家民委重点资助项目(MZZ04004)
中南民族大学自然科学基金(YZY05004)
关键词
NIOS
Ⅱ处理器
车牌自动定位
字符识别
可编程片上系统
Nios Ⅱ Processor, Vehicle License Plate Location, Character Recognition, System on a Programmable Chip
