CAJ | 학술논문

本文中提出一种基于图像行数据处理的车道线识别方法和低成本车道偏离预警系统。通过逐行特征的提取和归类处理，提高运行效率，降低内存消耗。在此基础上利用数字摄像头和主频为400MHz的DSP芯片，设计出低成本车道偏离预警系统。它无需视频解码电路和拓展存储器，在保证车道线识别率的同时有效降低了硬件复杂度。为量化评估系统车道线识别性能，采用了一种适用于嵌入式系统的车道线识别测试方案，利用离线制作的样本数据，对车道偏离预警系统进行了硬件在环识别性能的测试。结果表明，系统具有较高的稳定性和实时性，在典型工况下能获得很好的识别率。
본문중제출일충기우도상행수거처리적차도선식별방법화저성본차도편리예경계통。통과축행특정적제취화귀류처리，제고운행효솔，강저내존소모。재차기출상이용수자섭상두화주빈위400MHz적DSP심편，설계출저성본차도편리예경계통。타무수시빈해마전로화탁전존저기，재보증차도선식별솔적동시유효강저료경건복잡도。위양화평고계통차도선식별성능，채용료일충괄용우감입식계통적차도선식별측시방안，이용리선제작적양본수거，대차도편리예경계통진행료경건재배식별성능적측시。결과표명，계통구유교고적은정성화실시성，재전형공황하능획득흔호적식별솔。
With a technique of line-based image processing, a lane mark recognition method and a low-cost lane departure warning system ( LDWS ) are proposed in this paper. Through line-by-line feature extraction and classification, the operation efficiency is enhanced with required memory reduced. On this basis, a low-cost LDWS is designed by using digital camera and 400MHz DSP chip. With no video decoding circuit and extended memory, the hardware complexity of the system is effectively reduced while ensuring a good recognition rate of lane marking. For evaluating the recognition performance of the system, a testing scheme suitable for embedded systems is pro-posed to fulfill a hardware-in-the-loop test on the recognition performance of LDWS based on offline made sample data. The results show that the system can achieve a good recognition rate in typical operating conditions with high stability and real-time performance.