| 基于DSP的机动车抗眩目系统设计 |
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| 引用本文： | 孙景燕,王健,张志文. 基于DSP的机动车抗眩目系统设计[J]. 西安工业大学学报, 2006, 26(6): 545-548 |
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| 作者姓名： | 孙景燕 王健 张志文 |
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| 作者单位： | 西安工业大学电子信息工程学院 西安710032 |
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| 摘 要： | 为了解决车辆在夜间行驶时,对面车灯给驾驶员造成的眩目问题,提出了一种机动车抗眩目系统的设计方案.采用视频解码芯片SAA7111A和视频编码芯片AL250完成视频信号的A/D和D/A转换;利用数字信号处理器DSP对亮度值过高的像素点进行消亮处理,以达到抗眩目的目的;可编程逻辑器件CPLD完成对整个系统的逻辑控制以及提供存储器写数据的地址.系统经实际运行,性能稳定,抗眩目效果明显.
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| 关 键 词： | 抗眩目 视频解码 图像编码 实时图像处理 |
| 文章编号： | 1000-5714（2006）06-545-04 |
| 收稿时间： | 2006-09-14 |
| 修稿时间： | 2006-09-14 |
Design of DSP-based Anti-glare System of Vehicles |
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| SUN Jing-yan,WANG Jian,ZHANG Zhi-wen. Design of DSP-based Anti-glare System of Vehicles[J]. Journal of Xi'an Institute of Technology, 2006, 26(6): 545-548 |
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| Authors: | SUN Jing-yan WANG Jian ZHANG Zhi-wen |
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| Abstract: | Glare is one of the most important reasons of the night driving accident and visual fatigue.In order to solve the problem,a design of anti-glare system is presented in this paper.The SAA7111A decode chip and AL250 encode chip are used to accomplish the functions of Analog Digital and Digital to Analog conversion seperately.The over-brightness pixels is adjusted by means of DSP in order to meet the requirement of anti-glare.The CPLD is used to control the logic of whole system,and it also provides the write address of memory.The system is experimentally proved the features of stability and excellent anti-glare effect. |
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| Keywords: | anti-glare SAA7111A AL250 real-time image processing |
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