摘要
在分析了现有的疲劳检测方法及装置存在的不足后,设计开发了一种低成本基于视觉的汽车驾驶员疲劳检测装置,当该装置检测到驾驶员疲劳时给与警示。本文提出保留有效信息的同时减少图像的大小,从而降低了对存储空间及处理速度的要求,可以实现用较低成本的处理器替代高成本处理器;通过DMA实现图像的无丢失采集存储,减少器件FIFO的应用,从而实现了降低成本,提高实用化的目的。实验结果证明该装置的可应用性。
The deficiency of fatigue detecting methods and devices are analyzed firstly. Then a kind of low cost fatigue detecting device of car driver based on vision is designed, this device can alarm when it detects car driver＇s fatigue. A method of reserving valid information and decreasing image is presented, which reduces the need of storage and process speed, so a lower cost processor is used to instead of high cost processor; Images can be collected and stored without lost by using DMA and FIFO is not used, low cost and utility are realized accordingly. The experimental result shows that this device can be applied.
出处
《微计算机信息》
北大核心
2008年第27期302-303,287,共3页
Control & Automation
基金
国家自然科学基金资助项目(60472088)
虹膜识别几个关键问题的研究
