基于COMS数字摄像头的低速单片机的实时采集研究

摘要

The domestic undergraduate intelligent vehicle design competition and relevant electronic informa-tion competition is set as the background in this paper. In order to solve the mismatch problem between image output of COMS digital video camera used on the intelligent vehicle and sampling speed of microcontroller,a real-time acquisition scheme of low speed microcontroller based on COMS digital video camera is proposed. It has advantages of low cost,easy realization,high resolution and full frame rate,and so on,which can increase acquisition resolution from 160 pixel points per row to 320 pixel points per row. The whole picture has no error point. The experiment shows that this method can reduce the requirements of the hardware,carry out high speed data acquisition at the same time,save cost and provide a new way for high speed data acquisition of low speed microcontroller.%以国内大学生智能车设计竞赛及相关电子信息类竞赛为背景，主要针对智能车所用COMS数字摄像头的图像输出与单片机的采集速度不匹配问题，提出一种基于COMS数字摄像头的低速单片机的实时采集方案。具有低成本、易实现、高分辨率、全速帧率等优点，能够将采集分辨率从每行160个像素点提高到每行320个像素点，整张图片无噪点。实验证明此方法可以在降低对硬件要求的同时进行高速数据采集，节省成本，为低速单片机的高速数据采集的提供了一种新思路。