基于DM6437图像序列中的直线检测  

Straight-line detecting based on DM6437

作　　者：陈家哲[1] 罗文广[1] 谢超艺 张午昀 

机构地区：[1]广西科技大学电气与信息工程学院,广西柳州545006

出　　处：《广西科技大学学报》2014年第3期44-48,54,共6页Journal of Guangxi University of Science and Technology

基　　金：广西汽车零部件与整车技术重点实验室基金项目(13-51-38);广西重点实验室基金项目(2012KFZD03;2013KFZD03)资助

摘　　要：为了使用DM6437来检测车道线,需要先实现对摄像头采集来的图像序列进行直线检测.基于DM6437硬件平台,通过CCD摄像头采集图像序列,采集的图像序列为D1标清格式,大小为720*480,并经过DM6437中TVP5150解码器将图像序列中每帧图像由模拟信号变换成数字信号,数字信号储存到DM6437的外DDR2,再通过集成开发环境CCS3.3将在DSP/BIOS下由C和C++语言编写的图像处理工程导入DM6437中,DM6437处理器芯片将储存的数字信号进行灰度变换,高斯滤波,Canny算子边缘检测,Hough变换等算法处理,将处理后的图像送到液晶显示屏上显示,最终在显示屏上显示出检测的直线.In order to detect the lane through the DM6437, you need to realize the camera to capture an image sequence line detection. Based on DM6437 hardware platform, the first collected by the CCD camera image sequence, image sequence acquisition of D1SD format, size is 720 - 480, by DM6437 decoder, each frame image stored by the analog signal into a digital signal, the digital signal to the external DDR2 in DM6437, the second over the integrated development environment Code Composer Studio, under DSP/BIOS image processing projects are established by the C and C＋＋, it is imported to DM6437 processor, DM6437 processor chips will be stored digital signal to gray transform, Gaussian filtering, Canny operator edge detection, Hough transform algorithm processing, the processed image is displayed on the LCD screen. Finally, the real-time display of the image sequence is the straightest line.

关 键 词：高斯滤波 Canny算子边缘检测 HOUGH变换 DM6437 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]