基于嵌入式与OpenCV的电缆护套拉伸长度测量  

Cable sheath stretched length measurement based on embedded and OpenCV

作　　者：高振斌[1] 李盼生 

机构地区：[1]河北工业大学电子信息工程学院,天津300401

出　　处：《电视技术》2016年第2期141-145,共5页Video Engineering

基　　金：国家质检总局科技计划项目

摘　　要：针对电缆护套拉伸长度测量智能化和稳定性的要求,使用以IMX.6Q芯片为主处理器的嵌入式平台,搭载200万像素USB工业相机,采用机器视觉的方法对其进行测量。将开源图像处理OpenCV函数库移植到嵌入式Linux系统上,使用数学形态学和颜色阈值分割的方法来进行电缆护套标记点的定位。阈值分割方法采用直方图最频值法和最大类间方差法,可以实时地对电缆护套标记点进行跟踪,从而精确地测量出电缆护套拉伸长度。To meet the measurement＇ s intelligent and stability requirements, cable sheath stretched length is measured using machine vision methods, on the IMX. 6Q chip-based embedded platform equipped with a 2.0 megapixel USB industrial cameras. At first, open source image processing libraries OpenCV is transplanted to embedded Linux systems. Secondly, mathematical morphol- ogy and color threshold segmentation method is used to locate cable sheath marked point. Histogram most frequent method and Otsu method are used as threshold segmentation method so that cable sheath marked point is tracked in real time and cable sheath stretched length is exactly measured.

关 键 词：OPENCV 嵌入式LINUX 电缆护套拉伸长度测量 机器视觉 

分 类 号：TN98[电子电信—信息与通信工程]