基于ARM平台的金属晶粒度测定系统  

Average Grain Size Determination System based on ARM Platform

作　　者：吴越[1] 吕晓东[1] 王敬涛 李秀春 

机构地区：[1]北京航空航天大学,北京100191 [2]莱州华银试验仪器有限公司,山东莱州261400

出　　处：《工程与试验》2015年第4期52-55,共4页Engineering and Test

摘　　要：通过V4L2协议搭建ARM平台上的图像处理系统,对金相图片进行相应的处理,提取晶界边缘,进而对某金属的金相照片平均晶粒度进行了精确测定。测量结果表明,改进后的图像分割方法对图像质量要求相对较低,晶界明显。通过对多种金属的平均晶粒度进行测定,结果都能够达到金属晶粒度测定国家标准的要求。An image processing system based on ARM protocol is built on the basis of V4L2, and the grain boundary is extracted by the image processing system. Then an accurate determination of the average grain size of a metal is carried out. The measurement results show that this improved method has lower image quality requirements, and the boundary of grain is clear. By determining of the average grain size of a variety of metals, the results are able to meet the requirements of the national standard for the determination of metal grain size.

关 键 词：嵌入式 晶粒度 图像处理 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]