图像检索技术在喷涂件表面质量检测中的应用

摘要

针对生产线喷涂件表面喷涂质量检测问题，设计了基于多特征的图像检索系统，用来检测喷涂件表面喷涂效果。基于图像的SIFT特征、纹理、颜色直方图构建图像检索系统；通过CCD图像传感器获取样例图像作为查询样本，由在线获取的图像流构成图像库，定义相似度函数及阈值，在图像流中查找是否存在满足阈值的图像。通过仿真实验表明：该方法能较准确地检测出生产线中的残次产品，为喷涂产品表面质量检测提供一个新的思路。%For quality evaluation on spraying production,we proposed a monitoring system based on image re⁃trieval. Firstly,we designed a contend-based image retrieval system based on SIFT feature,texture feature and color histogram. In the system we choose image from CCD imaging sensors as query sample and image database is made up of online images. Similar function and threshold value is defined and we look for images which fit threshold value. Simulation experiments show that the system can accurately detect the defect prod⁃ucts and provide a good idea for the product quality testing.