基于计算机视觉的浮选泡沫颜色及尺寸测量方法  

Froth color and size measurement method for flotation based on computer vision

作　　者：阳春华[1] 周开军[1] 牟学民[1] 桂卫华[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083

出　　处：《仪器仪表学报》2009年第4期717-721,共5页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金重点项目(60634020);国家自然科学基金(60874069;60804037);国家863计划(2006AA04Z181)资助项目

摘　　要：矿物浮选过程中,为了使浮选过程处于最优运行状态,获得量化的泡沫颜色与尺寸参数就至关重要。提出了一种基于计算机视觉的浮选泡沫颜色及尺寸测量方法,通过高性能彩色CCD摄像机获取泡沫图像,在此基础上采用相对红色分量测量泡沫颜色,并提出采用面积重构改进变换为分水岭变换提供标识,从而完成泡沫图像分割,对分割后的气泡区域进行象素标定得到气泡实际尺寸。工业运行数据分析结果表明,该方法能有效地测量浮选泡沫颜色及尺寸。Froth quantitative parameters such as color and size are crucial to optimal running of mineral flotation process. In this paper, a measurement method for flotation froth color and size based on computer vision is presented. Froth images are captured by using a high performance color CCD camera, and the froth color is measured based on relative redness component. The mark image for watershed transform is provided by an improved area-reconstruction transform. On the basis of segmentation image, the bubble size is measured by calibrating segmentation regions pixels. The industrial application data analysis results show that the proposed method can measure the flotation froth color and size effectively.

关 键 词：浮选 泡沫颜色 气泡尺寸 相对红色分量 分水岭变换 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]