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J4  2011, Vol. 45 Issue (2): 222-227    DOI: 10.3785/j.issn.1008-973X.2011.02.005
机械工程     
基于水平集的转炉出钢图像钢渣检测方法
江俊, 李培玉, 唐任仲
浙江大学 机械与能源工程学院,浙江 杭州 310027
Level set based slag detection method for BOF
vessels tapping images
JIANG Jun, LI Pei-yu, TANG Ren-zhong
College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China
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摘要:

针对转炉出钢红外灰度图像具有噪声大、物体间灰度差较小和边缘模糊等特点,难以实现区域分割及下渣检测的问题,提出一种基于水平集的转炉出钢图像钢渣检测方法.根据钢水与钢渣的轮廓分布特点对Chan-vese活动轮廓模型进行改进,构造双轮廓曲线的演化函数.利用水平集方法求解模型,并通过最小化双轮廓曲线的演化函数来获得分割区域及其灰度特征值.最后通过分割区域的灰度特征值识别钢水与钢渣及计算钢渣含量,完成钢渣检测.实验表明,该方法具有较高的抗噪性和准确性,能很好地应用于红外热成像转炉出钢下渣检测.

Abstract:

Infrared images of basic oxygen furnace (BOF) vessels tapping stream always had harsh noise,small grayscale difference between target objects and blur edges. It’s difficult to achieve the target region segmentation and slag detection. In order to solve these problems, a level set based slag detection method for BOF vessels tapping images was put forward. First, according to distribution characteristics of molten steel and slag contours, the active contour model of Chan-vese were improved to construct a double-contours of curve evolution function. Then using the level set method to solve model, the segmentation of the region and its gray value could be obtained easily by minimizing double-contours of curve evolution. Finally, in terms of regions’ gray values, molten steel and slag could be identified, and slag ratio be calculated. Experiment shows the high adaptability, noise immunity and accuracy of our method, which can be impressive usefully implemented in Infrared thermal imaging slag detection for BOF vessels tapping.

出版日期: 2011-03-17
:  TF 713.7  
通讯作者: 李培玉,男,副教授.     E-mail: lipeiyu@zju.edu.cn
作者简介: 江俊(1983—),男,浙江杭州人,博士生,从事转炉出钢下渣检测及图像处理的研究.E-mail: heifetz@zju.edu.cn
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引用本文:

江俊, 李培玉, 唐任仲. 基于水平集的转炉出钢图像钢渣检测方法[J]. J4, 2011, 45(2): 222-227.

JIANG Jun, LI Pei-yu, TANG Ren-zhong. Level set based slag detection method for BOF
vessels tapping images. J4, 2011, 45(2): 222-227.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.02.005        http://www.zjujournals.com/eng/CN/Y2011/V45/I2/222

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