A method for recognizing overlapping elliptical bubbles in bubble image

A method for recognizing overlapping elliptical bubbles in bubble image
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气泡图像中重叠椭圆气泡的识别方法

DOI:
10.1016/j.patrec.2012.03.027
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发表时间:
2012-09
影响因子:
5.1
通讯作者:
Liu, Yin-Mingzi
Liu, Yin-Mingzi
中科院分区:
计算机科学3区
文献类型:
--
作者:
Zhang, Wen-Hui;Jiang, Xiaoya;Liu, Yin-Mingzi

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直接成像技术是估算气泡尺寸分布(BSD)的一种有效而简便的方法。但当气含率大于1%时,重叠气泡对BSD有影响。提出了一种利用重叠椭圆气泡识别来确定气泡大小的新方法。该方法主要包括轮廓分割和线段分组两个步骤。轮廓分割是基于控制点序列中的凹点始终是连接点的假设,线段分组主要基于平均距离偏差准则。用模拟图像和真实气泡图像对该方法进行了评价。实验结果表明,该方法对重叠椭圆气泡的识别是有效的,在其他椭圆目标识别中也具有一定的应用潜力。最后,用两种方法进行了BSD估计。发现忽略法估计的气泡尺寸(如d10或d32)略小于识别法估计的气泡尺寸。
Direct imaging technology is an effective and convenient method for the estimation of bubble size distribution (BSD). However, overlapping bubble has an influence on BSD when gas holdup is more than 1%. In this paper, we present a new method of overlapping elliptical bubble recognition to determine bubble size. The method mainly includes two steps: contour segmentation and segment grouping. Contour segmentation is on the assumption that the concave points in the dominant point sequence are always the connecting points, and segment grouping is mainly based on the average distance deviation criterion. Both simulated images and real bubble images are used to evaluate this new method. The results show that it is effective in the recognition of overlapping elliptical bubbles and have a potential in other elliptical object recognition. In the last, two methods are used for BSD estimation. It is found that the bubble size (such d10 or d32) estimated by the ignore method is slightly smaller than that estimated by the recognition method.
DOI: 10.1016/0167-8655(95)80007-g
发表时间: 1995-06
期刊: Pattern Recognit. Lett.
影响因子: --
作者:
S. Pei;Ji-hwei Horng
通讯作者: S. Pei;Ji-hwei Horng
DOI: 10.1007/3-540-57233-3_33
发表时间: 1993-09
期刊: --
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发表时间: 1993-10
期刊: Pattern Recognit.
影响因子: --
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DOI: 10.1088/0957-0233/16/9/007
发表时间: 2005-09-01
影响因子: 2.4
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DOI: 10.1016/s0017-9310(05)80290-x
发表时间: 1993-03-01
影响因子: 5.2
作者:
LIU, TJ;BANKOFF, SG
通讯作者: BANKOFF, SG