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1. 西安交通大学计算机教学实验中心,陕西 西安 710049
2. 西安交通大学计算机系,陕西 西安 710049
[ "卫颜俊(1962-),男,山西闻喜人,博士,西安交通大学讲师,主要研究方向为数据挖掘、图像处理、人工智能。" ]
[ "冯博琴(1942-),男,江苏常州人,西安交通大学教授、博士生导师,主要研究方向为数据挖掘、智能网络计算等。" ]
[ "伍卫国(1963-),男,江西吉安人,西安交通大学教授、博士生导师,主要研究方向为无线传感器网络、高性能计算、嵌入式网络系统等。" ]
网络出版日期:2016-10,
纸质出版日期:2016-10-25
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卫颜俊, 冯博琴, 伍卫国. 基于多项式一致逼近的多阈值图像分割算法[J]. 通信学报, 2016,37(10):56-64.
Yan-jun WEI, Bo-qin FENG, Wei-guo WU. Multi-threshold algorithm about image segmentation based on polynomial uniform approximation[J]. Journal on communications, 2016, 37(10): 56-64.
卫颜俊, 冯博琴, 伍卫国. 基于多项式一致逼近的多阈值图像分割算法[J]. 通信学报, 2016,37(10):56-64. DOI: 10.11959/j.issn.1000-436x.2016196.
Yan-jun WEI, Bo-qin FENG, Wei-guo WU. Multi-threshold algorithm about image segmentation based on polynomial uniform approximation[J]. Journal on communications, 2016, 37(10): 56-64. DOI: 10.11959/j.issn.1000-436x.2016196.
针对传统多阈值图像分割算法的计算复杂性,以及由图像直方图中毛刺的干扰带来的算法不稳定等缺点,提出一种基于伯恩斯坦多项式一致逼近的多阈值图像分割算法。首先根据逼近论中的威尔斯托拉斯定理构造图像直方图曲线的伯恩斯坦多项式,然后将图像直方图的峰谷值计算问题化简为伯恩斯坦多项式的极值问题,该极值问题可由伯恩斯坦多项式函数的一次、二次微分导出,最后依据这些极值和极性应用分类算法自动标注图像直方图的实际峰谷值,由此完成基于多阈值的图像分割。实验结果表明所提算法不受直方图中毛刺的干扰,算法整体稳定,冗余计算少,时间复杂度小,用时少,效率高,逼近性能和分割效果更好。
Aiming at those shortcomings of previous multi-threshold image segmentation algorithm such as large complexity and instability caused by the image histogram glitch interference
a new multi-threshold image segmentation algorithm was proposed using Bernstein polynomial to uniformly approximate histogram curve.First
according to the approximation theory of Weierstrass to construct Bernstein polynomial for the histogram curve
then more difficult peak value calculating of the histogram was reduced to the Bernstein polynomial extremal generating
that was exported easily by the first and second derivative of Bernstein polynomial function
and finally obtain the actual peak value of the image histogram by picking up these extremes and polar values and filtering through classification algorithm
and finish multi-threshold image segmentation.Experimental results show that the algorithm is insensitive for histogram glitch interference
the overall is stable
the redundant computation and time complexity are smaller
with less time and high efficiency
the approximate performance and segmentation effect are better.
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