Journal of System Simulation ›› 2017, Vol. 29 ›› Issue (11): 2731-2741.doi: 10.16182/j.issn1004731x.joss.201711019

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Image Segmentation and Offset Correction Based on Minimal Relative Entropy Theoryand Level Set Method

Pan Xiuqiang1, Shan Jinxiao2, Yang Caifeng3   

  1. 1. Zhejiang Industry & Trade Vocational College, Wenzhou325000, China;;
    2. Information Technology Department of China Merchants Bank, Chongqing404100, China;
    3. People's Hospital of Chongqing Shapingba District, Chongqing404100, China
  • Received:2016-05-30 Published:2020-06-05

Abstract: The new variational level set method is achieved with the combination of the traditional level set method and the energy function which is established by means of statistical model according to the minimal relative entropy.The new method isappliedto object segmentation and offset correction in intensity heterogeneous image.Object segmentation and offset correction are unified according to the evolution of the level set function, anda deviation estimation function with intrinsic smooth feature is obtained.The results prove that the overlapping areas between different tissues are significantly decreased and more accurate results are achieved. In addition, this model is not sensitive to contour initialization, and can achieve the desired effect with fewer iterations and shorter calculation time, which issuitable for the process of various automation applications in practice with large amount of data.

Key words: relative entropy, image segmentation, offset correction, level set method

CLC Number: