The segmentation of Thangka damaged regions based on the local distinction

2016 International Conference on Communication, Image and Signal Processing

物理学;无线电电子学;计算机科学

Xuehui, Bi^1 ; Huaming, Liu^1 ; Xiuyou, Wang^1 ; Weilan, Wang^2 ; Yashuai, Yang^1

Department of Computer and Information Engineering, Fuyang Normal College, Fuyang

236000, China^1

Mathematics and Computer Science, Northwest University for Nationalities, Lanzhou

730030, China^2

关键词: Cultural relics;    Damaged region;    Local complexity;    Over segmentation;    Segmentation algorithms;    Segmentation results;    Surrounding regions;    Transition zones;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/787/1/012010/pdf
DOI  :  10.1088/1742-6596/787/1/012010

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Damaged regions must be segmented before digital repairing Thangka cultural relics. A new segmentation algorithm based on local distinction is proposed for segmenting damaged regions, taking into account some of the damaged area with a transition zone feature, as well as the difference between the damaged regions and their surrounding regions, combining local gray value, local complexity and local definition-complexity (LDC). Firstly, calculate the local complexity and normalized; secondly, calculate the local definition-complexity and normalized; thirdly, calculate the local distinction; finally, set the threshold to segment local distinction image, remove the over segmentation, and get the final segmentation result. The experimental results show that our algorithm is effective, and it can segment the damaged frescoes and natural image etc.