山东科学 ›› 2021, Vol. 34 ›› Issue (2): 90-95.doi: 10.3976/j.issn.1002-4026.2021.02.012

• 其他研究论文 • 上一篇    下一篇

基于偏微分方程的图像修复方法研究

苗晓,张新东*,唐泉,杨思渊   

  1. 新疆师范大学 数学科学学院,新疆 乌鲁木齐 830017
  • 收稿日期:2020-06-04 出版日期:2021-04-13 发布日期:2021-04-14
  • 通信作者: 张新东(1981—), 男, 博士,副教授, 研究方向为微分方程数值模拟及应用。E-mail: 422560939@qq.com
  • 作者简介:苗晓(1994—), 女, 硕士研究生, 研究方向为微分方程数值模拟及应用。E-mail: 3239847731@qq.com
  • 基金资助:
    国家自然科学基金(11861068; 新疆维吾尔自治区自然科学基金面上科学基金(2018D01A27

Image restoration method based on partial differential equations

MIAO Xiao, ZHANG Xin-dong*,TANG Quan,YANG Si-yuan   

  1. School of Mathematical Sciences, Xinjiang Normal University, Urumqi 830017, China
  • Received:2020-06-04 Online:2021-04-13 Published:2021-04-14

摘要: 针对全变分(TV)模型在各参考点具有相同权值的情况,以待修复区域像素点的梯度值为信息构造出一个扩散函数,利用此扩散函数控制各参考点的权值;结合非线性扩散思想,提出一个针对时间参数的自适应迭代函数。扩散函数与自适应迭代函数共同作用,进行图像修复。实验结果表明,本文提出的新方法修复效果好且用时少。

关键词: 图像修复, 全变分算法, 扩散函数, 自适应

Abstract: For the case in which the original model has the same weight at each reference point on a TV model, the paper propose a new concept whereby a diffusion function based on the gradient value of the pixels in the area to be repaired is constructed. The diffusion function is used to control the value of the contribution of each reference point. In addition, an adaptive iterative function for time parameters based on the idea of nonlinear diffusion is proposed. The diffusion function and adaptive iterative function work together to complete the image inpainting. Results of the experiment reveal that the new method proposed in this paper can achieve good processing effect in less time.

Key words: image restoration, TV algorithm, diffusion function, adaptive

中图分类号: 

  • TP391