.png){kind=icon}
返回
A weighted parameter identification PDE-constrained optimization for inverse image denoising problem
.png){kind=icon}
PRE
AI
DOI：10.1007/s00371-021-02162-x.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This paper treats the inverse denoising problem which aims to compute simultaneously the clean image and the weighting parameter lambda. The formulated denoising problem is posed using a partial differential equation (PDE)-constrained optimization model. The minimized function imposes a Tikhonov regularization on the estimated lambda, while the proposed PDE encompasses two high-order diffusive tensors. The particularity of this PDE is that it does not over-smooth homogeneous regions and preserves sharp edges during the denoising process, even if its degree is high. A new optimization procedure to compute the weighting parameter is also elaborated inspired from the nonsmooth Primal-dual algorithm. This leads to control of the diffusivity rate generated by the two diffusive operators. Finally, expressive results show that the computed spatial parameter lambda leads to obtain a pleasant clean image. This is also confirmed by numerous comparisons with other competitive denoising approaches.
Keyword:
Image restoration
PDE-constrained
Parameter identification
Primal-dual
Tensor diffusion
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
2.9
论文数:
4.6K
被引数:
6.5K
机构
引用论文
Prominent Audit Clients and the Relation between Discretionary Accruals and Non-Audit Service Fees
PREAI
分享收藏分享收藏
Can the initial success of the Malawi ART scale-up programme be sustained? The example of Queen Elizabeth Central Hospital, Blantyre马里的ART规模扩大计划能否持续其初步成功？——以布兰太尔的皇后伊丽莎白中心医院为例.png)
AIDS Care
AIDS CareIF0
PREAI
分享收藏
Characteristics of soil physicochemical properties and enzyme activities over different reclaimed years in a copper tailings dam不同复垦年份铜尾矿库土壤理化性质及酶活性的特征
IF0
PREAI
分享收藏
查看更多内容