Prelib: PDE-based restoration of lost image blocks

被引：0

作者：

Ajorloo, Hossien ^{[1
]}

Manzuri-Shalmani, M. -T. ^{[2
]}

Lakdashti, A. ^{[3
]}

机构：

[1] ITRC, IT Fac, Multimedia Res Grp, Tehran, Iran

[2] Sharif Univ Technol, Tehran, Iran

[3] Rouzbahan Inst Higher Edu, Sari, Iran

来源：

PROCEEDINGS OF THE 2007 15TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING | 2007年

关键词：

image enhancement; partial differential equations; discrete Fourier transforms;

D O I：

10.1109/ICDSP.2007.4288616

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper, restoration of damaged una-e blocks with large sizes is considered and Discrete Fourier Transform (DFT)-based approach is developed for this purpose, which require., interventions of both source encoder and decoder. Use of lossy codees causes a processing error leading to noisy images after recovery. A Partial Differential Equation (PDE)-based image enhancement approach is proposed to reduce the visual effect of this processing error. Experimental results show that our method can restore large size lost blocks of images, which overcomes previously proposed approaches.

引用

页码：451 / +

页数：2

共 5 条

[1] Efficient restoration technique for missing blocks in images [J].