Regularized adaptive high-resolution image reconstruction considering inaccurate subpixel registration

Eun Sil Lee, Moon Gi Kang

Research output: Contribution to journalArticle

148 Citations (Scopus)

Abstract

In this paper, we propose a high-resolution image reconstruction algorithm considering inaccurate subpixel registration. A regularized iterative reconstruction algorithm is adopted to overcome the ill-posedness problem resulting from inaccurate subplxel registration. In particular, we use multichannel image reconstruction algorithms suitable for applications with multiframe environments. Since the registration error in each low-resolution image has a different pattern, the regularization parameters are determined adaptively for each channel. We propose two methods for estimating the regularization parameter automatically. The proposed algorithms are robust against the registration error noise, and they do not require any prior information about the original image or the registration error process. Information needed to determine the regularization parameter and to reconstruct the image is updated at each iteration step based on the available partially reconstructed image. Experimental results indicate that the proposed algorithms outperform conventional approaches in terms of both objective measurements and visual evaluation.

Original languageEnglish
Pages (from-to)826-837
Number of pages12
JournalIEEE Transactions on Image Processing
Volume12
Issue number7
DOIs
Publication statusPublished - 2003 Jul 1

Fingerprint

Sub-pixel
Image Reconstruction
Inaccurate
Image reconstruction
Registration
High Resolution
Regularization Parameter
Reconstruction Algorithm
Ill-posedness
Prior Information
Image resolution
Iterative Algorithm
Iteration
Evaluation
Experimental Results

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Software
  • Theoretical Computer Science
  • Computational Theory and Mathematics
  • Computer Vision and Pattern Recognition

Cite this

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Regularized adaptive high-resolution image reconstruction considering inaccurate subpixel registration. / Lee, Eun Sil; Kang, Moon Gi.

In: IEEE Transactions on Image Processing, Vol. 12, No. 7, 01.07.2003, p. 826-837.

Research output: Contribution to journalArticle

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