Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spectral image reconstruction using an edge preserving spatio-spectral Wiener estimation

Not Accessible

Your library or personal account may give you access

Abstract

Reconstruction of spectral images from camera responses is investigated using an edge preserving spatio-spectral Wiener estimation. A Wiener denoising filter and a spectral reconstruction Wiener filter are combined into a single spatio-spectral filter using local propagation of the noise covariance matrix. To preserve edges the local mean and covariance matrix of camera responses is estimated by bilateral weighting of neighboring pixels. We derive the edge-preserving spatio-spectral Wiener estimation by means of Bayesian inference and show that it fades into the standard Wiener reflectance estimation shifted by a constant reflectance in case of vanishing noise. Simulation experiments conducted on a six-channel camera system and on multispectral test images show the performance of the filter, especially for edge regions. A test implementation of the method is provided as a MATLAB script at the first author’s website.

© 2009 Optical Society of America

Full Article  |  PDF Article
More Like This
Piecewise Wiener estimation for reconstruction of spectral reflectance image by multipoint spectral measurements

Yuri Murakami, Masahiro Yamaguchi, and Nagaaki Ohyama
Appl. Opt. 48(11) 2188-2202 (2009)

Color reproduction from low-SNR multispectral images using spatio-spectral Wiener estimation

Yuri Murakami, Ken Fukura, Masahiro Yamaguchi, and Nagaaki Ohyama
Opt. Express 16(6) 4106-4120 (2008)

Reflectance reconstruction for multispectral imaging by adaptive Wiener estimation

Hui-Liang Shen, Pu-Qing Cai, Si-Jie Shao, and John H. Xin
Opt. Express 15(23) 15545-15554 (2007)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved