Still and Video Image Analysis

Fast joint separation and segmentation of mixed images

[+] Author Affiliations
Hichem Snoussi, Ali Mohammad-Djafari

Laboratoire des Signaux et Syste`mes (L2S), Supe´lec, Plateau de Moulon, 91192 Gif-sur-Yvette Cedex, France E-mail: snoussi@lss.supelec.fr

J. Electron. Imaging. 13(2), 349-361 (Apr 01, 2004). doi:10.1117/1.1666873
History: Received Feb. 10, 2003; Revised Aug. 4, 2003; Accepted Aug. 12, 2003; Online April 01, 2004
Text Size: A A A

We consider the problem of the blind separation of noisy instantaneously mixed images. The images are modeled by hidden Markov fields with unknown parameters. Given the observed images, we give a Bayesian formulation and we propose a fast version of the MCMC (Monte Carlo Markov Chain) algorithm based on the Bartlett decomposition for the resulting data augmentation problem. We separate the unknown variables into two categories: 1. The parameters of interest which are the mixing matrix, the noise covariance and the parameters of the sources distributions. 2. The hidden variables which are the unobserved sources and the unobserved pixel segmentation labels. The proposed algorithm provides, in the stationary regime, samples drawn from the posterior distributions of all the variables involved in the problem leading to great flexibility in the cost function choice. Finally, we show the results for both synthetic and real data to illustrate the feasibility of the proposed solution. © 2004 SPIE and IS&T.

© 2004 SPIE and IS&T

Topics

Matrices

Citation

Hichem Snoussi and Ali Mohammad-Djafari
"Fast joint separation and segmentation of mixed images", J. Electron. Imaging. 13(2), 349-361 (Apr 01, 2004). ; http://dx.doi.org/10.1117/1.1666873


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.