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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 22 — Nov. 15, 2007
  • pp: 3302–3304

Improved locally adaptive least-squares detection of differences in images

Abdellatif Gherabi, Henri H. Arsenault, and Pascuala García-Martínez  »View Author Affiliations

Optics Letters, Vol. 32, Issue 22, pp. 3302-3304 (2007)

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We introduce a method for change detection under nonuniform changes of intensity using an improved least-squares method. A locally adaptive normalizing window is correlated with the two images, and a morphological postprocessing is then applied to isolate objects that have been added or removed from the scene. We use a modification of the least-squares solution to get rid of clutter caused by intensity changes that do not satisfy the model assumed for the least-squares solution.

© 2007 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(150.0150) Machine vision : Machine vision

ToC Category:
Image Processing

Original Manuscript: July 5, 2007
Revised Manuscript: September 7, 2007
Manuscript Accepted: October 9, 2007
Published: November 6, 2007

Abdellatif Gherabi, Henri H. Arsenault, and Pascuala García-Martínez, "Improved locally adaptive least-squares detection of differences in images," Opt. Lett. 32, 3302-3304 (2007)

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