[IPOL discuss] [IPOL announce] new article: Exploring Patch Similarity in an Image

[announcements about the IPOL journal]

A new article is available in IPOL: http://www.ipol.im/pub/art/2021/325/

Jose-Luis Lisani, and Jean-Michel Morel,
Exploring Patch Similarity in an Image,
Image Processing On Line, 11 (2021), pp. 284–316.
https://doi.org/10.5201/ipol.2021.325

Abstract
This article describes an experimental procedure to analyze (and verify) 
the self-similarity concept in natural images and to explore the 
Gaussianity of groups of similar patches extracted from a single image. 
The self-similarity assumption means that most image patches of a 
sufficient size are repeated, of course not identically, but with small 
variations. The procedure proposed in this paper, and implemented in the 
accompanying online demo, permits to explore and visualize these 
clusters of similar patches in a given image. Thanks to it, a user can 
select a patch in an image, group all patches similar to it up to a 
translation, or to an isometry, apply PCA to the group, make visual 
tests about the Gaussianity of the set of patches, and finally apply EM 
to the set to see if it is a mixture of Gaussians.


--
IPOL - Image Processing On Line   - http://ipol.im/

contact     edit at ipol.im          - http://www.ipol.im/meta/contact/
news+feeds  twitter @IPOL_journal - http://www.ipol.im/meta/feeds/
announces   announce at list.ipol.im - http://tools.ipol.im/mm/announce/
discussions discuss at list.ipol.im  - http://tools.ipol.im/mm/discuss/