MPEG-7 based shape retrieval with robustness against partial occlusion

Michael Hoeynck; Jens-Rainer Ohm

doi:10.1117/12.476249

10 January 2003 MPEG-7 based shape retrieval with robustness against partial occlusion

Michael Hoeynck, Jens-Rainer Ohm

Proceedings Volume 5021, Storage and Retrieval for Media Databases 2003; (2003) https://doi.org/10.1117/12.476249
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

Object shape features are powerful when used in similarity search-&-retrieval and object recognition because object shape is usually strongly linked to object functionality and identity. Many applications, including those concerned with visual objects retrieval or indexing, are likely to use shape features. Those systems have to cope with scaling, rotation, deformation and partial occlusion of the objects to be described. The ISO standard MPEG-7 contains different shape descriptors, where we focus especially on the region-shape descriptor. Since we found, that the region-shape descriptor is not very robust against partial occlusion, we propose a slightly changed feature extraction method, which is based on central-moments. Further, we compare our method with the original region-shape implementation and show that, applying the proposed changes, the robustness of the region-shape descriptor against partial occlusions can be significantly increased.

Citation Download Citation

Michael Hoeynck and Jens-Rainer Ohm "MPEG-7 based shape retrieval with robustness against partial occlusion", Proc. SPIE 5021, Storage and Retrieval for Media Databases 2003, (10 January 2003); https://doi.org/10.1117/12.476249

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available