NDLI: Object subsampling strategies to improve computational performance

Content Provider	IEEE Xplore Digital Library
Author	Hajdu, A. Veres, P. Tanacs, A. Harangozo, R.
Copyright Year	2009
Description	Author affiliation: Faculty of Informatics, University of Debrecen, 4010, POB 12, Hungary (Hajdu, A.; Veres, P.) \|\| Institute of Informatics, University of Szeged, 6720, Árpád sq. 2., Hungary (Tanacs, A.) \|\| Kripto Kft., 4029 Debrecen, Hungary (Harangozo, R.)
Abstract	We investigate object simplification methods based on Centroidal Voronoi Tesselation (CVT) that share the possibility of great speed-ups in various scenarios. We propose Constrained CVT to sample points from the object boundary and the Region-based CVT to be able to subsample lower dimensional objects, as well. Moreover we introduce custom weight functions based on object properties. Thus, we can be more specific on what are the important parts of the subsampled object. We also list several novel applications corresponding to the theoretical achivements presented. The advantages of applying the subsampling strategies are presented for registration, human detection, and the segmentation of the retinal vascular system, respectively. Quantitative results are shown to check the deterioration of the accuracy with the level of subsampling, and the computational gain. We also make comparisons with other naive (e.g. random) subsampling methods.
Starting Page	438
Ending Page	443
File Size	802732
Page Count	6
File Format	PDF
ISBN	9789531841351
ISSN	18455921
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-16
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Clouds Informatics Humans Retina Object detection Performance gain Solids Image processing Diabetes Retinopathy
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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