NDLI: Hierarchical Hole-Filling For Depth-Based View Synthesis in FTV and 3D Video

Content Provider	IEEE Xplore Digital Library
Author	Solh, M. AlRegib, G.
Copyright Year	2007
Abstract	Three-dimensional television (3DTV) is believed to be the future of television broadcasting that would replace current 2D HDTV technology. Future 3DTV would bring a more life-like and visually immersive home entertainment experience, in which users will have the freedom to navigate through the scene to choose a different viewpoint. A desired view can be synthesized at the receiver side using depth image-based rendering (DIBR). While this approach has many advantages, one of the key challenges in DIBR is how to fill the holes caused by disocclusion regions and wrong depth values. In this paper, we propose two new approaches for disocclusion removal in DIBR. Both approaches namely hierarchical hole-filling (HHF) and depth adaptive hierarchical hole-filling eliminate the need for any smoothing or filtering of the depth map. Both techniques use a pyramid-like approach to estimate the hole pixels from lower resolution estimates of the 3D wrapped image. The lower resolution estimates involve a pseudo zero canceling plus Gaussian filtering of the wrapped image. The depth adaptive HHF incorporates the depth information to produce a higher resolution rendering around previously occluded areas. Experimental results show that HHF and depth adaptive HHF yield virtual images and stereoscopic videos that are free of geometric distortions and a better rendering quality both subjectively and objectively than traditional hole-filling approaches.
Sponsorship	IEEE Signal Processing Society
Starting Page	495
Ending Page	504
Page Count	10
File Size	1597032
File Format	PDF
ISSN	19324553
Volume Number	6
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Three dimensional displays Cameras Wrapping Image resolution Rendering (computer graphics) Stereo image processing TV 3DTV Depth based rendering free viewpoint television FTV hierarchal hole filling video quality view rendering view synthesis 3D videos
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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