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Article: The design and construction of a movable image-based rendering system and its application to multiview conferencing

TitleThe design and construction of a movable image-based rendering system and its application to multiview conferencing
Authors
Issue Date2012
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/content/120889/
Citation
Journal of Signal Processing Systems, 2012, v. 67 n. 3, p. 305-316 How to Cite?
AbstractImage-based rendering (IBR) is an promising technology for rendering photo-realistic views of scenes from a collection of densely sampled images or videos. It provides a framework for developing revolutionary virtual reality and immersive viewing systems. While there has been considerable progress recently in the capturing, storage and transmission of image-based representations, most multiple camera systems are designed to be stationary and hence their ability to cope with moving objects and dynamic environment is somewhat limited. This paper studies the design and construction of a movable image-based rendering system based on a class of dynamic representations called plenoptic videos, its associated video processing algorithms and an application to multiview audio-visual conferencing. It is constructed by mounting a linear array of 8 video cameras on an electrically controllable wheel chair and its motion is controllable manually or remotely through wireless LAN by means of additional hardware circuitry. We also developed a real-time object tracking algorithm and utilize the motion information computed to adjust continuously the azimuth or rotation angle of the movable IBR system in order to cope with a given moving object in a large environment. Due to imperfection in tracking and mechanical vibration encountered in movable systems, the videos may appear very shaky and a new video stabilization technique is proposed to overcome this problem. The usefulness of the system is illustrated by means of a multiview conferencing application using a multiview TV display. Through this pilot study, we hope to disseminate useful experience for the design and construction of movable IBR systems with improved viewing freedom and ability to cope with moving object in a large environment.
Persistent Identifierhttp://hdl.handle.net/10722/169225
ISSN
2015 Impact Factor: 0.508
2015 SCImago Journal Rankings: 0.262
ISI Accession Number ID
Funding AgencyGrant Number
GRF from Hong Kong Research Grant Council
Hong Kong Innovative Technology Fund
Funding Information:

This project is supported by a GRF grant from the Hong Kong Research Grant Council and a tier-3 grant from the Hong Kong Innovative Technology Fund. The technical support of Mr. James L. C. Koo is gratefully acknowledged.

 

DC FieldValueLanguage
dc.contributor.authorChan, SCen_US
dc.contributor.authorZhu, ZYen_US
dc.contributor.authorNg, KTen_US
dc.contributor.authorWang, Cen_US
dc.contributor.authorZhang, Sen_US
dc.contributor.authorZhang, ZGen_US
dc.contributor.authorYe, Zen_US
dc.contributor.authorShum, HY-
dc.date.accessioned2012-10-18T08:46:12Z-
dc.date.available2012-10-18T08:46:12Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Signal Processing Systems, 2012, v. 67 n. 3, p. 305-316en_US
dc.identifier.issn1939-8018en_US
dc.identifier.urihttp://hdl.handle.net/10722/169225-
dc.description.abstractImage-based rendering (IBR) is an promising technology for rendering photo-realistic views of scenes from a collection of densely sampled images or videos. It provides a framework for developing revolutionary virtual reality and immersive viewing systems. While there has been considerable progress recently in the capturing, storage and transmission of image-based representations, most multiple camera systems are designed to be stationary and hence their ability to cope with moving objects and dynamic environment is somewhat limited. This paper studies the design and construction of a movable image-based rendering system based on a class of dynamic representations called plenoptic videos, its associated video processing algorithms and an application to multiview audio-visual conferencing. It is constructed by mounting a linear array of 8 video cameras on an electrically controllable wheel chair and its motion is controllable manually or remotely through wireless LAN by means of additional hardware circuitry. We also developed a real-time object tracking algorithm and utilize the motion information computed to adjust continuously the azimuth or rotation angle of the movable IBR system in order to cope with a given moving object in a large environment. Due to imperfection in tracking and mechanical vibration encountered in movable systems, the videos may appear very shaky and a new video stabilization technique is proposed to overcome this problem. The usefulness of the system is illustrated by means of a multiview conferencing application using a multiview TV display. Through this pilot study, we hope to disseminate useful experience for the design and construction of movable IBR systems with improved viewing freedom and ability to cope with moving object in a large environment.-
dc.languageengen_US
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/content/120889/en_US
dc.relation.ispartofJournal of Signal Processing Systemsen_US
dc.rightsThe original publication is available at www.springerlink.comen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleThe design and construction of a movable image-based rendering system and its application to multiview conferencingen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1939-8018&volume=67&spage=305&epage=316&date=2012&atitle=The+Design+and+Construction+of+a+Movable+Image-Based+Rendering+System+and+Its+Application+to+Multiview+Conferencingen_US
dc.identifier.emailChan, SC: ascchan@hkucc.hku.hken_US
dc.identifier.emailZhu, ZY: zyzhueee@hku.hken_US
dc.identifier.emailNg, KT: ktng@graduate.hku.hken_US
dc.identifier.emailZhang, S: jeffsz@hku.hken_US
dc.identifier.emailZhang, ZG: zgzhang@eee.hku.hk-
dc.identifier.authorityChan, SC=rp00094en_US
dc.identifier.authorityNg, KT=rp00157en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1007/s11265-010-0566-6-
dc.identifier.scopuseid_2-s2.0-84871529430-
dc.identifier.hkuros191170en_US
dc.identifier.hkuros211930-
dc.identifier.volume67en_US
dc.identifier.issue3-
dc.identifier.spage305en_US
dc.identifier.epage316en_US
dc.identifier.isiWOS:000303383700009-
dc.publisher.placeUnited States-
dc.identifier.citeulike8401903-

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