Optimal rate allocation for view synthesis along a continuous viewpoint location in multiview imaging

2.50
Hdl Handle:
http://hdl.handle.net/10547/292597
Title:
Optimal rate allocation for view synthesis along a continuous viewpoint location in multiview imaging
Authors:
Velisavljević, Vladan ( 0000-0001-9980-9368 ) ; Cheung, Gene; Chakareski, Jacob
Abstract:
The authors consider the scenario of view synthesis via depth-image based rendering in multi-view imaging. We formulate a resource allocation problem of jointly assigning an optimal number of bits to compressed texture and depth images such that the maximum distortion of a synthesized view over a continuum of viewpoints between two encoded reference views is minimized, for a given bit budget. We construct simple yet accurate image models that characterize the pixel values at similar depths as first-order Gaussian auto-regressive processes. Based on our models, we derive an optimization procedure that numerically solves the formulated min-max problem using Lagrange relaxation. Through simulations we show that, for two captured views scenario, our optimization provides a significant gain (up to 2dB) in quality of the synthesized views for the same overall bit rate over a heuristic quantization that selects only two quantizers - one for the encoded texture images and the other for the depth images.
Citation:
Velisavljevic, V., Cheung, G. and Chakareski, J. (2010) 'Optimal rate allocation for view synthesis along a continuous viewpoint location in multiview imaging', Picture Coding Symposium (PCS), Nagoya, Japan, 8-10 December. Nagoya: IEEE, pp.482-485.
Publisher:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date:
2010
URI:
http://hdl.handle.net/10547/292597
DOI:
10.1109/PCS.2010.5702542
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5702542
Type:
Conference papers, meetings and proceedings
Language:
en
ISBN:
9781424471348
Appears in Collections:
Centre for Wireless Research (CWR)

Full metadata record

DC FieldValue Language
dc.contributor.authorVelisavljević, Vladanen_GB
dc.contributor.authorCheung, Geneen_GB
dc.contributor.authorChakareski, Jacoben_GB
dc.date.accessioned2013-05-21T15:20:14Z-
dc.date.available2013-05-21T15:20:14Z-
dc.date.issued2010-
dc.identifier.citationVelisavljevic, V., Cheung, G. and Chakareski, J. (2010) 'Optimal rate allocation for view synthesis along a continuous viewpoint location in multiview imaging', Picture Coding Symposium (PCS), Nagoya, Japan, 8-10 December. Nagoya: IEEE, pp.482-485.en_GB
dc.identifier.isbn9781424471348-
dc.identifier.doi10.1109/PCS.2010.5702542-
dc.identifier.urihttp://hdl.handle.net/10547/292597-
dc.description.abstractThe authors consider the scenario of view synthesis via depth-image based rendering in multi-view imaging. We formulate a resource allocation problem of jointly assigning an optimal number of bits to compressed texture and depth images such that the maximum distortion of a synthesized view over a continuum of viewpoints between two encoded reference views is minimized, for a given bit budget. We construct simple yet accurate image models that characterize the pixel values at similar depths as first-order Gaussian auto-regressive processes. Based on our models, we derive an optimization procedure that numerically solves the formulated min-max problem using Lagrange relaxation. Through simulations we show that, for two captured views scenario, our optimization provides a significant gain (up to 2dB) in quality of the synthesized views for the same overall bit rate over a heuristic quantization that selects only two quantizers - one for the encoded texture images and the other for the depth images.en_GB
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCen_GB
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5702542en_GB
dc.subjectautoregressive processesen_GB
dc.subjectimage textureen_GB
dc.subjectrate allocationen_GB
dc.titleOptimal rate allocation for view synthesis along a continuous viewpoint location in multiview imagingen
dc.typeConference papers, meetings and proceedingsen
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