2.50
Hdl Handle:
http://hdl.handle.net/10547/279154
Title:
Structure-aware lighting design for volume visualization
Authors:
Tao, Yubo; Lin, Hai; Dong, Feng; Wang, Chao; Clapworthy, Gordon J.; Bao, Hujun
Abstract:
Lighting design is a complex, but fundamental, problem in many fields. In volume visualization, direct volume rendering generates an informative image without external lighting, as each voxel itself emits radiance. However, external lighting further improves the shape and detail perception of features, and it also determines the effectiveness of the communication of feature information. The human visual system is highly effective in extracting structural information from images, and to assist it further, this paper presents an approach to structure-aware automatic lighting design by measuring the structural changes between the images with and without external lighting. Given a transfer function and a viewpoint, the optimal lighting parameters are those that provide the greatest enhancement to structural information - the shape and detail information of features are conveyed most clearly by the optimal lighting parameters. Besides lighting goodness, the proposed metric can also be used to evaluate lighting similarity and stability between two sets of lighting parameters. Lighting similarity can be used to optimize the selection of multiple light sources so that different light sources can reveal distinct structural information. Our experiments with several volume data sets demonstrate the effectiveness of the structure-aware lighting design approach. It is well suited to use by novices as it requires little technical understanding of the rendering parameters associated with direct volume rendering.
Citation:
Yubo Tao, Hai Lin, Feng Dong, Chao Wang, Clapworthy, G., Hujun Bao,(2012) 'Structure-Aware Lighting Design for Volume Visualization', IEEE Transactions on Visualization and Computer Graphics 18 (12):2372-2381
Publisher:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Journal:
IEEE Transactions on Visualization and Computer Graphics
Issue Date:
Dec-2012
URI:
http://hdl.handle.net/10547/279154
DOI:
10.1109/TVCG.2012.267
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6327242
Type:
Article
Language:
en
ISSN:
1077-2626
Appears in Collections:
Centre for Computer Graphics and Visualisation (CCGV)

Full metadata record

DC FieldValue Language
dc.contributor.authorTao, Yuboen_GB
dc.contributor.authorLin, Haien_GB
dc.contributor.authorDong, Fengen_GB
dc.contributor.authorWang, Chaoen_GB
dc.contributor.authorClapworthy, Gordon J.en_GB
dc.contributor.authorBao, Hujunen_GB
dc.date.accessioned2013-04-07T16:08:41Z-
dc.date.available2013-04-07T16:08:41Z-
dc.date.issued2012-12-
dc.identifier.citationYubo Tao, Hai Lin, Feng Dong, Chao Wang, Clapworthy, G., Hujun Bao,(2012) 'Structure-Aware Lighting Design for Volume Visualization', IEEE Transactions on Visualization and Computer Graphics 18 (12):2372-2381en_GB
dc.identifier.issn1077-2626-
dc.identifier.doi10.1109/TVCG.2012.267-
dc.identifier.urihttp://hdl.handle.net/10547/279154-
dc.description.abstractLighting design is a complex, but fundamental, problem in many fields. In volume visualization, direct volume rendering generates an informative image without external lighting, as each voxel itself emits radiance. However, external lighting further improves the shape and detail perception of features, and it also determines the effectiveness of the communication of feature information. The human visual system is highly effective in extracting structural information from images, and to assist it further, this paper presents an approach to structure-aware automatic lighting design by measuring the structural changes between the images with and without external lighting. Given a transfer function and a viewpoint, the optimal lighting parameters are those that provide the greatest enhancement to structural information - the shape and detail information of features are conveyed most clearly by the optimal lighting parameters. Besides lighting goodness, the proposed metric can also be used to evaluate lighting similarity and stability between two sets of lighting parameters. Lighting similarity can be used to optimize the selection of multiple light sources so that different light sources can reveal distinct structural information. Our experiments with several volume data sets demonstrate the effectiveness of the structure-aware lighting design approach. It is well suited to use by novices as it requires little technical understanding of the rendering parameters associated with direct volume rendering.en_GB
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCen_GB
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6327242en_GB
dc.rightsArchived with thanks to IEEE Transactions on Visualization and Computer Graphicsen_GB
dc.subjectautomatic lighting designen_GB
dc.subjectlighting similarityen_GB
dc.subjectstructural dissimilarityen_GB
dc.titleStructure-aware lighting design for volume visualizationen
dc.typeArticleen
dc.identifier.journalIEEE Transactions on Visualization and Computer Graphicsen_GB
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