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Linear Estimation of 4-D Illumination Light Field from Diffuse Reflections

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dc.contributor.author Aoto, Takahito en
dc.contributor.author Sato, Tomokazu en
dc.contributor.author Mukaigawa, Yasuhiro en
dc.contributor.author Yokoya, Naokazu en
dc.date.accessioned 2016-12-26T06:41:27Z en
dc.date.available 2016-12-26T06:41:27Z en
dc.date.issued 2013 en
dc.identifier.issn 0730-6512 en
dc.identifier.uri http://hdl.handle.net/10061/11253 en
dc.description ACPR 2013 : 2nd IAPR Asian Conference on Pattern Recognition , Nov 5-8, 2013 , Okinawa, Japan en
dc.description.abstract This paper proposes a linear estimation method for 4-D illumination light field using an inverse lighting framework. Although lighting environments have conventionally been modeled by the combination of point light sources or a spherical light field map, complex light sources such as an ordinary flashlight with lenses and reflectors, can not be correctly modeled by these approaches. In order to correctly model these complex light sources, we employ 4-D illumination light field. Unlike conventional work, we decompose observed intensities on a diffuse-reflection board into intensities of 4-D light rays by solving a linear system. We validate the effectiveness of the proposed method through the experiments on real and virtual environments. en
dc.language.iso en en
dc.publisher IEEE en
dc.rights Copyright c 2013 IEEE en
dc.subject estimation theory en
dc.subject light propagation en
dc.subject light scattering en
dc.subject light sources en
dc.subject lighting en
dc.subject 4D illumination light field en
dc.subject 4D light rays en
dc.subject complex light sources en
dc.subject diffuse-reflection board en
dc.subject inverse lighting framework en
dc.subject lighting environments en
dc.subject linear estimation method en
dc.subject linear system en
dc.subject point light sources en
dc.subject real environments en
dc.subject spherical light field map en
dc.subject virtual environments en
dc.subject Cameras en
dc.subject Estimation en
dc.subject Harmonic analysis en
dc.subject Lenses en
dc.subject Light sources en
dc.subject Lighting en
dc.subject Linear systems en
dc.title Linear Estimation of 4-D Illumination Light Field from Diffuse Reflections en
dc.type.nii Conference Paper en
dc.textversion Author en
dc.identifier.spage 496 en
dc.identifier.epage 500 en
dc.relation.doi 10.1109/ACPR.2013.141 en
dc.identifier.NAIST-ID 74650524 en
dc.identifier.NAIST-ID 73292633 en
dc.identifier.NAIST-ID 73292286 en

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