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Photometric registration by adaptive high dynamic range image generation for augmented reality

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dc.contributor.author Nishina, Yusaku en
dc.contributor.author Okumura, Bunyo en
dc.contributor.author Kanbara, Masayuki en
dc.contributor.author Yokoya, Naokazu en
dc.date.accessioned 2016-12-26T06:41:23Z en
dc.date.available 2016-12-26T06:41:23Z en
dc.date.issued 2008 en
dc.identifier.uri http://hdl.handle.net/10061/11224 en
dc.description ISMAR 2008 : 7th IEEE and ACM International Symposium on Mixed and Augmented Reality , Sep 15-18, 2008 , Cambridge, UK en
dc.description.abstract This paper describes photometric registration for augmented reality (AR) using a high-dynamic-range (HDR) image. In photorealistic AR, estimating the lighting environment of virtual objects is difficult because of low dynamic range cameras. In order to overcome this problem, we propose a method that estimates the lighting environment from an HDR image and renders virtual objects using an HDR environment map. Virtual objects are overlaid in real-time by adjusting the dynamic range of the rendered image with tone mapping according to the exposure time of the camera. The HDR image is generated from multiple images captured with various exposure times. We have found through experimentation that the updating rate is improved by effectively limiting the dynamic range, depending on the exposure time. We have verified the effect of limiting the dynamic range on the reality of virtual objects. en
dc.language.iso en en
dc.publisher IEEE en
dc.rights Copyright c 2008 IEEE en
dc.subject augmented reality en
dc.subject image registration en
dc.subject photometry en
dc.subject adaptive high dynamic range image generation en
dc.subject augmented reality en
dc.subject photometric registration en
dc.subject tone mapping en
dc.subject virtual object rendering en
dc.subject Augmented reality en
dc.subject Cameras en
dc.subject Dynamic range en
dc.subject Image generation en
dc.subject Layout en
dc.subject Light sources en
dc.subject Multimedia systems en
dc.subject Photometry en
dc.subject Reflectivity en
dc.subject Rendering (computer graphics) en
dc.subject H.5.1 [Information interfaces and presentation] en
dc.subject Multimedia Information Systems-Artificial en
dc.subject augmented en
dc.subject and virtual realities en
dc.title Photometric registration by adaptive high dynamic range image generation for augmented reality en
dc.type.nii Conference Paper en
dc.textversion Author en
dc.identifier.spage 53 en
dc.identifier.epage 56 en
dc.relation.doi 10.1109/ISMAR.2008.4637323 en
dc.identifier.NAIST-ID 73292542 en
dc.identifier.NAIST-ID 73292286 en

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