| Presentation | 1998/11/13 Spectral Estimation of Illumination and Object Surface by Means of a Six-Color Camera Etsushi Takahashi, Shoji Tominaga, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A method is described for estimating both the spectral-power distribution of Illumination and the surface-spectral reflectances of objects by mean of a six-color camera. The dynamic range of the camera is extended for sensing the high intensity level of highlights. We suppose in a scene that the object surfaces are made of an inhomogeneous dielectric material which is described by dichromatic reflection model. The process for estimating the spectral information is composed of several steps of the finite-dimensional linear model representation of wavelength functions, highlight detection and illuminant estimation, data normalization and image segmentation, reflectance estimation. The reliability of the developed camera system and the algorithms is demonstrated in an experiment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-band camera / illuminant distribution / spectral reflectance / color constancy |
| Paper # | PRMU98-127 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 1998/11/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spectral Estimation of Illumination and Object Surface by Means of a Six-Color Camera |
| Sub Title (in English) | |
| Keyword(1) | multi-band camera |
| Keyword(2) | illuminant distribution |
| Keyword(3) | spectral reflectance |
| Keyword(4) | color constancy |
| 1st Author's Name | Etsushi Takahashi |
| 1st Author's Affiliation | Division of Information and Computer Sciences Graduate School of Engineering Osaka Electro-Communication University() |
| 2nd Author's Name | Shoji Tominaga |
| 2nd Author's Affiliation | Division of Information and Computer Sciences Graduate School of Engineering Osaka Electro-Communication University |
| Date | 1998/11/13 |
| Paper # | PRMU98-127 |
| Volume (vol) | vol.98 |
| Number (no) | 395 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |