| Paper Abstract and Keywords |
| Presentation |
2015-02-23 16:45
A note on Accurate Estimation of a Light Source and a Spectral Reflectance by Introduction of Superpixel Calculation Method
Yuta Igarashi, Takahiro Ogawa, Miki Haseyama (Hokkaido Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper presents a method for estimating a spectral reflectance including near-infrared components. In the proposed method, we represent a model of pixel values calculation by a digital camera as a matrix operation and estimate a spectral reflectance by applying Non-negative Matrix Factorization. In addition, we calculate superpixels for reduction of noise effect and utilize spectral reflectance database for spectral estimation of light source in order to improve estimation accuracy. The effectiveness of the proposed method is shown through experiments using simulated reflectance and actual images. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Spectral reflectance estimation / near-infrared components / spectrum estimation of a light source / Non-negative Matrix Factorization / superpixel / / / |
| Reference Info. |
ITE Tech. Rep., vol. 39, no. 7, ME2015-26, pp. 247-252, Feb. 2015. |
| Paper # |
ME2015-26 |
| Date of Issue |
2015-02-16 (MMS, CE, HI, ME, AIT) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
HI IEICE-IE AIT IEICE-ITS ME MMS |
| Conference Date |
2015-02-23 - 2015-02-24 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Hokudai |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
image processing etc |
| Paper Information |
| Registration To |
ME |
| Conference Code |
2015-02-HI-IE-AIT-ITS-ME-MMS-CE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A note on Accurate Estimation of a Light Source and a Spectral Reflectance by Introduction of Superpixel Calculation Method |
| Sub Title (in English) |
|
| Keyword(1) |
Spectral reflectance estimation |
| Keyword(2) |
near-infrared components |
| Keyword(3) |
spectrum estimation of a light source |
| Keyword(4) |
Non-negative Matrix Factorization |
| Keyword(5) |
superpixel |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Yuta Igarashi |
| 1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name |
Takahiro Ogawa |
| 2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 3rd Author's Name |
Miki Haseyama |
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Hokkaido University (Hokkaido Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2015-02-23 16:45:00 |
| Presentation Time |
15 minutes |
| Registration for |
ME |
| Paper # |
MMS2015-28, CE2015-28, HI2015-26, ME2015-26, AIT2015-26 |
| Volume (vol) |
vol.39 |
| Number (no) |
no.7 |
| Page |
pp.247-252 |
| #Pages |
6 |
| Date of Issue |
2015-02-16 (MMS, CE, HI, ME, AIT) |