| Presentation | 2009-10-22 A Method for Estimating Optical Properties of Clouds by using a Photograph Yusuke SHINZO, Yoshinori DOBASHI, Tsuyoshi YAMAMOTO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a method for estimating optical properties from a photograph and creating 2D cloud textures. Our method enables the user to change the shading of the generated clouds textures. There are some methods that can extract an image of foreground objects from a photograph and composite it into a different photograph. However, when applying those methods to clouds, unnatural images are often created, especially when the sun directions are different. We address this problem by estimating an attenuation coefficient and an albedo coefficient. Our method allows the user to change the sunlight direction as well as the attenuation ratio and density of clouds. This makes it easy to reflect user's intention in cloud texture. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Photograph / Optical Properties / Extracting Cloud Textures |
| Paper # | PRMU2009-79 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2009/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | A Method for Estimating Optical Properties of Clouds by using a Photograph |
| Sub Title (in English) | |
| Keyword(1) | Photograph |
| Keyword(2) | Optical Properties |
| Keyword(3) | Extracting Cloud Textures |
| 1st Author's Name | Yusuke SHINZO |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Yoshinori DOBASHI |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Tsuyoshi YAMAMOTO |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2009-10-22 |
| Paper # | PRMU2009-79 |
| Volume (vol) | vol.109 |
| Number (no) | 249 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |