| Presentation | 2019-05-31 Study on feature extraction from leaf-scale plant images Kuniaki Uto, Mauro Dalla Mura, Jocelyn Chanussot, Koichi Shinoda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the advent of an unmanned aerial vehicle (UAV) and sensing technologies, it is possible to acquire leaf-scale aerial optical images under various weather conditions. We are working on estimating leaf colors and leaf angles that are related to photosynthetic productivities based on high resolution images. There are a number of issues that should be resolved to estimate leaf colors and leaf angles based on leaf-scale aerial images of plants in field. In this paper, we propose an algorithm that estimates leaf colors and leaf angles based on multiple images of plants. Under the condition in which direct sunlight is dominant and the optical properties of leaves are Lambertian, a set of leaf normals, a set of direction of sunlights and a leaf color are estimated by a tensor decomposition of a 3D data array generated from multiple images of a plant. The proposed algorithm is evaluated by results based on simulated data. We discuss how to proceed with other issues by featuring some experimental results at the moment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Aerial leaf-scale image / leaf color / leaf angle / tensor decomposition |
| Paper # | PRMU2019-7 |
| Date of Issue | 2019-05-23 (PRMU) |
| Conference Information | |
| Committee | PRMU / IPSJ-CVIM |
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| Conference Date | 2019/5/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shinichi Sato(NII) |
| Vice Chair | Yoshihisa Ijiri(Omron) / Toru Tamaki(Hiroshima Univ.) |
| Secretary | Yoshihisa Ijiri(NEC) / Toru Tamaki(Osaka Univ.) |
| Assistant | Go Irie(NTT) / Yoshitaka Ushiku(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Special Interest Group on Computer Vision and Image Media |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on feature extraction from leaf-scale plant images |
| Sub Title (in English) | |
| Keyword(1) | Aerial leaf-scale image |
| Keyword(2) | leaf color |
| Keyword(3) | leaf angle |
| Keyword(4) | tensor decomposition |
| 1st Author's Name | Kuniaki Uto |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Mauro Dalla Mura |
| 2nd Author's Affiliation | Grenoble Institute of Technology(Grenoble INP) |
| 3rd Author's Name | Jocelyn Chanussot |
| 3rd Author's Affiliation | Grenoble Institute of Technology(Grenoble INP) |
| 4th Author's Name | Koichi Shinoda |
| 4th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2019-05-31 |
| Paper # | PRMU2019-7 |
| Volume (vol) | vol.119 |
| Number (no) | PRMU-64 |
| Page | pp.pp.259-264(PRMU), |
| #Pages | 6 |
| Date of Issue | 2019-05-23 (PRMU) |