| Presentation | 2015-06-11 Dynamics of Fish Schools Kei Tarayama, Masa-aki Sakagami, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigate time development of the solid torus shape of fish schools by analyzing the movies taken from the bottom of a tank of an aquarium. Using automatic measurement of velocities in fish schools by means of method called optical flow, we review the effectiveness of the analysis based on rotation curve, namely the relation between rotation velocities of fishes and their distances from the center of the torus. Collective motion of fish changes non-stationarily and continuously within a times scale of several seconds. If we average the rotation curves by a dynamical time in torus, universal structure of rotation curve appears. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fish schools / velocity filed / optical flow / averaged torus / fluctuation |
| Paper # | NLP2015-47,CCS2015-9 |
| Date of Issue | 2015-06-04 (NLP, CCS) |
| Conference Information | |
| Committee | NLP / CCS |
|---|---|
| Conference Date | 2015/6/11(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Waseda Univerisity |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kenya Jinno(Nippon Inst. of Tech.) / Hiroo Sekiya(Chiba Univ.) |
| Vice Chair | Naoto Fujisaka(Hiroshima City Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) |
| Secretary | Naoto Fujisaka(Tokyo Univ. of Science) / Yasuhiro Tsubo(Konan Univ.) / Naoki Wakamiya(Kagawa National College of Tech.) |
| Assistant | Hidehiro Nakano(Tokyo City Univ.) / Hiroyuki Asahara(Okayama Univ. of Science) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Nonlinear Problems / Technical Committee on Complex Communication Sciences |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dynamics of Fish Schools |
| Sub Title (in English) | Averaged Torus, fluctuation, correlation and information transfer |
| Keyword(1) | Fish schools |
| Keyword(2) | velocity filed |
| Keyword(3) | optical flow |
| Keyword(4) | averaged torus |
| Keyword(5) | fluctuation |
| 1st Author's Name | Kei Tarayama |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Masa-aki Sakagami |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2015-06-11 |
| Paper # | NLP2015-47,CCS2015-9 |
| Volume (vol) | vol.115 |
| Number (no) | NLP-77,CCS-78 |
| Page | pp.pp.49-53(NLP), pp.49-53(CCS), |
| #Pages | 5 |
| Date of Issue | 2015-06-04 (NLP, CCS) |