| Presentation | 2016-09-28 The Effect of Salience and Ensemble Information on Eye Movements in Visual Search Shunsuke Kumakiri, Yoshiyuki Ueda, Jun Saiki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The more salient point of the scene, the more it attracts visual attention (Itti & Koch, 2000). While saliency map is computed from local information, ensemble information is computed from spatially distributed objects. The questions in this study are whether human can use ensemble information for optimal search and when and how salience and ensemble information affect human search process. In the experiment, Gabor patches were placed in the left and right side of the screen with pink-noised background. The task was to count the point of Gabors (the black-white Gabor had 1 point and the colored Gabor had 2 or more points) and judge which side of the screen included just 20 points. In each trial, there was only one colored (the most salient) Gabor, which was located in the side with 20 points (congruent condition), or in the side with less than 20 points (incongruent condition). The results showed that participants’ accuracy was consistently high in the congruent condition, whereas they increased from 57% to 94% as the point difference between sides of the screen increased in the incongruent condition. In the beginning of trials, eye movements in the incongruent condition were captured to the incorrect side, which has less than 20 points but included the colored Gabor. After a few saccades, their eyes moved to the correct side when the point difference was large. These results suggest that at first eye movements depend primarily on saliency, and ensemble information gradually affects them after a few saccades. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | visual search / visual attention / eye movement / visual saliency / ensemble |
| Paper # | HIP2016-56 |
| Date of Issue | 2016-09-20 (HIP) |
| Conference Information | |
| Committee | HIP |
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| Conference Date | 2016/9/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Eye movement and perception, Control and measurement of eye movement, Accommodation and pupil, etc. |
| Chair | Masahiro Ishii(Sapporo City Univ.) |
| Vice Chair | Miyuki Kamachi(Kogakuin Univ.) / Shuichi Sakamoto(Tohoku Univ.) |
| Secretary | Miyuki Kamachi(Tokushima Univ.) / Shuichi Sakamoto(Univ. of Tsukuba) |
| Assistant | Rika Mochizuki(NTT) / Mutsumi Suganuma(Waseda Univ.) / Atsushi Wada(NICT) |
| Paper Information | |
| Registration To | Technical Committee on Human Information Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Effect of Salience and Ensemble Information on Eye Movements in Visual Search |
| Sub Title (in English) | |
| Keyword(1) | visual search |
| Keyword(2) | visual attention |
| Keyword(3) | eye movement |
| Keyword(4) | visual saliency |
| Keyword(5) | ensemble |
| 1st Author's Name | Shunsuke Kumakiri |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Yoshiyuki Ueda |
| 2nd Author's Affiliation | Kokoro Research center(KokoronoMirai) |
| 3rd Author's Name | Jun Saiki |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2016-09-28 |
| Paper # | HIP2016-56 |
| Volume (vol) | vol.116 |
| Number (no) | HIP-229 |
| Page | pp.pp.67-70(HIP), |
| #Pages | 4 |
| Date of Issue | 2016-09-20 (HIP) |