| Paper Abstract and Keywords |
| Presentation |
2012-12-02 14:25
Dynamic property of binocular disparity channels for very large depth
-- Examination of spatial frequency (or size) tuning using DoG targets --
Masayuki Sato (Univ. of Kitakyushu), Shoji Sunaga (Kyushu Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
It is well-known that an excessive disparity causes diplopia and unclear depth impression. However, we recently found that target motion facilitates stereopsis for very large depth. To examine the spatiotemporal characteristics of the responsible mechanism we compared contrast sensitivities between a static and a dynamic condition using one-dimensional DoG targets. The space constant σ of positive Gaussian was ranged from 0.11 to 2.3 deg, corresponding to 1.6-0.08 c/deg peak special frequency. The results show that sensitivity dropped substantialy for large disparity range in the static condition while high sensitivity remained until much larger disparity range in the dynamic condition and that the highest sensitivity was obtained for the target with the space constant of 0.38-1.1 deg, corresponding to 0.48-0.16 c/deg. It appears that a dynamic mechanism tuned to that spatial frequency range or size mediates stereopsis for large depth. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Binocular disparity / Depth perception / Spatial frequency / Size / Dynamic property / / / |
| Reference Info. |
ITE Tech. Rep., vol. 36, no. 52, HI2012-81, pp. 13-15, Dec. 2012. |
| Paper # |
HI2012-81 |
| Date of Issue |
2012-11-25 (HI) |
| ISSN |
Print edition: ISSN 1342-6893 |
| Download PDF |
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| Conference Information |
| Committee |
HI |
| Conference Date |
2012-12-02 - 2012-12-02 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Okinawa Industry Support Center |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Human information, etc. |
| Paper Information |
| Registration To |
HI |
| Conference Code |
2012-12-HI |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Dynamic property of binocular disparity channels for very large depth |
| Sub Title (in English) |
Examination of spatial frequency (or size) tuning using DoG targets |
| Keyword(1) |
Binocular disparity |
| Keyword(2) |
Depth perception |
| Keyword(3) |
Spatial frequency |
| Keyword(4) |
Size |
| Keyword(5) |
Dynamic property |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Masayuki Sato |
| 1st Author's Affiliation |
The University of Kitakyushu (Univ. of Kitakyushu) |
| 2nd Author's Name |
Shoji Sunaga |
| 2nd Author's Affiliation |
Kyushu University (Kyushu Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2012-12-02 14:25:00 |
| Presentation Time |
30 minutes |
| Registration for |
HI |
| Paper # |
HI2012-81 |
| Volume (vol) |
vol.36 |
| Number (no) |
no.52 |
| Page |
pp.13-15 |
| #Pages |
3 |
| Date of Issue |
2012-11-25 (HI) |