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Paper Abstract and Keywords
Presentation 2019-10-31 10:10
Experimental and computational study of visual perception for moving objects during self-motion.
Yuki Narita, Shunji Satoh (UEC) HIP2019-56
Abstract (in Japanese) (See Japanese page) 
(in English) Retinal motion or optical flow of an object (target) in the outer world is not generally identical to the motion of the object itself because the retinal motion is the sum of observer's self-motion and the target motion. Rushton {it et al.} (Current Biol., 2005) examined the properties of perceptual motion of targets by psychophysical experiments, and proposed the "flow-parsing hypothesis," which conjectured that human would decompose complex retinal motion into the optical flow by observer's self-motion and the target's motion. In those experiments, however, observable peripheral visual information was limited in a small angle of visual field,
and motion disparity by head movement of observers was eliminated.

In this study, we examine whether the flow-parsing hypothesis is applicable or not to various conditions of visual inputs by using Oculus Go (a stand-alone Head-mounted display) as a primary device for psychophysical experiments. Oculus Go provides virtual reality environment of $pm 50^{circ}$ visual angles approximately, and it does not eliminate motion disparity by observers' head rotation. We show that the flow-parsing hypothesis is partially acceptable in a limited visual condition, but it should be rejected in some conditions.
Keyword (in Japanese) (See Japanese page) 
(in English) self-motion / optical flow / motion-perception / Virtual-Reality / flow-parsing hypothesis / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 254, HIP2019-56, pp. 41-45, Oct. 2019.
Paper # HIP2019-56 
Date of Issue 2019-10-23 (HIP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF HIP2019-56

Conference Information
Committee HIP  
Conference Date 2019-10-30 - 2019-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Terrsa 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Eye Movement (including Accommodation and Pupil), Spatial Perception (Depth Perception, Motion Perception, etc.), etc. 
Paper Information
Registration To HIP 
Conference Code 2019-10-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental and computational study of visual perception for moving objects during self-motion. 
Sub Title (in English)  
Keyword(1) self-motion  
Keyword(2) optical flow  
Keyword(3) motion-perception  
Keyword(4) Virtual-Reality  
Keyword(5) flow-parsing hypothesis  
1st Author's Name Yuki Narita  
1st Author's Affiliation university of electro-communications (UEC)
2nd Author's Name Shunji Satoh  
2nd Author's Affiliation university of electro-communications (UEC)
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Speaker Author-1 
Date Time 2019-10-31 10:10:00 
Presentation Time 25 minutes 
Registration for HIP 
Paper # HIP2019-56 
Volume (vol) vol.119 
Number (no) no.254 
Page pp.41-45 
Date of Issue 2019-10-23 (HIP) 

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