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1 (Regular Paper) 19 4, (JBE Vol. 19, No. 4, July 2014) ISSN (Online) ISSN (Print) 3-D a), a) Asymmetrical Role of Left and Right Eyes in 3-D Contents Production Jae-A Lim a) and Jong-Ho Nam a) 3-D D, 3-D. 3-D,. 3-D,. Abstract In order to make 3-D display technique a better tool to provide viewers with realistic stereoscopic experience, various researches have been done in the many relevant fields. This psychophysical study was designed to investigate whether there was any difference in the perceptual processing between a dominant and non-dominant eye when a 3-D cue was provided exclusively to only one eye. We measured the reaction time for detecting a depth change by providing the viewer s each eyes with differential 3-D stimuli, which have systematical patterns. We obtained that there was a consistent 3-D perceptual performance when the 3-D cue was provided to the viewers left eye regardless of their eye dominance. The result suggests that it might be a better technique to arrange the camera for left eye to carry 3-D cues to get the viewer s consistent 3-D perception. Keyword : Binocular asymmetry, Stereopsis, Dominant eye, 3-D perception a) (Dept. of Psychology, The Catholic University of Korea) Corresponding Author : (Jong-Ho Nam) texton@catholic.ac.kr Tel: [ , 3D ] Manuscript received April 14, 2014 Revised June 16, 2014 Accepted July 14, 2014

2 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production)..,,.,..,,., Thomas Young Hermann von Helmholtz. Hering Jameson Hurvich, -, -. 3-D,,. 3-D (stereopsis) [1]. (binocular disparity). 65mm,.,., (fusion). 3-D, 2-D 3-D., 2-D 3-D [2]. 3-D.. Stelmach Tam(1998) (view).,. (mismatch) (uncorrelated).,. Stelmach Tam (1998).. [3-6]. (dominant eye)..,

3 ..,,,, (handedness) (footedness).,, [7]..,., (right-eye dominant). (left-eye dominant)., [7]. Porac Coren(1976) (sighting-dominance). 65%, 32%. 3%. Porac Coren(1976) 97%, [7].,.,, Fig 1. The location of the objects and their corresponding images projected onto the retina of the left and right eyes.,.,. 3..,.,.. 3-D.

4 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production) 3-D, 3-D.,, 3-D, ,.., (self-reported). (righteye dominant).,. [8]. 16 ( 4, 12, 21~25 ) 1.,.. 2. ( : HP Pro 3000MT, Graphics card: NVIDIA GeForce 9500GT), Python Psychopy(ver. 1.71) [9-10]. 3-D 24 ( : SyncMaster SA350, 60Hz, 1920x1080). 75cm,. 3-D Red-Cyan (anaglyph), (crosstalk). 0, +8, -8 pixel.,,, Red-Cyan. 2. (1920 x 1080 ) Fig 2. An example of stimuli arrangements (display size 1920 x 1080), ( ) 4cm ( 2). 4cm 75cm (visual angle) 3.05, 6.08.

3. Fig 3. Stimuli arrangements with regard to disparity information of central cylinder shaped fixation 4. Fig 4. Stimuli arrangements with regard to disparity information of sphere shaped stimuli 1.

5 3. Fig 3. Stimuli arrangements with regard to disparity information of central cylinder shaped fixation 4. Fig 4. Stimuli arrangements with regard to disparity information of sphere shaped stimuli 1.4cm, 2cm, cm, 1.3. ±8 pixels 8 pixels 3.05, pixel 2.52, (none), (zero disparity), (crossed disparity), (uncrossed disparity)- ( 3).,. (F: fixation), ( 4). 4 U, C. 3..,... Red-Cyan anaglyph 75cm., (S, D, K, L). 0.5, 10,, ,

6 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production). 5, 16 8 (40 ). (4) (2) (2), 16.,. [11]. 4..,,,,.. ( vs. vs. vs. ). 3-D ( vs. ), ( vs. vs. vs. ). ( vs. ), ( vs. ).,,.,.... ( 5)..,..,, 5.,, ( : msec) Fig 5. Reaction time of cue-receiving eyes, visual fields, target positions(unit: msec)

7 6. ( : msec) Fig 6. 2-way interaction of eye target position(unit: msec) ( 6).,., ( 7).,. 7. ( : msec) Fig 7. 2-way interaction of motion in depth target position(unit: msec) 8. ( : msec) Fig 8. 3-way interaction of focus_type eye target_position(unit: msec)

8 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production). ( 8).,,,.,..,. ( 9)..,.,.,. 3-D.. 2 1, (left-eye dominant). 16 ( 4, 12, 21~25 ) 2. ( : ). 9. ( : msec) Fig 9. 4-way interaction of eye motion in depth visual field target position(unit: msec)

15 14, 1..,, ( ).,. 2. 1. 3. 1. 1, 1. 1 2,. 1.. 1 ( 10).. 4. 1 (4), (2), (4), (2), (2).,,. 1., 2 11. ( : msec) Fig 11.

9 15 14, 1..,, ( )., , , ( 10) (4), (2), (4), (2), (2).,,. 1., ( : msec) Fig way interaction of eye target position (unit: msec) 10.,, ( : msec) Fig 10. Reaction time of cue-receiving eye, types of motion in depth, target positions(unit: msec)

10 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production),. ( 11).,.,,.,, ( 12).,,. 12. ( : msec) Fig way interaction of focus type eye motion in depth(unit: msec) 13. ( : msec) Fig way interaction of eye motion in depth visual field(unit: msec)

11 , ( 13). 1, , 2 3-D. 1,,,. 1,. 1, 2., 1 ( 14) D., 1, 2.,. 3-D.,. 3-D 14. ( : msec) Fig way interaction of eye motion in depth visual field target position(unit: msec)

1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production). 1,. 3-D.. 2. 3-D. 3-D. 3-D. 3-D.. 3-D 2-D.,., 3-D 3. (References) [1] E.

12 1 : 3-D (Jae-A Lim et al. : Asymmetrical Role of Left and Right Eyes in 3-D Contents Production). 1,. 3-D D. 3-D. 3-D. 3-D.. 3-D 2-D.,., 3-D 3. (References) [1] E. Bruce Goldstein; Translated by Jeong-Oh Kim et al., Sensation and perception, Cengage Learning Korea, Seoul, pp , 2011 [2] T. Shibata, J. Kim, D. M. Hoffman, & M. S. Banks, The zone of comfort: Predicting visual discomfort with stereo displays, Journal of Vision, 11, 8, pp.1-29, Jul, 2011 [3] L.B. Stelmach, W.J. Tam, Stereoscopic image coding: Effect of disparate image-quality in left- and right-eye views, Signal Processing: Image Communication, 14, 1-2, pp , Nov, 1998 [4] T. Mitsuhashi, Subjective image position in stereoscopic TV systems- Considerations on comfortable stereoscopic images, Proc. SPIE, 2179, 5, pp , May, 1994 [5] S. Pastoor, 3D-television: a survey of recent research results on subjective requirements, Signal Processing: Image Communication, 4, 1, pp.21-32, Nov, 1991 [6] S. Yano, Y. Yuyama, Stereoscopic HDTV: Experimental system and psychological effects, SMPTE Journal, 100, 1, pp.14-18, Jan, 1991 [7] C. Porac, S. Coren, The Dominant Eye, Psychological Bulletin, 83, 5, pp , Sep, 1976 [8] H. Ono, R. Barbeito, The cyclopean eye vs. the sighting-dominant eye as the center of visual direction, Perception & Psychophysics, 32, 3, pp , May, 1982 [9] JW. Peirce, PsychoPy-Psychophysics software in Python, Journal of Neuroscience Methods, 162, 1-2, pp.8-13, May, 2007 [10] JW. Peirce, Generating stimuli for neuroscience using PsychoPy, Front Neuroinformatics, 2, 10, pp.1-8, Jan, 2009 [11] W. V. d. Noortgate, P. Onghena, Analysing repeated measures data in cognitive research: A comment on regression coefficient analyses, European Journal of Cognitive Psychology, 18, 6, pp , Nov, : / : ~ : - :, 3-D,

- 1985 : - 1987 : - 1997 : Rutgers, the State

13 : : : Rutgers, the State University of New Jersey, ~ : - :, 3-D

09권오설_ok.hwp

09권오설_ok.hwp (JBE Vol. 19, No. 5, September 2014) (Regular Paper) 19 5, 2014 9 (JBE Vol. 19, No. 5, September 2014) http://dx.doi.org/10.5909/jbe.2014.19.5.656 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) a) Reduction