Analysis of angular dependence of 3‐D technology using polarized eyeglasses

Hong, Hyungki; Jang, JunWoo; Lee, DonGyou; Lim, Moojong; Shin, Hyungsoon

doi:10.1889/jsid18.1.8

Cited by 17 publications

(21 citation statements)

References 7 publications

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“…The GRPT can be neglected due to the separation made in same time by polarization and good dark states of the 3D shutters [9] B. Transmissive Mode: Case 2.1Case 2.1 Fig. 8 shows the values of various ghosting ratios in TM for the Case 2.1 only.…”

Section: Ghosting Ratio Resultsmentioning

confidence: 99%

Implementation of Ghosting Effects in 3D Dual-View Projection System

B¹,

Seshagiri²

2015

International Journal of Innovative Research in Electrical, Ele

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Abstract:In the proposed scheme various technical options to implement 3D dual-view systems, from four frames generated by two triggered or non-triggered 3D projectors. Such a technique offers 3D free-viewpoint capabilities for two viewers. We compare two different technical implementations based on transmissive video projection and reflective silver screen, combining two different 3D encoding techniques: polarization and time multiplexing. The main objective is to analyze and mitigate the ghosting effects, as a function of the technical, modal and frame pairing choices with respect, first to the image optical quality and second to prevent visual fatigue. DUAL-VIEW is an intrinsic capability of TVs or video projectors displaying 3D contents. Dual-View TVs basically play two full HD image streams that can be tuned by the viewers wearing compatible glasses. It means that two users watching the same TV can watch different channels in full HD. In other words, the stereo pair is used to separate the streams for two different viewers. Consequently, watching 3D view requires at least four independent frames projection or display. The benefit is that 3D Dual-View enables two viewers to watch simultaneously two different 3D contents, as well as the possibility for these viewers to watch the same 3D content, but with different viewpoints, according to their location with respect to the screen. This provides the advantage of free viewpoint projection, which is not possible with conventional 3D contents.

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Section: Ghosting Ratio Resultsmentioning

confidence: 99%

Implementation of Ghosting Effects in 3D Dual-View Projection System

B¹,

Seshagiri²

2015

International Journal of Innovative Research in Electrical, Ele

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“…Figure illustrates the schematic setup of the experiment. Stereoscopic display based on the technology of the patterned retarders and the polarizing eyeglasses was selected as the sample display . Participant was required to wear the polarized eyeglass to perceive the stereoscopic depth.…”

Section: Methodsmentioning

confidence: 99%

Measurement of minimum angle of resolution (MAR) in the stereoscopic display using the optotype of stereoscopic stimuli

2014

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In stereoscopic images, the crossing point of the viewing directions of the two eyes determines the perceived depth. Assuming that accommodation is affected by the positions of the crossing point, the effect of crossing point on minimum angle of resolution (MAR) was investigated. For 40 participants, MAR was measured by two‐alternative forced choice where Snellen optotype E of up and down directions were used as two kinds of stimuli. As the crossing point of the viewing direction of the left and right eyes moves farther from the sample display, the ability to identify the direction of letter E decreases at the optotype of the same line thickness. The change of MAR shows linear trends with respect to the optical power change that are the reciprocal of the distance from the participant to the crossing points located out of screen and on screen.

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“…A commercial 3D TV based on Patterned Retarder (PR) 3D technology with a diagonal length of 47 in., horizontal width of 1040 mm, resolution of 1920 × 1080 pixels, and a pixel pitch of 0.540 mm was used as the 3D display sample . The performance of the PR 3D technology is reported to have a uniform crosstalk of less than 1% over a horizontal directional range of ±30° . To perceive the 3D images in this 3D sample, users were required to wear polarizing eyeglasses, which are compatible to the chosen 3D sample.…”

Section: Methodsmentioning

confidence: 99%

Experimental determination of the range of binocular disparity for which stereoscopic fusion occurs at a viewing distance of 2.5 m for a stereoscopic TV

Kang

Hong

2013

J Soc Info Display

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-The threshold for binocular disparity for which a participant can observe a clear stereoscopic image on a 3D TV using Patterned Retarder technology and polarizing eyeglasses is determined for a viewing distance of 2.5 m. An optotype, the letter "m" with a line thickness of 1.08 mm in the upward or downward direction, was used as the stereoscopic stimulus. Under the measurement conditions of the increase and decrease of binocular disparity of the stereoscopic stimulus, the binocular disparity thresholds for 40 participants were measured for the horizontal direction. Most of the participants were in their twenties. The thresholds were measured to be slightly larger for the condition of increasing binocular disparity compared with the condition of decreasing binocular disparity. Personal differences were measured to be noticeable.

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Analysis of angular dependence of 3‐D technology using polarized eyeglasses

Cited by 17 publications

References 7 publications

Implementation of Ghosting Effects in 3D Dual-View Projection System

Implementation of Ghosting Effects in 3D Dual-View Projection System

Measurement of minimum angle of resolution (MAR) in the stereoscopic display using the optotype of stereoscopic stimuli

Experimental determination of the range of binocular disparity for which stereoscopic fusion occurs at a viewing distance of 2.5 m for a stereoscopic TV

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