3-D image Crosstalk Reduction by Controlling the Width of the Electrode in a Liquid Lenticular Lens

Shin, Dooseub; Kim, Junoh; Kim, Cheoljoong; Lee, Jun‐Sik; Koo, Gyo Hyun; Sim, Jee Hoon; Won, Yong Hyub

doi:10.1109/jphot.2018.2858220

Cited by 2 publications

(1 citation statement)

References 17 publications

(13 reference statements)

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“…The conventional autostereoscopic display consists of either a lenticular lens array (26) or a barrier array (27) to deliver different images to each eye. These two methods have two common drawbacks: reduced resolution and a large amount of crosstalk (28,29). The display resolution is directly related to visual acuity.…”

Section: Discussionmentioning

confidence: 99%

Rapid, accurate, multifunctional and self-assisted vision assessment and screening with interactive desktop autostereoscopy

Li¹,

Zhong²,

Wang³

et al. 2021

Ann Transl Med

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Background: This study aimed to develop an interactive vision screening tool based on desktop autostereoscopy and evaluate its feasibility for testing visual acuity, colour vision, stereo vision and binocular balance clinically.Methods: An interactive desktop autostereoscopy vision test was developed making it remarkably convenient for individuals to undergo multiple visual function assessments in a single test. With this rapid screening process, an individual's visual acuity, colour vision, stereo vision and binocular balance can be assessed within several minutes. A total of 155 healthy subjects were enrolled to compare the clinical repeatability, accuracy, inter-visit variability, likeability and efficiency between the autostereoscopy and traditional method. Results: In the repeatability test, the visual acuity measured with autostereoscopy was 0.045±0.018 and 0.035±0.018 (P=0.702) for the first and second tests, respectively. The mean logarithm of the Minimum Angle of Resolution (logMAR) visual acuities measured with the Early Treatment Diabetic Retinopathy Study (EDTRS) chart and autostereoscopy test were 0.04±0.02 and 0.05±0.02, respectively, which were not significantly different (P=0.849). The correlation between these two kinds of tests was statistically significant (Spearman correlation coefficient =0.829, P<0.001). The results for colour vision, stereo vision, and binocular vision are presented, and the effectiveness of the autostereoscopic method is supported with qualitative data comparing its results with those of the traditional methods. In the likeability test, the EDTRS chart and autostereoscopy test had scores of 2.21±0.53 and 3.04±0.07, while the traditional and autostereoscopy tests for colour vision, stereo vision, and binocular vision had scores of 2.02±0.59 and 3.36±0.93, respectively (P<0.001). Regarding visual fatigue, the mean scores were 0.69±0.04 and 0.42±0.04 (P<0.001) with the EDTRS chart and autostereoscopy test, respectively. Regarding work efficiency, the average testing times per person was 59.65±0.66 and 48.92±0.86 s (P<0.001) with the EDTRS chart and autostereoscopy test, respectively. Conclusions:The autostereoscopy test was conclusively shown to be valid, efficient and repeatable for the measurement of visual acuity, colour vision, stereo vision, and binocular vision, and the process was subjectively well-liked and comfortable.

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Section: Discussionmentioning

confidence: 99%

Rapid, accurate, multifunctional and self-assisted vision assessment and screening with interactive desktop autostereoscopy

Li¹,

Zhong²,

Wang³

et al. 2021

Ann Transl Med

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Depth plane adaptive integral imaging system using a vari-focal liquid lens array for realizing augmented reality

et al. 2020

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Augmented reality (AR) is an interactive experience of a real-world environment where the objects that reside in the real world are enhanced by computer-generated perceptual information. Despite its attractive features, AR has not become popular because of the visual fatigue that many people face when they experience it. Many methods have been introduced to solve this visual fatigue problem and one of these methods is an integral imaging system that provides images almost continuous viewpoints and full parallax. However, the integral imaging system, which uses a lens array with a fixed focal length, has limited depth of focus (DOF) range. As a result, images that are outside of the DOF range become distorted. In this paper, a vari-focal liquid lens array was fabricated and the optical characteristics of the lens array were evaluated. Using the vari-focal liquid lens array, the DOF range was extended and high-resolution images are realized without restriction of depth range in an AR system.

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3-D image Crosstalk Reduction by Controlling the Width of the Electrode in a Liquid Lenticular Lens

Cited by 2 publications

References 17 publications

Rapid, accurate, multifunctional and self-assisted vision assessment and screening with interactive desktop autostereoscopy

Rapid, accurate, multifunctional and self-assisted vision assessment and screening with interactive desktop autostereoscopy

Depth plane adaptive integral imaging system using a vari-focal liquid lens array for realizing augmented reality

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