Investigation of Autostereoscopic Displays Based on Various Display Technologies

Chen, Fuhao; Qiu, Chengfeng; Liu, Zhaojun

doi:10.3390/nano12030429

Cited by 15 publications

(8 citation statements)

References 68 publications

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“…A parallax barrier, which was placed in front of a liquid crystal display, could produce a series of ultrathin vertical grating pattern to divide images into both eyes, then show an autostereoscopic image without the need of wearing dichoptic-viewing glasses. Besides these, the autostereoscopic displays also constructed the light field better than 2D displays and resolved the conflict between accommodation and convergence in traditional 2D displays [23] . In 2019, Zhao and Wu [24] used an autostereoscopic smartphone to measure stereoacuity of 60 healthy adults, and proved that it was a useful tool to evaluate stereopsis qualitatively and quantitatively.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the effects of induced anisometropia on binocularity with glasses-free 3D technique

Yang¹,

Liao²

2023

Int J Ophthalmol

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AIM: To assess the effect of experimentally induced anisometropia on binocularity in normal adults with glasses-free three-dimensional (3D) technique. METHODS: Totally 54 healthy medical students with normal binocularity in the cross-sectional study were enrolled. Anisometropia was induced by placing trail lenses over the right eye, in 0.5 D steps including lenses of -0.5, -1, -1.5, -2, -2.5 D (hyperopic anisometropia) and lenses of +0.5, +1, +1.5, +2, +2.5 D (myopic anisometropia). The glasses-free 3D technique was used to evaluated not only fine stereopsis, but also coarse stereopsis, dynamic stereopsis, foveal suppression, and peripheral suppression in these subjects. One-way analysis of variance was used to compare quantitative data such as fine stereopsis, coarse stereopsis. Pearson’s Chi-square test was performed to compare categorical data such as dynamic stereopsis, foveal suppression and peripheral suppression. RESULTS: The subjects showed a statistically significant decline in fine stereopsis, coarse stereopsis, and dynamic stereopsis with increasing levels of anisometropia (P<0.001). Binocularity was affected when induced anisometropia was more than 1 D (P<0.05). Foveal suppression and peripheral suppression were evident and increased in proportion to anisometropia (P<0.001). CONCLUSION: The relatively low degrees of anisometropia may have a potentially significant effect on high-grade binocular interaction. The mechanisms underlying the defect of binocularity seem to involve not only foveal suppression, but also peripheral suppression.

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Section: Discussionmentioning

confidence: 99%

Assessment of the effects of induced anisometropia on binocularity with glasses-free 3D technique

Yang¹,

Liao²

2023

Int J Ophthalmol

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“…The mainstream autostereoscopy approaches include the following: (1) the image splitting components (ISCs) before a liquid crystal display (LCD) [4][5][6] and (2) the directionally illuminated (DI) design behind an LCD [7][8][9][10]. The ISC technique using a parallax barrier [11][12][13], grating [14][15][16], or lenticular array [17] can be categorized as spatial multiplexing, with which the left and right view images are simultaneously loaded on the selected alternative pixels of the LCD, resulting in a resolution reduction by at least a half compared with a two-dimensional (2D) or planar display. With the ISC autostereoscopy, image information in each viewpoint comes from the corresponding pixels or subpixels behind the lenticular arrays.…”

Section: Introductionmentioning

confidence: 99%

Directionally Illuminated Autostereoscopy with Seamless Viewpoints for Multi-Viewers

Zhang,

Chen,

Wang

et al. 2024

Micromachines

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Autostereoscopy is usually perceived at finite viewpoints that result from the separated pixel array of a display system. With directionally illuminated autostereoscopy, the separation of the illumination channel from the image channel provides extra flexibility in optimizing the performance of autostereoscopy. This work demonstrates that by taking advantage of illumination freedom, seamless viewpoints in the sweet viewing region, where the ghosting does not cause significant discomfort, are realized. This realization is based on illuminating the screen with a polyline array of light emitting diodes (LEDs), and continuous viewpoints are generated through independent variation in the radiance of each individual LED column. This new method is implemented in the directionally illuminated display for both single and multiple viewers, proving its effectiveness as a valuable technique for achieving a high-quality and high-resolution autostereoscopic display with seamless viewpoints.

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“…In the field of digital imaging, the assessment of image quality has always been a core topic. In recent years, with the development and application of naked-eye 3D technology [1,2,3,4], accurately evaluating the quality of 3D stereoscopic images has become an important research direction. Naked-eye 3D technology, which allows three-dimensional imaging to be viewed without any auxiliary equipment, has been widely used in entertainment, medicine, and industrial design, among other fields.…”

Section: Introductionmentioning

confidence: 99%

P‐3.3: Investigation into the Relationship between Depth and Quality of Naked‐Eye 3D Images

Gao,

Hou,

Gong

et al. 2024

Symp Digest of Tech Papers

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In our study, we simulated naked‐eye 3D stereoscopic depth images and examined the clarity of images at different depths in detail. Our findings reveal an important insight: as the image depth increases, crosstalk between images becomes more severe. This is mainly due to the increase in parallax and the characteristics of the visual system in processing depth information. Furthermore, we utilized the modulation transfer function (MTF) for related analysis, and the results show that the MTF of stereoscopic depth decreases as the depth increases. This trend further illustrates the close relationship between increased depth and decreased image quality. Our research findings provide important theoretical basis for understanding and improving the quality of naked‐eye 3D images.

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Investigation of Autostereoscopic Displays Based on Various Display Technologies

Cited by 15 publications

References 68 publications

Assessment of the effects of induced anisometropia on binocularity with glasses-free 3D technique

Assessment of the effects of induced anisometropia on binocularity with glasses-free 3D technique

Directionally Illuminated Autostereoscopy with Seamless Viewpoints for Multi-Viewers

P‐3.3: Investigation into the Relationship between Depth and Quality of Naked‐Eye 3D Images

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