Accommodation response for visually equivalent light field 3D display

Date, Muneyuki; Fujii, Hiroshi; Kimata, Hideaki; Kojima, Takehito; Iwata, Kenji; Kimura, Ryota; Sugiura, Akira; Miyao, Masaru

doi:10.1109/ias.2017.8101803

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…When the phase difference of the two waves is /2 , error in phase linearity is less than 5%. Moreover, it decreases as the phase difference decreases [14]. When the disparity is 3-5 arcmins, 5% yields errors of 0.15-0.25 arcmins, which matches the stereopsis discrimination performance of almost all subjects [6].…”

Section: Expression Of Light Fieldsupporting

confidence: 72%

“…Therefore, we have proposed the flat panel 3D display, which has high resolution and no distortion. Its smooth motion parallax and high 3D image quality have been confirmed [14,[18][19][20]; we call it the visually equivalent light field 3D (VELF3D) display. Figure 3 shows the structure of the 3-viewpoint type VELF3D display.…”

Section: Velf3d Displaymentioning

confidence: 97%

“…If images observed at all points on the second plane can be generated from those at sparse points on the second plane, data quantity can be reduced. Figure 1 shows the concept of the visually equivalent light field [11]. We generate image observed at point u from known images observed at points A and B on the second plane.…”

Section: Expression Of Light Fieldmentioning

confidence: 99%

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Depth Range Control in Visually Equivalent Light Field 3D

Date

Shimizu

Kimata

et al. 2021

IEICE Trans. Electron.

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3D video contents depend on the shooting condition, which is camera positioning. Depth range control in the post-processing stage is not easy, but essential as the video from arbitrary camera positions must be generated. If light field information can be obtained, video from any viewpoint can be generated exactly and post-processing is possible. However, a light field has a huge amount of data, and capturing a light field is not easy. To compress data quantity, we proposed the visually equivalent light field (VELF), which uses the characteristics of human vision. Though a number of cameras are needed, VELF can be captured by a camera array. Since camera interpolation is made using linear blending, calculation is so simple that we can construct a ray distribution field of VELF by optical interpolation in the VELF3D display. It produces high image quality due to its high pixel usage efficiency. In this paper, we summarize the relationship between the characteristics of human vision, VELF and VELF3D display. We then propose a method to control the depth range for the observed image on the VELF3D display and discuss the effectiveness and limitations of displaying the processed image on the VELF3D display. Our method can be applied to other 3D displays. Since the calculation is just weighted averaging, it is suitable for real-time applications.

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Section: Expression Of Light Fieldsupporting

confidence: 72%

Section: Velf3d Displaymentioning

confidence: 97%

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Depth Range Control in Visually Equivalent Light Field 3D

Date

Shimizu

Kimata

et al. 2021

IEICE Trans. Electron.

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“…With this technology, light rays to an intermediate viewpoint are interpolated with visual equivalence. The interpolation is a weighted average of rays to discrete viewpoints that is optically created in the display [5].…”

Section: Visually Equivalent Light Field Display Technologymentioning

confidence: 99%

Video Processing/Display Technology for Reconstructing the Playing Field in Sports Viewing Service Using VR/AR

Isogai

Okami

Matsumura

et al. 2018

NTT Technical Review

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Sports viewing services using virtual reality (VR) and augmented reality (AR) technology have been introduced recently due to the development of sensor devices and video production/delivery technology. NTT Media Intelligence Laboratories aims to provide a sports viewing service using VR/AR to display reconstructed playing field videos without user operation. In this article, we present a video processing technology to reconstruct the playing field for VR/AR displays and a three-dimensional display technology for representing a playing field three-dimensionally on a table.

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