Integral photography suitable for small-lot production using mutually perpendicular lenticular sheets and fractional view

Yanaka, Kazuhisa

doi:10.1117/12.704393

Cited by 11 publications

(15 citation statements)

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“…We solved this problem by adopting the extended fractional view (EFV) method [Yanaka 2007;Yanaka 2008], which was proposed as an extension of Ishii's fractional view method to IP. The EFV method facilitates IP production through the use of common laptop PCs and a relatively inexpensive ready-made fly's eye lens.…”

Section: Integral Photographymentioning

confidence: 99%

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Courses on 3D image display for students who aim to become information media engineers and creators

Yanaka

Yamanouchi

2015

SIGGRAPH Asia 2015 Symposium on Education

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Section: Integral Photographymentioning

confidence: 99%

“…The EFV method facilitates IP production through the use of common laptop PCs and a relatively inexpensive ready-made fly's eye lens. We adopted the orthogonal lenticular method [Yanaka 2007], in which mutually perpendicular lenticular sheets are used in place of a fly's eye lens in order to simplify the image synthesis for IP.…”

Section: Integral Photographymentioning

confidence: 99%

Courses on 3D image display for students who aim to become information media engineers and creators

Yanaka

Yamanouchi

2015

SIGGRAPH Asia 2015 Symposium on Education

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“…For live action [1], a real camera is used that probably has an embedded CCD or a C-MOS device. For CG [2][3][4][5][6], the camera is virtual and it only exists in the CG application software. When the elemental images are displayed on a flat-panel display device such as an LCD, superb stereoscopic vision can be experienced by observing the image through a fly's eye lens sheet.…”

Section: Introductionmentioning

confidence: 99%

Input system for moving integral imaging using full HD camcoder and fly's eye lens

Yanaka

Motegi

2009

2009 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video

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Integral imaging is one of the best methods of 3D display because not only horizontal but also vertical parallax is obtained without having to wear special glasses. It is possible to create content for integral imaging with either CG or live action, and the latter is advantageous in that time-consuming modeling is not necessary as long as real objects are available. Moreover, if the displayed 3D images are moving, a more realistic impression of sensation is obtained. However, considerably large and expensive machines have been necessary to shoot moving integral images up until now. In order to cope with this issue, we developed a simple system of input for moving integral imaging in which a household full-HD digital camcorder and a fly's eye lens are combined. The video data recorded on the flash memory is then moved to a PC and converted into a form that is appropriate for 3D display with our original software. The extended fractional view method that we had previously developed was used for the 3D display. By using it, a wide range of LCDs, normal PCs and several fly's eye lenses available on the market can be combined quite freely, because the ratio between the lens pitch and dot pitch is no longer restricted to integer numbers. Our experiments revealed that the proposed system of input could capture moving 3D images of sufficient quality.

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“…In this work, we solved this problem by replacing a fly's eye lens with two mutually perpendicular lenticular lenses, as shown in Fig. 1 [4] based on the fact that two orthogonally stacked lenticular lenses work as if they were a single fly's eye lens.� Unlike fly's eye lenses, large off-the-shelf lenticular lenses are available in the market because of their applications in large 3D signboards, among others.…”

Section: Orthogonal Lenticular Systemmentioning

confidence: 99%

“…This idea is basic for the fractional view method [2][3] proposed by Ishii. Yanaka [4][5] extended Ishii's method so that it can be applied to the IP, in which a disparity exists in both vertical and horizontal directions. This method is called the extended fractional view (EFV) method, which has also been adopted in the system described in this paper.…”

Section: Fractional View Systemmentioning

confidence: 99%

Extended Fractional View Integral Photography Using Slanted Orthogonal Lenticular Lenses

Yanaka

Nomura²,

Yamanouchi

2016

World Congress on Electrical Engineering and Computer Systems and Science

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-Integral photography (IP) is one of the best 3D image display systems because both horizontal and vertical parallaxes can be obtained without a need to wear stereo glasses. IP hardware can most easily be produced by placing a fly's eye lens on a high-definition flat panel display, such as a liquid crystal display (LCD). The price of high-definition LCDs is falling given the progress of its production technology. By contrast, the initial cost of producing a fly's eye lens remains very high because a very expensive metal mold has to be produced in most cases. This problem has been solved by introducing the extended fractional view method, which enables the combination of any ready-made LCD with any ready-made fly's eye lens. However, other problems persist, i.e., the limited types of ready-made fly's eye lens on the market and the lack of large fly's eye lenses. Without such lenses, the 3D display screen size cannot be enlarged. In this work, we solved this problem by replacing a fly's eye lens with two mutually perpendicular lenticular lenses based on the fact that two orthogonally stacked lenticular lenses work as if they were a single fly's eye lens. Unlike fly's eye lenses, large off-theshelf lenticular lenses are available in the market because of their applications in large 3D signboards, among others. Another issue to be addresses is the suppression of very obstructive moiré pattern caused by the interference between the LCD of pixels and small convex lenses. This problem was solved by slightly tilting the orthogonal fly's eye lenses against the LCD. In our experiment, a 3D scene data created with The Persistence of Vision Raytracer (POV-Ray) was rendered from 16 × 16 different viewpoints so that 256 still images were obtained. Our original software, which was developed in C# language, synthesized an IP image from the 256 images. When the image was displayed on a 4K 28-inch LCD and observed through the orthogonal lenticular lenses, a 3D image with both horizontal and vertical parallaxes was observed.

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Integral photography suitable for small-lot production using mutually perpendicular lenticular sheets and fractional view

Cited by 11 publications

References 0 publications

Courses on 3D image display for students who aim to become information media engineers and creators

Courses on 3D image display for students who aim to become information media engineers and creators

Input system for moving integral imaging using full HD camcoder and fly's eye lens

Extended Fractional View Integral Photography Using Slanted Orthogonal Lenticular Lenses

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