US 9,432,657 B2Granted

Naked-eye stereoscopic display apparatus, viewpoint adjustment method, and naked-eye stereoscopic vision-ready video data generation method

AssigneeJVC KENWOOD Corporation

InventorAtsushi Saito

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Abstract

On a display device, a lenticular lens is arranged in a state where a periodic direction thereof is inclined with respect to the horizontal direction. Within a maximum predetermined viewing angle defined by two viewpoint images with the largest parallax, a viewpoint adjustment unit sets a first angular region where there is a high possibility that one or more eyes may be present when an observer observes the display device, and a second angular region where there is a low possibility that one or more eyes may be present. The viewpoint adjustment unit adjusts the viewpoints so that a parallax between adjacent viewpoint images in viewpoint images to be presented in the first angular region is reduced more than a parallax between adjacent viewpoint images in viewpoint images to be presented in the second angular region.

Claims28

Dependent claims

A naked-eye stereoscopic display apparatus comprising:

a display device comprising a plurality of pixels arrayed in a horizontal direction and a vertical direction and a memory store for storing data representing the plurality of pixels, whereby the display device assigns respective pixels of video data composed of a plurality of viewpoint images to the plurality of pixels, thereby displaying the respective pixels of pixel data;
an optical light directing means comprising an optical member that has a plurality of optical elements periodically arrayed therein, arranged on the display device in a state where a periodic direction of the optical elements is inclined with respect to the horizontal direction of pixels in the display device, and configured to divide the plurality of viewpoint images displayed on the display device into a plurality of different viewpoint directions, and to present the divided viewpoint images;
and
a viewpoint adjustment unit comprising a processor, the processor storing viewpoint adjustment data, receiving a parallax level derived from the plurality of viewpoint images, and which, within a maximum predetermined horizontal viewing angle defined by two viewpoint images with the largest parallax, defines a first horizontal angular region, comprising a left region in which there is a high possibility that a viewer's left eye may be present when observing the display device and a right region in which there is a high possibility that a viewer's right eye may be present when observing the display device, and a second horizontal angular region in which there is a low possibility that the viewer's left eye and the viewer's right eye may be present, and configured to reduce the parallax between adjacent viewpoint images displayed in the first horizontal angular region more than the parallax between adjacent images in the second horizontal angular region.

1 more element

A viewpoint adjustment method comprising:

a viewpoint adjustment unit comprising a processor, the processor storing viewpoint adjustment data, using the viewpoint adjustment data to adjust viewpoints so that a parallax between adjacent viewpoint images in a set of viewpoint images to be presented in a first horizontal angular region is adjusted, the first horizontal angular region comprising a left region in which there is a high possibility that a viewer's left eye may be present when observing a naked-eye stereoscopic display apparatus and a right region in which there is a high possibility that a viewer's right eye may be present when observing a naked-eye stereoscopic display apparatus, within a maximum predetermined horizontal viewing angle defined by two viewpoint images with the largest parallax;
and the viewpoint adjustment unit using the viewpoint adjustment data to adjust viewpoints so that a parallax between adjacent viewpoint images in the viewpoint images to be presented in a second horizontal angular region is adjusted, the second horizontal angular region being a region at the center of the left region and the right region of the first horizontal angular region, in which there is a low possibility that the viewer's left eye and the viewer's right eye may be present when observing the naked-eye stereoscopic display apparatus, within the maximum predetermined horizontal viewing angle,
wherein the parallax between adjacent viewpoint images in the first horizontal angular region is reduced more than the parallax between adjacent viewpoint images in the second horizontal angular region by the viewpoint adjustment unit.

A naked-eye stereoscopic vision-ready video data generation method comprising:

using an imaging device or rendering graphics by using a computer to set, within a maximum predetermined viewing angle defined by two viewpoint images with the largest parallax, a first horizontal angular region comprising a left region in which there is a high possibility that an observer's left eye may be present when an observer observes a naked-eye stereoscopic display apparatus and a right region in which there is a high possibility that an observer's right eye may be present when the observer observes a naked-eye stereoscopic display apparatus, and a second horizontal angular region in the center of the left region and the right region where there is a low possibility that the observer's left eye and the observer's right eye may be present, and generating viewpoint images in which viewpoints are adjusted in advance so that a parallax between adjacent viewpoint images in viewpoint images to be presented in the first horizontal angular region is reduced more than a parallax between adjacent viewpoint images in viewpoint images to be presented in the second horizontal angular region;
and
using a formatting device to format the viewpoint images, in which the viewpoints are adjusted in advance, into a predetermined format, and generating naked-eye stereoscopic vision-ready video data.

Dependencies are inferred from the claim text.

Facts

Application: 13/928,451Filed 27 Jun 2013 · continuation
Priority: JP 2011-11892227 May 2011
Published: US 2013/0293691 A17 Nov 2013
Granted: 30 Aug 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G02B 30/29
Involving lenticular arrays: characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying…
H04N 13/305
For viewing without the aid of special glasses, i.e. using autostereoscopic displays: using lenticular lenses, e.g. arrangements of cylindrical lenses
G02B 30/27
Of the autostereoscopic type: involving lenticular arrays
G09G 3/003
Using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide;…