Ntt Docomo, Inc.

Masashi Tsuboi

Tsutomu Horikoshi

Shinji Kimura

Masaaki Fukumoto

Toshiaki Sugimura

Atsushi Takeshita

Mikiko Nakanishi

Takayuki Tamura

Yasuhiro Takagi

Yasuhiro c/o National University Corp Tokyo Takagi

An interocular luminance analyzing unit analyzes luminance perceived between eyes of an observer based on a luminance distribution image, thereby generating a stereoscopy determination image, a stereoscopy determining unit determines a stereoscopy possible region based on this stereoscopy determination image. This is applicable irrespective of the kind of 3D displays including the two-view type, the multi-view type, and the integral type. Therefore, with the apparatus for evaluating optical properties of a 3D display and the method for evaluating optical properties of a 3D display, the evaluation of optical properties can be performed independently of the kind of 3D displays.

Apparatus for evaluating optical properties of three-dimensional display, and method for evaluating optical properties of three-dimensional display

A display device includes: a display unit that displays an image on a display surface; a detection unit that detects, relative to the display surface, a position of an operation element including a magnetic member; and an external force application unit that applies an external force to the operation element via the magnetic member, by generating a magnetic field in a space faced by the display surface, according to the position of the operation element detected by the detection unit and content of the image displayed by the display unit.

Display device, image display system, and image display method

A three-dimensional image display device is provided which allows a reduction in redundant calculation and high-speed obtainment of an optimum control image to be recorded on an optical wavefront control unit This invention relates to a three-dimensional image display device for displaying a three-dimensional image by irradiating illuminating light at an optical wavefront control unit which records a control image. The three-dimensional image display device of this invention includes a control image optimizing unit which calculates three-dimensional images corresponding to a group of control images based on constraints inherent to the optical wavefront control unit, selects a control image corresponding to a three-dimensional image satisfying a predetermined condition from the group of control images and records the selected control image on the optical wavefront control device.

3-dimensional image display device and 3-dimensional image display method

An optical wavefront control pattern generating apparatus () relating to the present invention includes: a target image detector unit () configured to detect spatial information of the object (B) as a target image; a reconstructed image detector unit () configured to detect the reconstructed image displayed on the reconstructed image display unit (); and an optimizer unit () configured to evaluate, on the basis of the target image detected by the target image detector unit (), the reconstructed image detected by the reconstructed image detector unit (), and to apply a modification process to the optical wavefront control pattern in a way that a result of the evaluation satisfies a predetermined condition, so as to generate the optimum optical wavefront control pattern.

Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method

An optical wavefront control pattern generating apparatus includes: a reconstructed image detector unit configured to detect a reconstructed image displayed on the reconstructed image display; and an optimizer unit configured to evaluate the reconstructed image detected by the reconstructed image detector unit, and to generate the optimum optical wavefront control pattern by applying a modification process to the optical wavefront control pattern in order for a result of the evaluation to satisfy a predetermined condition.

An image display apparatus includes: a light modulation device having an electro-optic effect in which a refractive index changes according to electric field intensity; a plurality of control points provided on a surface of the light modulation device; and an electric field control section configured to control voltage values to be applied to the plurality of control points, and to form electric field displacement surfaces having a predetermined image pattern in the light modulation device.

Image display apparatus, three-dimensional image display apparatus, and three-dimensional image display system

It is an object of the present invention to display unnaturalness-free images without showing an observer repetitive images in accordance with the observer's viewpoint. A light beam control elementlimits a viewing area of images composed of light emitted from a light source array. Here, a terminal position detection sensoror an observer position detection sensordetects a relative positional relationship between the observer's eye observing the image formed by the light emitted from the light source array, and the light source arrayand the light beam control element. Based on the positional relationship detected by these sensors, a display image control devicecontrols the light source arrayso as to change display contents of the light forming the image with the viewing area limited by the light beam control element

Image display device and method having image control unit preventing light source unit from outputting an image when observer is outside of predefined normal viewing area

A three-dimensional hologram image display apparatus displays a three-dimensional hologram image by use of computed interference fringe patterns. The three-dimensional hologram image display apparatus includes a light modulation device which has an electro-optical effect in which a refractive index is varied in accordance with an applied electric field intensity; and an electric field controller configured to record computed interference fringe patterns in the light modulation device by varying an electric field intensity applied to the light modulation device in accordance with the computed interference fringe patterns.

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Yokosuka, Japan

Masashi Tsuboi