Abstract: According to one embodiment, a display device includes a display, an optical unit, and a reflector. The display includes a first display region emitting a first bundle of rays and a second display region emitting a second bundle of rays. The optical unit includes first and second emission regions transmitting the first and the second bundle of rays. The reflector includes a first reflection region reflecting the first bundle of rays, and a second reflection region reflecting the second bundle of rays. The optical unit forms a first focal point of the first bundle of rays between the optical unit and the reflector, and forms a second focal point of the second bundle of rays between the optical unit and the reflector. A distance between the first emission region and the first reflection region is shorter than a distance between the second emission region and the second reflection region.

Abstract: An image processing device includes a background luminance input unit, an image processing unit and a luminance setting unit. The background luminance input unit stores background luminance information regarding background luminance. The image processing unit generates display image data and contrast conversion information. The display image data is provided by modulating a contrast of a correction image data so that pixel values included in the correction image data are in an acceptable range. The correction image data is provided by correcting blurring in an input image data to be input to the image processing unit based on the background luminance information. The contrast conversion information is information used for modulating the contrast. The luminance setting unit generates a luminance setting information to set a luminance of the projection unit based on the modulation information.

Abstract: According to an embodiment, an image processing device includes a receiver, a determiner, and a generator. The receiver is configured to receive a three-dimensional position in a coordinate system of three-dimensional data including an object. The determiner is configured to determine placement of a three-dimensional pointer having a first 3D shape and a second 3D shape positioned around the first 3D shape so that a position of the first 3D shape corresponds to the received three-dimensional position. The generator is configured to generate a stereoscopic image representing the three-dimensional pointer and the object.

Abstract: An example optical device includes a first optical element and a second optical element. The first optical element has first and second surfaces. A first light emitted by a display is incident on the first surface. The first optical element includes transmissive portions and non-transmissive portions. Each of the transmissive portions extends in a first direction parallel to the first surface. The non-transmissive portions are respectively disposed in regions between the transmissive portions. A light transmittance of the non-transmissive portions is lower than that of the transmissive portions. A second light emitted from the second surface is incident on the second optical element, which emits a third light by condensing the second light. An optical axis of the third light is tilted with respect to an optical axis of the second light in a plane parallel to the first direction.

Abstract: According to an embodiment, an image display system includes a first generator and a second generator. The first generator generates a first image which includes first text data representing at least a portion of text data and which is displayed by a first display device of stationary type. The second generator generates a second image which includes second text data representing at least a portion of the first text data and which is displayed by a second display device that is worn by a first user.

Abstract: According to one embodiment, a display device includes a position controller, a projection unit, and a reflector. The projection unit emits light including image information. The projection unit is held by a holder. The position controller is interposed between the holder and the projection unit. The reflector reflects at least a portion of the light emitted from the projection unit. The reflector is held by the holder. A position of the reflector with respect to the holder is fixed. A relative arrangement of the projection unit and the reflector is changeable by the position controller.

Abstract: An image processing system according to an embodiment includes a stereoscopic display device, a transform unit, an image generating unit, and a display control unit. The transform unit reduces or enlarges volume data which is three-dimensional (3D) image data such that among scales of a stereoscopic image assumed to be displayed on the stereoscopic display device using a parallax image group obtained from the volume data, a scale in a depth direction on a display surface of the stereoscopic display device is substantially the same as a scale in another direction which is a direction other than the depth direction. The image generating unit generates a parallax image group by performing a rendering process on transformed volume data. The display control unit causes the parallax image group to be displayed on the stereoscopic display device.

Abstract: An image processing device includes a background luminance input unit, an image processing unit and a luminance setting unit. The background luminance input unit stores background luminance information regarding background luminance. The image processing unit generates display image data and contrast conversion information. The display image data is provided by modulating a contrast of a correction image data so that pixel values included in the correction image data are in an acceptable range. The correction image data is provided by correcting blurring in an input image data to be input to the image processing unit based on the background luminance information. The contrast conversion information is information used for modulating the contrast. The luminance setting unit generates a luminance setting information to set a luminance of the projection unit based on the modulation information.

Abstract: According to one embodiment, a display device to be mounted on a head of a user, includes a display, a reflector, and a processor. The display is configured to emit image light including information of an image. The reflector is configured to reflect at least a part of the image light toward an eye of the user. The reflector is semi-transmissive. The processor is configured to control the display so as to reduce visibility of at least a part of the image when the processor receives a first signal while the display is emitting the image light. The first signal represents an action of the user in use.

Abstract: According to one embodiment, an image processing system includes a stereoscopic display device and an image processing apparatus. The stereoscopic display device is configured to enable a stereoscopic image constituted by using a predetermined parallax number of parallax images to be stereoscopically viewed. The image processing apparatus comprises a rendering processor configured to apply rendering processing to volume data serving as three-dimensional medical image data, a rendering processing controller configured to control the rendering processor so as to generate from the volume data a parallax image group composed of the predetermined parallax number or more of parallax images, and a storage controller configured to store in a memory the parallax image group generated by the rendering processor.

Abstract: According to one embodiment, a display device includes a display, an optical unit, and a reflector. The display includes a first display region emitting a first bundle of rays and a second display region emitting a second bundle of rays. The optical unit includes first and second emission regions transmitting the first and the second bundle of rays. The reflector includes a first reflection region reflecting the first bundle of rays, and a second reflection region reflecting the second bundle of rays. The optical unit forms a first focal point of the first bundle of rays between the optical unit and the reflector, and forms a second focal point of the second bundle of rays between the optical unit and the reflector. A distance between the first emission region and the first reflection region is shorter than a distance between the second emission region and the second reflection region.

Abstract: According to one embodiment, an electronic apparatus in which user can see through at least a transparent part of a first display area when the electronic apparatus is worn on a body of the user is provided. The electronic apparatus includes a camera configured to take an image of surroundings comprising a region which the user cannot see through at least a transparent part of the first display area when the electronic apparatus is worn on a body of the user, and circuitry configured to perform controlling display of the first display area by using the image of surroundings.

Abstract: According to an embodiment, an image processing apparatus includes an acquirer, first and second calculators, and a selector. The acquirer acquires a first image of an object captured in a first imaging direction and a second image of the object captured in a second imaging direction. The first calculator calculates, for each pixel included in the respective first and second images, likelihood of whether the pixel is included in a region of the object on the basis of feature information indicating image feature. The second calculator calculates, on the basis of the likelihood, a degree of similarity between a region of interest in the first image and a candidate region in the second image. The candidate region is a candidate of a corresponding region corresponding to the region of interest. The selector selects the candidate region serving as the corresponding region on the basis of the degree of similarity.

Abstract: According to one embodiment, an optical device includes a first optical element and a second optical element. The first optical element has first and second surfaces. A first light emitted by a display is incident on the first surface. The first optical element includes transmissive portions and non-transmissive portions. Each of the transmissive portions extends in a first direction parallel to the first surface. The non-transmissive portions are respectively disposed in regions between the transmissive portions. A light transmittance of the non-transmissive portions is lower than that of the transmissive portions. A second light emitted from the second surface is incident on the second optical element, which emits a third light by condensing the second light. An optical axis of the third light is tilted with respect to an optical axis of the second light in a plane parallel to the first direction.

Abstract: According to an embodiment, an image processing device generates a three-dimensional image to be displayed on a display unit. The display unit includes a display element unit that has pixels each containing a plurality of sub-pixels arranged thereon and a ray control element unit that controls emission directions of rays emitted from the sub-pixels. The image processing device includes a first acquiring unit configured to acquire three-dimensional data for generating the three-dimensional image; and a generating unit configured to calculate, for each of the sub-pixels, a luminance value of the sub-pixel on the basis of an emission direction of a ray emitted from the sub-pixel through the ray control element unit and the three-dimensional data to generate the three-dimensional image.

Abstract: According to one embodiment, a display device includes a position controller, a projection unit, and a reflector. The projection unit emits light including image information. The projection unit is held by a holder. The position controller is interposed between the holder and the projection unit. The reflector reflects at least a portion of the light emitted from the projection unit. The reflector is held by the holder. A position of the reflector with respect to the holder is fixed. A relative arrangement of the projection unit and the reflector is changeable by the position controller.

Abstract: According to one embodiment, a display device includes a display unit, a reflective/transmissive unit, and an optical unit. The display unit emits image light including image information. The reflective/transmissive unit reflects at least a portion of the image light and transmits at least a portion of background light. The optical unit is provided between the display unit and the reflective/transmissive unit in an optical path of the image light. A refractive power of the optical unit is determined according to a refractive power of the reflective/transmissive unit for the background light passing through the reflective/transmissive unit.

Abstract: According to one embodiment, a display includes a projector, a first optical unit, and a second optical unit. The projector emits a first light including image information. The first optical unit transmits at least a portion of a second light. The second optical unit reflects at least a portion of the first light and transmits at least a portion of the second light. A light reflectance of the first optical unit is lower than a light reflectance of the second optical unit, and a light absorptance of the first optical unit is higher than a light absorptance of the second optical unit.

Abstract: According to one embodiment, a display device includes a light emitter and a reflector. The light emitter emits light including image information. The reflector has a plurality of reflective surfaces arranged in a first direction. The reflective surfaces reflect a portion of the light. A length in a second direction of one of the reflective surfaces is longer than a length in the first direction of the one of the reflective surfaces. The second direction intersects the first direction. A first plane is tilted with respect to a second plane. The first plane includes an incident direction of the light at the reflector and a reflection direction of the light at the reflector. The second plane includes the first direction and the second direction. The second direction is tilted with respect to an intersection line between the first plane and the second plane.

Abstract: A display device includes a first optical part that reflects at least part of incident light and a projection part that projects image light including the image information. The first optical part includes a first base, a reflective layer, a second base, and an intermediate layer. The refractive index of the first base, the refractive index of the second base, and the refractive index the intermediate layer are about the same value.