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: A liquid crystal lens device and an image display apparatus are disclosed. According to certain embodiments, the liquid crystal lens device includes a liquid crystal optical unit and a drive unit. The liquid crystal optical unit includes a first substrate unit having a plurality of first electrodes and a plurality of second electrodes, and a second substrate unit having a first opposing electrode. The drive unit controls voltages between the first electrodes and the first opposing electrode and between the second electrodes and the first opposing electrode by changing the voltage between the second electrodes and the first opposing electrode from a third voltage to a fourth voltage after changing the voltage between the first electrodes and the first opposing electrode from a first voltage to a second voltage. In some embodiments, the liquid crystal lens device is included in the image display apparatus along with an image display unit.

Abstract: An image processing apparatus includes a weight calculation unit, a gamma calculation unit, and a conversion unit. The weight calculation unit calculates a weight coefficient to calculate a second gamma characteristic based on light information of an image. The second gamma characteristic has a narrower range of lightness than a first gamma characteristic. The first gamma characteristic represents a characteristic of a display connected to the apparatus in the dark. The gamma calculation unit calculates the second gamma characteristic based on the weight coefficient, and calculates a gamma conversion function based on the second gamma characteristic. The second gamma characteristic more approximates a lightness of the first gamma characteristic if the light information is darker, and more approximates a gradation of the lightness of the first gamma characteristic if the light information is brighter. The conversion unit converts pixel values of the image, based on the gamma conversion function.

Abstract: Remaining power information regarding remaining power generation capability of a power generation apparatus is reported. A power management apparatus (2) includes a communication interface (22) that receives remaining power information regarding remaining power generation capability of a power generation apparatus (10) from a power conversion apparatus (1) and an output interface (23) that outputs the remaining power information.

Abstract: Remaining power generation capability of power generation apparatuses is estimated to a high degree of accuracy. A power conversion apparatus (1) includes input interfaces (11) that input generated power from each of multiple power generation apparatuses (10) of the same type and a controller (14) that performs MPPT control on a priority basis on at least one input interface among the input interfaces and acquires the remaining power generation capability of the power generation apparatuses (10) connected to the other input interfaces (11) by calculation using the generated current of the power generation apparatus (10) connected to the at least one input interface.

Abstract: Remaining power information regarding remaining power generation capability of a power generation apparatus can be transmitted. A power conversion apparatus includes a controller that acquires remaining power generation capability of a power generation apparatus and a communication interface that transmits remaining power information regarding the remaining power generation capability to an external power management apparatus.

Abstract: According to one embodiment, an image processor includes: an acquisitor; a predictor; a corrector. The acquisitor acquires information regarding shape of a projection surface on which a first image is projected, information regarding position of a viewpoint for observing the first image projected on the projection surface, and information regarding position of a projection point for projecting the first image. The predictor predicts a viewable region in which the first image projected on the projection surface is viewable from the viewpoint based on the acquired information regarding the shape, the acquired information regarding the viewpoint, and the acquired information regarding the projection point. The corrector corrects a second image to generate the first image, the second image being set within the viewable region.

Abstract: An information processing device includes a storage and an circuit. The storage stores first distance information indicating a distance between a reference point and a first surface and first shape information indicating a surface shape of the first surface. The circuit acquires second distance information indicating distance between the reference point and an object. The circuit determines if an operation inputted by user is present or absent by using the second distance information. The circuit determines whether a first condition is satisfied or not by comparing the first shape information with second shape information. The circuit updates the first distance information based on the second distance information when the operation is determined to be absent and the first condition is determined to be satisfied.

Abstract: According to an embodiment, an image processing apparatus includes a corresponding point calculator, a parameter calculator, a corrector, and a detector. The corresponding point calculator calculates corresponding points between an input image and a captured image including a projection surface onto which a projection image is projected. The projection image is generated from the input image. The parameter calculator calculates a correction parameter based on the input image, the captured image, and the corresponding points. The corrector corrects pixel values of the input image using the correction parameter with respect to each color component. The detector detects a change in the projection surface. When the detector detects the change in the projection surface, the corresponding point calculator updates the corresponding points for the change, and the parameter calculator calculates the correction parameter based on the updated corresponding points.

Abstract: According to one embodiment, an image processor includes a processor. The processor implements acquiring a first image and first information. The first information indicates a condition of a first projection surface. The first information includes a first color gamut of the first projection surface. The processor implements deriving a second color gamut according to the first color gamut derived by using the first information. The processor implements converting a chromaticity of the first image to obtain a second image. Each pixel of the second image has a color included in the second color gamut. The processor implements generating a first converted image by correcting the second image based on the first color gamut.

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, a liquid crystal optical device includes an optical unit and a control unit. The optical unit includes a first substrate unit, a second substrate unit, and a liquid crystal layer. The first substrate unit includes a first substrate having a first surface, and first elongated electrodes provided on the first surface. The second substrate unit includes a second substrate having a second surface opposing the first surface, first opposing electrodes provided between the first and second substrates and a second opposing electrode provided between the first and second substrates. The liquid crystal layer is provided between the first and second substrate units. The control unit is electrically connected to the first elongated electrodes, and the first and second opposing electrodes. The control unit implements a first operation of forming a first voltage distribution and a second operation of forming a second voltage distribution.

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 one embodiment, a liquid crystal optical device includes an optical unit and a controller. The optical unit includes first and second substrates, first electrodes, first and second counter electrodes, and a liquid crystal layer. The controller controls a voltage applied to the first electrodes, and the first and second counter electrodes. The controller performs a plurality of display modes based on at least one of image information and a control signal being obtained to forms a plurality of lens. The image information is inputted to an image display unit stacked with the optical unit and emits an image light.

Abstract: According to an embodiment, an information processing device includes a detector and a controller. The detector detects a pointed position pointed by a pointing object on a projection plane onto which light including information of an input image is projected. When the pointed position belongs to a first region on the projection plane, the controller performs control for executing first processing corresponding to an operation on the first region based on the pointed position. The first region includes a part of a projection image formed by projecting the light onto the projection plane. When the pointed position belongs to a second region on the projection plane, the controller performs control for executing second processing corresponding to an operation on the second region based on the pointed position. The second region includes a smaller part of the projection image than the part of the projection image included in the first region.

Abstract: According to one embodiment, a liquid crystal optical element includes first and second substrate units, a liquid crystal layer, and spacers. The first substrate unit includes a first substrate and first electrodes. The first substrate has a first major surface. The first electrodes are provided on the first major surface, extend along a first direction, and have a first width in a second direction perpendicular to the first direction. The second substrate unit includes a second substrate and an opposing electrode. The second substrate has a second major surface opposed to the first major surface. The opposing electrode is provided on the second major surface. The liquid crystal layer is provided between the first and second substrate units. The spacers are in contact with the liquid crystal layer. A diameter of each spacer is larger than the first width.

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 one embodiment, an image processor includes a setter and a corrector. The setter sets correction information to cause an entirety of an object image to be viewable when an image projected onto a projection surface is viewed from a viewpoint. The object image is projected from a projection position. The setting is performed based on information relating to a configuration of the projection surface where the object image is projected, information relating to the projection position, and information relating to a position of the viewpoint. The corrector corrects the object image based on the correction information.

Abstract: According to one embodiment, an image processor includes: a detector; a calculator; and a corrector. The detector calculates a state signal indicating whether or not an operation is being performed on a projection surface where an image is projected. The calculating is based on information relating to the projection surface. The calculator calculates a correction parameter based on the state signal and the information relating to the projection surface. The corrector generates a corrected image based on the correction parameter and an image to be processed.