Seiko Epson Corporation

Tatsuhiko Nobori

Fumio Koyama

Haruyoshi Yamada

Toru Katahira

Katsuhiro Matsuyama

Tetsuo Terashima

Daisuke Hayashi

Hirotaka Mochizuki

Shunsuke Hino

A method for controlling a display system is a method for controlling a display system including a first terminal, a second terminal, and a display apparatus that displays an image on a screen, and the method includes transmitting first transmission data representing a first image from the first terminal to the display apparatus and transmitting second transmission data representing a second image from the second terminal to the display apparatus. In a case where the display apparatus displays the first image on the screen based on the first transmission data but does not display the second image on the screen based on the second transmission data, the display apparatus controls at least one of the first and second terminals in such a way that the first transmission data has a larger communication traffic volume than the second transmission data.

Method for controlling display system, display system, and display apparatus

A projector that projects an image based on image data, includes alight source, a modulation unit that modulates light which is emitted from the light source, a light attenuation rate setting unit that sets a light attenuation rate based on the image data, and a light adjustment unit that adjusts intensity of incident light of the modulation unit, according to the light attenuation rate which is set by the light attenuation rate setting unit. The light attenuation rate setting unit sets a minimum value of an adjustment range of the light adjustment unit in a case where the image data is stereoscopic image data to a higher value than a minimum value of an adjustment range of the light adjustment unit in a case where the image data is not stereoscopic image data.

Projector and method of controlling a projector

An image processing device includes a first extension ratio calculation section adapted to calculate a first extension ratio based on a grayscale value included in first image data, a second extension ratio calculation section adapted to calculate a second extension ratio based on a grayscale value included in second image data, a first extension section adapted to correct the grayscale value included in the first image data based on the first extension ratio, a second extension section adapted to correct the grayscale value included in the second image data based on selected one of the first extension ratio and the second extension ratio, and a combination section adapted to generate composite image data obtained by combining the first image data having the grayscale value corrected by the first extension section and the second image data having the grayscale value corrected by the second extension section with each other.

Image processing device, projector, and image processing method

An image processing device includes a selection section adapted to select a first correction point among a plurality of correction points included in a correcting image, an identification section adapted to identify a second correction point and a third correction point adjacent to the first correction point, and a display control section adapted to emphasize a first line segment connecting the first correction point and the second correction point to each other, and a second line segment connecting the first correction point and the third correction point to each other, and display the correcting image on a display section.

Image processing device, projector and image processing method for correcting a displayed image

A projector includes a light source portion; a light source control portion that controls an amount of light emitted by the light source portion; a feature amount acquisition portion that inputs image data and calculates an image feature amount of the input image data; an amount of light acquisition portion that acquires a set amount of light of the light source portion based on an image feature amount; a correction value acquisition portion that acquires a correction value based on the set amount of light; and an amount of light correction processing portion that corrects the set amount of light by using the correction value acquired by the correction value acquisition portion. The light source control portion controls the amount of light of the light source based on the set amount of light that is corrected by the amount of light correction processing portion.

Projector and light source control method

A projector that displays an image based on image data, includes a light source; a modulation unit that modulates light which is emitted from the light source based on the image data; and a correction processing unit that controls the modulation unit so as to compensate for an influence of light reflected from the modulation unit to the light source side, based on luminance of the image data.

Projector and method of controlling projector

An image display apparatus includes a display unit configured to display an image, an information acquisition unit configured to extract a target image and a comparison image, to cut first and second regions from the extracted target image, to cut third and fourth regions from the extracted comparison image, and to obtain an image feature quantity of each of the first to fourth regions, a comparison unit configured to perform comparison of the image feature quantities of the first region and the third region, and to perform comparison of the image feature quantities of the second region and the fourth region, and a feature quantity setting unit configured to perform weighting to the first region and the second region based on the comparison result of the comparison unit, and to obtain an image feature quantity of the entire target image based on the result of weighting.

Image display apparatus and method of controlling image display apparatus

A light control device adjusts light intensity. The light control device determines whether or not the image based on an image signal is a correction object based on an image feature quantity of the image signal, and set adjustment information for adjusting intensity of light based on the determined result. Then, the light control device adjusts the light intensity of the light for the image display based on the adjustment information.

Dimming control device, image display device, and dimming control method

An image transmission device which transmits image data of a display image to be displayed by a display device includes: a selecting unit which selects an object constituting the display image; a data generating unit which generates transmission data to serve as the image data of the display image on the basis of image data of the selected object; and a data transmitting unit which transmits the generated transmission data to the display device.

Image transmission device, display system, image transmission program, and recording medium

An image processing apparatus includes a signal generation section that generates a drive signal to drive a light attenuation member that attenuates light radiated from a light source based on a difference between first transmittance and second transmittance, the first transmittance being a target value calculated based on image data and the second transmittance being detected based on the position of the light attenuation member, an expansion factor calculation section that calculates an expansion factor based on the first transmittance and the second transmittance, an expansion section that expands the range of the distribution of luminance values in the image data based on the expansion factor calculated by the expansion factor calculation section, and an output section that outputs the image data expanded by the expansion section to a driver that drives a light modulator that modulates light incident thereon.

Image processing apparatus, projector, and image processing method

When a user instructs a control unit about a position in a substantially central portion of an illustration with an electronic pen, the control unit determines a rectangular area that surrounds the illustration as an enhancement area. An image adjustment unit carries out a process of shifting the portion in the enhancement area in an image for the left eye rightward by a predetermined amount and shifting the portion in the enhancement area in an image for the right eye leftward by a predetermined amount. As a result, the illustration located in the enhancement area is so changed that the image for the left eye is shifted to a position to the right of the image for the right eye and hence recognized as if the illustration were located in front of other illustrations. The illustration in the enhancement area is thus enhanced.

Image display apparatus and method for controlling the same

An image display device includes: a feature value calculating section which calculates an image feature value related to the brightness of image data using parallax between image data for a right eye and image data for a left eye which form 3D image data; an expanding coefficient calculating section which calculates an expanding coefficient, which is related to brightness expand processing, on the basis of the image feature value; a brightness expanding processing section which performs brightness expanding processing on the image data for the right eye and the image data for the left eye on the basis of the expanding coefficient; and an image display section which displays an image on the basis of the image data for the right eye and the image data for the left eye subjected to the brightness expanding processing.

Image display device, image supply device, and image processing method with brightness expanding processing for improved contrast sensitivity in a 3D image

A projector modulates light emitted from a light source and projects the light, the projector including an image acquiring unit, a modulating unit, a light adjusting mechanism, and a light adjusting control unit. The image acquiring unit acquires an image from an image source. The modulating unit modulates the light emitted from the light sources, based on the image acquired by the image acquiring unit. The light adjustment mechanism reduces an amount of light incident on the modulating unit from the light source. The light adjustment control unit performs light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit. The light adjustment control unit performs control to increase the amount of light incident of the modulating unit when the light adjustment mechanism maintains a predetermined light-adjusted state.

Projector and control method for projector

A projector which modulates light emitted from a light source and projects the light, the projector including: an image acquiring unit for acquiring an image from an image source; a modulating unit for modulating the light emitted from the light sources, based on the image acquired by the image acquiring unit; a light adjustment mechanism for reducing an amount of light incident on the modulating unit from the light source; and a light adjustment control unit for performing light adjustment control by the light adjustment mechanism, based on the image acquired by the image acquiring unit; wherein the light adjustment control unit stops execution of the light adjustment control when at least one of an operating state of the projector and a state of the image acquired by the image acquiring unit meets a predetermined condition.

To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination moduledetects a scene change, it changes an expansion coefficient output mode from a normal mode to a scene change mode. An expansion coefficient derivation moduleoutputs an first expansion coefficient Gid(n) if the scene change is detected, and outputs a second expansion coefficient G(n) if the scene change is not detected.

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Matsumoto, Japan

Tatsuhiko Nobori