Seiko Epson Corporation

Yoshiteru Uchiyama

Toshiki Fujimori

Toru Karasawa

Takahiro Ano

Yoshiyuki Kodama

Akihiro Kashiwagi

Issei Yokoyama

Yasuhiro Nakamura

Yuki Mori

Takumi Takahashi

Makoto Mikami

Katsuyoshi Yamaguchi

An image correction method according to an aspect of the present disclosure includes receiving an input of selecting one of a first method for correcting a shape of an image projected from a projector onto a projection surface and a second method that is a method for correcting the shape of the image and is different from the first method, outputting a signal for causing the projector to project a first pattern image when the first method is selected, generating first correction data for correcting the shape of the image using the first method based on a first captured image that is acquired by imaging the projection surface and includes the projection surface and a first projection image appearing on the projection surface by projecting the first pattern image, outputting a signal for causing the projector to project a second pattern image different from the first pattern image when the second method is selected, and generating second correction data for correcting the shape of the image using the second method based on a second captured image that is acquired by imaging the projection surface and includes the projection surface and a second projection image appearing on the projection surface by projecting the second pattern image.

Image correction method, information processing apparatus, and non-transitory computer-readable storage medium

A method of controlling a projector includes projecting a correction image having a rectangular shape in which a plurality of correction points is arranged on a first side out of four sides on a projection surface, receiving an operation of moving a first correction point included in the plurality of correction points in a first direction, moving another correction point than the first correction point out of the plurality of correction points in a second direction opposite to the first direction when an amount of movement in the first direction of the first correction point by the operation is larger than a threshold value, and projecting an output image obtained by applying a distortion correction based on the moving the another correction point than the first correction point to an input image on the projection surface.

Method of controlling projector and projector

An image transmission system includes an image transmitting device coupled to a computer, and an image receiving device coupled to a projector, and transmits image information from the image transmitting device to the image receiving device via wireless communication. The image receiving device detects a state of the wireless communication by the image transmitting device, outputs a first control signal turning on a power of the projector to the projector when detecting that the wireless communication is started, receives the image information transmitted from the image transmitting device, and outputs the received image information to the projector.

Image transmission system, image receiving device, and control method for image receiving device

A control method for a display device includes: determining whether an illuminance in an environment where a display device having a light source is installed belongs to a first range or a second range; when the illuminance in the environment belongs to the first range, adjusting a luminance of the light source by referring to first luminance information designating the luminance corresponding to when the illuminance in the environment belongs to the first range; when the illuminance in the environment belongs to the second range, adjusting the luminance by referring to second luminance information designating the luminance corresponding to when the illuminance in the environment belongs to the second range; when a first operation of changing the luminance when the illuminance belongs to the first range is accepted from a user, updating the first luminance information to an updated first luminance information in response to the first operation; updating the second luminance information, based on the updated first luminance information; when a second operation of changing the luminance when the illuminance belongs to the second range is accepted from the user, updating the second luminance information to an updated second luminance information in response to the second operation; and updating the first luminance information, based on the updated second luminance information.

Display device and control method for display device

A projector has a projection optical system including a projection lens and a processing device. The processing device makes the projection optical system project a correction image having a rectangular shape. The number of correction points arranged on a first side out of two sides connecting to a vertex located the farthest from the projection lens when projected on a projection surface out of four vertexes of the correction image is larger than the number of correction points arranged on a side different from the two sides. The processing device receives an operation of moving first correction point included in the correction points arranged on the first side, and makes the projection optical system project an output image obtained by applying a distortion correction based on the operation to an input image.

A method of operation performed by a display device displaying an image on a display surface includes the steps of displaying a first image in the display surface's first area, and displaying second image in a second area different from the display surface's first area, displaying a third image formed by superimposing a writing image to the second image on the second image in second area instead of the second image, determining whether or not a condition for changing an image to be displayed in the first and second area is fulfilled, and changing the image to be displayed in the first area from first image to third image and changing image to be displayed in second area from third image to a fourth image when it is determined that the condition is wherein the first image is displayed in first area and third image is displayed in second area.

Method of operation of display device and display device

A control method including home screen display step of making display section display a home screen where identification images representing the respective input interfaces are displayed in respective display areas so as to correspond one-to-one when image information is not input to N input interfaces provided to the display device, determination step of determining whether one of the input interfaces has changed to state in which the image information is input, identification step of identifying display area having the highest priority representing an order of displaying image out of the display areas where the identification images are currently displayed when the determination result is affirmative, and home screen information update step of displaying image input to input interface in display area thus identified, and displaying the identification images of the input interfaces in the state in which the image information is not input in the display areas lower in priority.

Method of controlling display device, and display device

A display device includes an input section to which image information is externally input, a display section adapted to display an image based on the image information on a display surface, and a control section adapted to control the display device based on setting information related to an operation of the display device to make the display section display the image, and change the setting information from first setting information to second setting information in accordance with an instruction for changing the setting information. In the case in which the image information is not input to the input section for a first time period after the control section changes the setting information from the first setting information to the second setting information, the control section changes the setting information from the second setting information to the first setting information.

Display device, and method of controlling display device

A display apparatus includes a display section that displays an image and a controller that controls the display apparatus based on setting information to cause the display section to display the image and changes the setting information from first setting information to second setting information in accordance with a first instruction. In a state in which the controller has changed the setting information from the first setting information to the second setting information and causes the display section to display a first image based on first image information from the first input section, and when the controller receives a second instruction to cause the display section to display a second image based on second image information from the second input section, the controller changes the setting information from the second setting information to the first setting information and causes the display section to display the second image.

Display apparatus and method for controlling display apparatus

A projector includes: a projection unit; a position detection unit; and a calibration control unit which causes the projection unit to project a target image at a reference position within a projection range of the projection unit, acquires an operation position for the indicating operation detected by the position detection unit during the projection of the target image, and carries out calibration processing. The target image is projected, starting at the reference position located in a lower part of the projection range, of plural reference positions within the projection range.

Projector and control method with a starting reference position in a lower part of a target image

A portable information gathering apparatus and information managing method in the same make it possible to capture information entered through an input/display tablet, image information entered through an image input device and voice information entered through a voice input device, and other type of information for individual pages, each corresponding to all information displayed at one time on a screen. In response to an instruction given by a user of the portable information gathering apparatus, an attach-to-page icon setting unit attaches icons to desired pages to manage the page information in units of pages. Several of these icons are: an icon for managing the information captured in respective pages by time-related data such as date and time; an icon for specifying a particular page; an icon serving as a memo guide; and an icon for managing the information captured in the respective pages by the type of information.

Portable information gathering apparatus and information management method

The operability of the various kinds of operation buttons that carry out designated functions in a portable information acquisition device is improved so as to make the device user-friendly. Pairs of operation buttons in which each pair carries out a similar kind of function are configured with one operation button of each pair provided on the left side of the device main body, and one operation button provided on the right side. Further, operation buttons that carry out similar kinds of functions are provided in a plurality of opposing configuration of pairs on both the left and right sides, respectively. When the operation buttons are formed respectively into pairs carrying out different functions, in which each pair carries out a similar kind of function, the operation buttons are arranged in symmetrical positions on the left and right. Furthermore, various kinds of operation buttons are provided above the center axis dividing the device into upper and lower parts. Also, when two operation buttons that carry out different functions are arranged adjacent to one another, the operation button positioned to be operated by the tip of the finger is made larger than the other buttons.

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Suwa, Japan

Yoshiteru Uchiyama