Seiko Epson Corporation

Yoichi Shishido

Takashi Endo

Ippei Kurota

A projection system controlling method includes identifying a first correspondence, identifying a second correspondence, identifying a third correspondence between a plurality of pixels corresponding to an overlap region in an image projected by a first projector, accuracy of the third correspondence is higher than accuracy of the first correspondence, identifying a fourth correspondence between a plurality of pixels corresponding to the overlap region in an image projected by a second projector, accuracy of the fourth correspondence is higher than accuracy of the second correspondence, projecting an image onto a region different from the overlap region based on the first correspondence, projecting an image onto the overlap region based on the third correspondence, projecting an image onto a region different from the overlap region based on the second correspondence, and projecting an image onto the overlap region based on the fourth correspondence.

Projection system controlling method, and projector

A projection method including specifying a first correspondence between a projector coordinate system and a camera coordinate system, based on a first picked-up image and a first image, determining a second correspondence between the projector coordinate system and the camera coordinate system, based on a second picked-up image and a second image, generating correction information, based on one or a plurality of first feature points in a third image acquired by converting the first picked-up image into the projector coordinate system, based on the first correspondence, and one or a plurality of second feature points corresponding to the one or plurality of the first feature points, in a fourth image acquired by converting the second picked-up image into the projector coordinate system, based on the second correspondence, and projecting the projection image that is corrected based on the correction information.

Projection method and non-transitory computer-readable storage medium storing a program

A projector projects a first image onto a projection surface to thereby display a first projected image on the projection surface, acquires first imaging data obtained by capturing the first projected image, determines, based on the first imaging data, a type of a three-dimensional shape on the projection surface, projects a second image including a plurality of points onto the projection surface to thereby display a second projected image on the projection surface, acquires second imaging data obtained by capturing the second projected image, specifies, based on the second imaging data and the type of the three-dimensional shape on the projection surface, positions of the respective plurality of points on the projection surface, generates, based on the positions of the respective plurality of points, and correction data for correcting distortion of an image projected onto the projection surface, corrects, based on the correction data, image data input to the projector.

Control method for projector and projector

A first image including a first line segment is projected onto a projection surface to acquire first imaging data of a first projected image. A second image including a first mark and a second mark overlapping the first line segment is projected onto the projection surface to acquire second imaging data of a second projected image. Based on a positional relation between a third mark and a fourth mark located on a second line segment corresponding to the first line segment and a positional relation between the first mark and the second mark located on the first line segment, relation data that associates the first mark and the third mark and associates the second mark and the fourth mark is generated. Correction data is generated based on the relation data. Image data is corrected based on the correction data. A corrected image is projected onto the projection surface.

A method for controlling a projector having a projection lens and a camera includes an acquisition step of acquiring a focal distance of the projection lens, a determination step of determining a size and an interval of dots configuring a projection pattern based on the focal distance, a projection step of projecting the projection pattern by the projection lens, and capturing step of capturing the projection pattern by the camera to generate a captured image.

Method for controlling projector, projector, and display system

A projector includes: a solid-state light source; a diffractive element that dynamically controls diffraction of light from the solid-state light source; a light modulator that modulates, in response to image information, diffracted light emitted from the diffractive element to generate image light; and a projection optical system that projects the image light.

Projector

A projector includes a plurality of light sources, a light modulator that modulates light fluxes emitted from the plurality of light sources based on input information, a projection system that projects modulated light fluxes from the light modulator, a light guiding system that has different areas on which the plurality of light fluxes emitted from the plurality of light sources are incident and guides the plurality of incident light fluxes to the light modulator, a lighting state detector that detects lighting states of the plurality of light sources, and a controller that corrects the input information with correction information based on a viewing angle characteristic of the light modulator in accordance with the lighting states of the plurality of light sources detected by the lighting state detector.

Projector with a light modulator controlled based on a viewing angle characteristic of the light modulator

A projector includes a plurality of light sources, an integrator lens and an overlapping lens, a light guide optical system, a light control device, a light modulation device, and a projection optical system, the light control device includes a pair of light-blocking members opposed to each other across a light path of the light emitted from the light sources in one direction in which the plurality of partial areas is arranged on the integrator lens, and a control device adapted to move the light-blocking members into and out of the light path, and the control device moves the pair of light-blocking members into and out of the light path so that the light entering the overlapping lens has a shape with a symmetric property in accordance with lighting and extinction states of the plurality of light sources.

Projector and illumination device

A projection system includes a projector body including a projection lens that projects image light, a color wheel located in a position downstream of the projection lens, a lens moving section that moves the projection lens from an initial position in at least one of an X direction and a Y direction, a movement amount detection unit that detects the amount of movement of the projection lens and the position to which the projection lens has been moved, an adjustment section that changes the position and the attitude of the color wheel, and an adjustment controller that controls the adjustment section in accordance with a detection result from the movement amount detection unit to adjust at least one of the position and the attitude of the color wheel.

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Matsumoto, Japan

Yoichi Shishido