Hewlett-packard Development Company, L.p.

Richard Aufranc

Olan C Way

Thomas M Carrico

Bruce A Stephens

Peter James Fricke

David C Collins

P Guy Howard

James R Cole

John A Devos

Paul S Everest

Timothy D Emmerich

Roshan B Baliga

Projector alignment in a multiple-projector projection system is checked by determining a location of at least a portion of a boundary of an image field projected by at least one of the projectors and comparing the determined location of the at least the portion of the image field to a system-calibrated reference location of the at least the portion of the boundary of the image field.

Projector alignment in a multiple-projector projection system

A method of calibrating a projection system is disclosed. The method includes determining a location of at least one hotspot on a screen within the projection system, initiating a calibration sequence of the projection system and ignoring the at least one hotspot during the calibration sequence of the projection system.

Calibrating a projection system

A system for defining a bounding box include one or more image projectors; one or more optical beam generators; a display surface; a computing element; and a digital image sensor. The digital image sensor is configured to sense a location of image orientation indicators generated by the optical beam generators. The computing element is configured to communicate with the digital image sensor to determine a bounding box defined by the locations of the image orientation indicators and to control the one or more image projectors to project an image in, and corresponding to, the bounding box on the display surface.

Defining a bounding box for projected images

Embodiments for determining a delay are disclosed.

Determining a delay

A device and method is provided for projecting an image within a defined content area using a plurality of projectors configured to each project a portion of an image. The device comprises a defined content area into which the image is projected by the plurality of projectors. A first group of projectors can be selected from the plurality of projectors and set at a first zoom level, then aligned and superpositioned with respect to one another to increase the pixel resolution and brightness of the projected image. The projectors can project a majority of projector light within the content area. A second group of projectors can be selected from the plurality of projectors, set at a second zoom level, aligned and superpositioned adjacent each other to project a majority of projector light within the content area. The first group of projectors can be superimposed with the second group of projectors to fill the content area and increase the pixel resolution and brightness of the projected image.

System and method of projecting an image using a plurality of projectors

A method of correcting luminance non-uniformity in a tiled projection system is disclosed. The method includes projecting with a plurality of projection devices a composite image wherein the composite image comprises a plurality of tiled images on a display surface with an overall luminance and correcting a luminance non-uniformity of the plurality of tiled images, wherein the luminance non-uniformity is based on a dimmed at least one of the plurality of tiled images, wherein correcting the luminance non-uniformity comprises utilizing at least one of the plurality of projection devices to adjust the overall luminance of the plurality of tiled images on the display surface.

Correcting luminance non-uniformity in a tiled projection system

A system and method for masking images in a multi-projector system, including: converting, using signal processors associated with at least two projectors, at least two independent input video signals into at least two independent signals for masked images, each masked image having an image region and a region of attenuated brightness comprising a mask having substantially no brightness, wherein a mask of one masked image interfaces in a composite image with an image region of another masked image; independently projecting the at least two masked images via the at least two projectors to a common location to form the composite image, such that the at least two masked images are at least partially superimposed; and gradually attenuating brightness in a spatial manner adjacent to a boundary of a mask of at least one of the masked images.

System and method for masking and overlaying images in multiple projector system

Embodiments including a charge responsive optical material are disclosed.

Optical modulation system

A method of displaying an image with a display device is provided. The method comprises receiving first image data for the image where the first image data is associated with a first color space, converting the first image data to second image data associated with a second color space, generating first and second sub-frames using the second image data, and alternating between displaying the first sub-frame in a first position and displaying the second sub-frame in a second position spatially offset from the first position.

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Albany, OR, United States of America

Richard Aufranc