Ricoh Company, Ltd.

Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Tamapack Co., Ltd.

International Business Machines Corporation

Shindengen Electric Manufacturing Company Limited

Yamanashi Electronics Co., Ltd.

Masaaki Ishikawa

Hiroshi Shimura

Takashi Saitoh

Haike Guan

Taeko Ishizu

Yukinaka Uchiyama

Michihisa Iguchi

Yasushi Abe

Seiji Arai

Tetsuya Nakamura

Hiroyuki Yoshida

Hiroshi Hashizume

Hirotaka Fukuyama

Masao Yamada

Motohiro Kuroda

Koichi Suzuki

Takashi Ishikawa

Satoshi Nakamura

Takahito Kabai

Noboru Murayama

Masaichi Niro

Yoshiaki Okano

Koji Kuwata

Satoshi Katagata

Kouichirou Satou

Chinobu Sakai

Yasunori Ishikawa

Hideaki Yamagata

Hiroshi Arai

Koichiro Sato

Toshio Takagi

Yasuo Fujii

Akihiro Mihara

Guan Haike

Shuji Nishina

Masatoshi Maruta

Seiichi Koizumi

Jiro Hukasawa

Hideya Ino

Jinichi Satoh

Tsutomu Ooishi

A projection system for projecting an image onto a projection body having a curve in one direction by projection units includes processors and memory, which upon execution, causes the projection system to extract a set of grid points indicating distortion of a projected image from captured calibration images; to convert each set of grid points of a target projection unit commonly extracted from captured calibration images having a calibration pattern projected on the projection body in different imaging ranges in association with the one direction onto a common coordinate system; to combine the converted sets of grid points on the common coordinate system in accordance with position; and to calculate a correction coefficient based on the combined sets of grid points.

Projection system, image processing apparatus, projection method

A projection system, apparatus, and method in which a plurality of projectors project images to form an image as a whole on a projected area which is a screen area on which a content image is projected without a frame. Images for calibration are output by the plurality of projectors, the images for calibration including positioning markers that are indications for positioning to the corners of the projected area. Correction coefficients are calculated based on reference points of the projected area, and a projection target area is defined which corresponds to the screen area.

Projection system, image processing apparatus, and calibration method

A projection system includes projection units collectively projecting an image as a whole on a projection area; a generation unit generating correction images including correction points which are used for detecting distortions of projection images based on designated relationships; and a compensation coefficient calculation unit calculating compensation coefficients, based on correction captured images acquired from the correction images on the projection area. Further, margin parts are generated in the correction images in a manner so that parts defining the correction points in the correction images are projected within the projection area while the parts defining correction points in the correction images corresponding to the projection units that are next to each other are overlapped.

Projection system, image processing apparatus, and correction method

A projection system includes a plurality of projection units configured to project an image as a whole; a receiver configured to receive an instruction for shifting reference points that define a projection target area onto which the plurality of projection units project the whole image on an occasion of an initial calibration processing; a storage unit configured to store the reference points of the projection target area used in the initial calibration processing; a controller configured to start a recalibration processing in response to an event; a setting unit configured to reset the projection target area based on the reference points stored in the storage unit on an occasion of the recalibration processing; and a correction coefficient calculator configured to calculate correction coefficients for the plurality of projection units based on the projection target area that is reset by the setting unit.

Projection system, image processing apparatus, and computer-readable storage medium

A projection system for projecting an image onto a projection body by a plurality of projection devices, includes an image preparation unit configured to prepare a plurality of imaging images for calibration, a grid point extraction unit configured to extract a set of grid points that indicates a distortion of a projection image for at least one projection device from each of the plurality of imaging images for calibration, a grid point transformation unit configured to execute a transformation between a plurality of images that are imaged in different imaging ranges on the plurality of imaging images for calibration in such a manner that each set of the grid points that are commonly extracted for a subject projection device is provided in a common coordinate system, a grid point synthesis unit configured to produce a set of the grid points that are synthesized for a subject projection device based on a plurality of sets of the grid points in the common coordinate system, and a correction coefficient calculation unit configured to calculate a correction coefficient for a subject projection device based on a set of the synthesized grid points.

Projection system, image processing device, and projection method

A projection system includes projection units configured to project an image on a projection body; a preparing unit configured to prepare calibration-use images; an extraction unit configured to extract, from each of the calibration-use images, at least grating points indicating a distortion in a projected image of one of the projection units and alignment points of the projected image of the one of the projection units or another one of the projection units; a conversion unit configured to convert, onto a common coordinate system, the grating points of the projected images of the projection units extracted from the calibration-use images, based on alignment points common to the calibration-use images; and a geometric correction coefficient calculation unit configured to calculate a geometric correction coefficient for providing a projection image to be projected from the projection units, based on the grating points on the common coordinate system.

Projection system, device and method for the output of calibration projection scenes

An image projection system projects a plurality of same images on a plane of projection by superimposition. The image projection system includes a plurality of projectors configured to have mutually different resolutions and project the plurality of same images on the plane of projection, and an image data output device configured to output to the plurality of projectors image data corresponding to the plurality of same images with the resolutions of the plurality of projectors, respectively.

Image projection system and image projection method

An image processing device extracts additional information from image data and includes an input unit to input a plurality of image data items, an additional information extracting unit to extract an additional information item from each image data item, and a determining unit to determine a process to be performed for each image data item based on the extracted additional information item. The determining unit is configured to determine a process to be performed for an image-data group containing the plurality of image data items, based on a plurality of additional information items extracted from the plurality of image data items, and determine a process to be performed for each image data item based on one of the plurality of additional information items.

Image processing device and method for determining image data processes based on additional information

An apparatus, method, and system of generating a confidential document by adding additional information to image data are described, each of which obtains administrator setting information set by an administrator, and user setting information set by a user. Information for display to the user is controlled based on at least the administrator setting information to satisfy the requirement set by the administrator setting information even when the user setting information differs from the administrator setting information.

Apparatus, method, and system of controlling setting information for confidential document

An apparatus, system, and method for image processing are disclosed, each of which obtains a mark from image data, detects additional information in the mark, determines whether the mark is detected in the mark to generate a determination result, and controls processing performed by an image processing apparatus with respect to the image data based on the determination result.

Apparatus, system, and method of process control based on the determination of embedded information

An image processing apparatus includes an obtaining unit, an area setting unit, and an adding unit. The obtaining unit obtains an adding method by which additional information is to be added to image data containing content information. The area setting unit sets an additional-information area to which the additional information is to be added based on the adding method and the content information. The adding unit adds the additional information to the additional-information area by the adding method.

Apparatus, method, and computer product for image processing

A confidential document is generated by encoding distribution destination information specifying a destination to which the confidential document will be distributed.

Apparatus, system, and method for image processing for generating and/or managing a confidential document

An image processing apparatus configured to embed embedment information in image data includes an embedment information acquisition unit configured to acquire embedment information to be embedded in the image data, an information embedment manner determination unit configured to determine an information embedment manner to embed the embedment information according to one of the acquired embedment information and image data to be generated by embedding the acquired embedment information in the image data, and an information embedment unit configured to embed the acquired embedment information in image data according to the information embedment manner determined by the information embedment manner determination unit.

Image processing apparatus, image processing method, and program product

An image processing apparatus embedding information in an image by combining multiple predetermined patterns with the image is disclosed that includes a level determination part configured to determine at least one of the levels of conditions to be added regarding the disposition of the predetermined patterns, to which at least one of the levels the information to be embedded belongs; and a pattern combining part configured to combine the predetermined patterns with the image in accordance with the condition corresponding to the information to be embedded at the determined at least one of the levels. If the information to be embedded belongs to two or more of the levels, the pattern combining part combines the predetermined patterns so that the conditions corresponding to the information to be embedded are satisfied at the two or more of the levels.

Image processing apparatus and image processing method

An image processing method is disclosed that is capable of efficient information extraction when embedding information in an image by using plural information embedding methods. The image processing method includes steps of embedding target information in the image by using one or more methods selected from plural information embedding methods; and embedding identification information in the image for identifying the selected one or more methods. The identification information is embedded in a method allowing an amount of the embedded information to be less than an amount of the embedded information in each of the selected one or more methods.

Image processing device and image processing method for identifying a selected one or more embedding methods used for embedding target information

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Tokyo, Japan

Masaaki Ishikawa