Patents by Inventor Keiichi Sakurai
Keiichi Sakurai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120162387Abstract: A server sends to a client a message instructing movement of a display apparatus so that cameras comprising a view for creating a three-dimensional model can shoot a screen of a display apparatus. After movement is complete, the server causes an imaging parameter computation pattern image to be displayed on the screen of the display apparatus and instructs the client to cause the displayed pattern image to be shot by cameras. The server acquires images shot by the cameras from the client and seeks imaging parameters of the cameras on the basis of the pattern image included in the acquired images.Type: ApplicationFiled: December 28, 2011Publication date: June 28, 2012Applicant: CASIO COMPUTER CO., LTD.Inventors: Keiichi SAKURAI, Mitsuyasu NAKAJIMA, Takashi YAMAYA, Yuki YOSHIHAMA
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Publication number: 20120140040Abstract: The utility of a service using AR is improved. The information display apparatus which applies an information display according to augmented reality (AR) acquires a reference image for matching with a subject in a captured image and scale information which shows a scale of the subject in the reference image from an information provision apparatus. Then, an inputter-outputter of the information display apparatus displays the captured image as well as a distribution of the reference images by a scale of the subject. On this distribution display, a guide display according to the scale of the subject in the captured image is performed. This guide display moves on the distribution display corresponding to a change of an angle of view. Accordingly, it is easily set the angle of view by which the matching using the acquired reference image can be performed appropriately, and the convenience improves.Type: ApplicationFiled: December 7, 2011Publication date: June 7, 2012Applicant: CASIO COMPUTER CO., LTD.Inventors: Keiichi SAKURAI, Mitsuyasu Nakajima, Takashi Yamaya, Yuki Yoshihama
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Publication number: 20120139941Abstract: The matching processor acquires the key information such as position information and/or the like by the key information acquirer, and notifies to an external apparatus via the communicator. The matching processor stores the acquired key information in the storer corresponding to the identification information which is acquired from the external apparatus. When the acquired identification information does not exist in a AR data management table, the matching processor acquires the AR data by notifying the identification information to the external apparatus. When there is no empty record in a key information management table, key information of which usage date and time is old is considered as a deletion target. Moreover, when there is no empty record in the AR data management table, the AR data of which usage date and time is old is considered as the deletion target.Type: ApplicationFiled: December 7, 2011Publication date: June 7, 2012Applicant: CASIO COMPUTER CO., LTD.Inventors: Keiichi Sakurai, Mitsuyasu Nakajima, Takashi Yamaya, Yuki Yoshihama
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Patent number: 8195000Abstract: An image pickup apparatus is provided which informs a user of a state of brightness adjusting operation and which has excellent usability for the user. Disclosed is a digital camera including an image adder 5d for synthesizing a plurality of continuously taken image frames to produce a synthesized image, an image processing apparatus 5 for executing image brightness adjusting processing for synthesizing a required synthesis number of image frames and adjusting brightness of the synthesized image at the time of continuous picture-taking of a subject, and a display device for displaying an image which is being synthesized by the image adder in the image brightness adjusting processing.Type: GrantFiled: July 25, 2011Date of Patent: June 5, 2012Assignee: Casio Computer Co., Ltd.Inventors: Keiichi Sakurai, Takaaki Yui
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Publication number: 20120069018Abstract: A generating unit generates a 3D model of an object based on pair images obtained for the same object. An extracting unit extracts plural first feature points from a to-be-synthesis 3D model and plural second feature points from a synthesis 3D model. An obtaining unit obtains a coordinate conversion parameter based on the plural first feature points and second feature points. A converting unit converts a coordinate of the synthesis 3D model in a coordinate in the coordinate system of the to-be-synthesis 3D model using the coordinate conversion parameter. A synthesizing unit synthesizes all converted synthesis 3D models with the to-be-synthesis 3D model, and unifies feature points. A storing unit stores the synthesized 3D model of the object and information on the unified feature points in a memory card, etc. The stored data is used in an AR process.Type: ApplicationFiled: September 21, 2011Publication date: March 22, 2012Applicant: Casio Computer Co., Ltd.Inventors: Takashi YAMAYA, Keiichi Sakurai, Mitsuyasu Nakajima, Yuki Yoshihama
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Patent number: 8125544Abstract: An image processing apparatus includes: a line segment detecting unit configured to detect vertical line segments and horizontal line segments in an image; a facing-lines candidate generating unit configured to generate vertical and horizontal facing-lines candidates from the vertical and horizontal line segments, the vertical and horizontal facing-lines candidates being candidates for pairs of facing lines configuring quadrangle areas in the image; a rectangle candidate generating unit configured to generate a plurality of pairs of one of the vertical facing-lines candidates and one of the horizontal facing-lines candidates, and to generate the quadrangle areas as rectangle candidates; and a calculating unit configured to calculate likelihood of each of the rectangle candidates based on a relationship between line segments constituting the vertical facing-lines candidates and the horizontal facing-lines candidates and the rectangle candidates.Type: GrantFiled: August 18, 2009Date of Patent: February 28, 2012Assignee: Casio Computer Co., Ltd.Inventors: Masakazu Yoshii, Keiichi Sakurai, Ryohei Yamamoto
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Patent number: 8111949Abstract: A captured image projection apparatus obtains projection parameters and image effect correction parameters from a moving image captured at a low resolution in a task different from a task in which capturing of a high-resolution still image is to be performed, when a change ceases to occur in the moving image and before the capturing of the high-resolution still image is started. The apparatus changes the scale of the obtained projection parameters from one for low-resolution image to one for high-resolution image. The apparatus applies an image conversion process and an image effect process to the captured high-resolution still image by using the projection parameters and image effect correction parameters obtained before the still image is captured. Thereby, the captured image projection apparatus shortens the time required from the capturing of the image to projection thereof.Type: GrantFiled: February 25, 2005Date of Patent: February 7, 2012Assignee: Casio Computer Co., Ltd.Inventor: Keiichi Sakurai
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Publication number: 20110316976Abstract: An imaging apparatus generates a 3D model using a photographed image of a subject and generates a 3D image based on the 3D model. When a corresponding point corresponding to a point forming the 3D model does not form a 3D model generated using a photographed image photographed at a different photographing position, the imaging apparatus determines that the point is noise, and removes the point determined as noise from the 3D model. The imaging apparatus generates a 3D image based on the 3D model from which the point determined as noise is removed.Type: ApplicationFiled: June 16, 2011Publication date: December 29, 2011Applicant: CASIO COMPUTER CO., LTD.Inventors: Mitsuyasu Nakajima, Keiichi Sakurai, Takashi Yamaya, Yuki Yoshihama
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Publication number: 20110279711Abstract: An image pickup apparatus is provided which informs a user of a state of brightness adjusting operation and which has excellent usability for the user. Disclosed is a digital camera including an image adder 5d for synthesizing a plurality of continuously taken image frames to produce a synthesized image, an image processing apparatus 5 for executing image brightness adjusting processing for synthesizing a required synthesis number of image frames and adjusting brightness of the synthesized image at the time of continuous picture-taking of a subject, and a display device for displaying an image which is being synthesized by the image adder in the image brightness adjusting processing.Type: ApplicationFiled: July 25, 2011Publication date: November 17, 2011Applicant: CASIO COMPUTER CO., LTD.Inventors: Keiichi SAKURAI, Takaaki YUI
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Publication number: 20110249117Abstract: The distance between two points specified on an object is measured. The imaging part acquires a pair of images having parallax in one imaging operation on one and the same object. The display part displays a display image based on at least one image of the pair of images acquired. The reception part receives a start point and an end point specified on the object in the display image. The distance acquisition part calculates the positions in a real space of the start and end points specified on the object based on one pair or multiple pairs of images and acquires the distance between the start and end points on the object based on the calculated start and end point positions in the real space.Type: ApplicationFiled: April 8, 2011Publication date: October 13, 2011Applicant: CASIO COMPUTER CP.Inventors: Yuki YOSHIHAMA, Keiichi Sakurai, Mitsuyasu Nakajima, Takashi Yamaya
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Patent number: 8036486Abstract: It is an object of the present invention to provide an image pickup apparatus which informs a user of a state of brightness adjusting operation and which has excellent usability for the user. Disclosed is a digital camera including an image adder 5d for synthesizing a plurality of continuously taken image frames to produce a synthesized image, an image processing apparatus 5 for executing image brightness adjusting processing for synthesizing a required synthesis number of image frames and adjusting brightness of the synthesized image at the time of continuous picture-taking of a subject, and a display device for displaying an image which is being synthesized by the image adder in the image brightness adjusting processing.Type: GrantFiled: August 24, 2007Date of Patent: October 11, 2011Assignee: Casio Computer Co., Ltd.Inventors: Keiichi Sakurai, Takaaki Yui
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Publication number: 20110234759Abstract: A 3D modeling apparatus includes: a generator configured to generate 3D models of a subject based on pairs of images; a selector configured to select a first 3D model and a second 3D model from the 3D models, wherein the second 3D model is to be superimposed on the first 3D model; an extracting unit configured to extract first feature points from the first 3D model and extract second feature points from the second 3D model; an acquiring unit configured to acquire coordinate transformation parameters based on the first and second feature points; a transformation unit configured to transform coordinates of the second 3D model into coordinates in a coordinate system of the first 3D model, based on the coordinate transformation parameters; and a combining unit configured to superimpose the second 3D model having the transformed coordinates on the first 3D model.Type: ApplicationFiled: March 28, 2011Publication date: September 29, 2011Applicant: CASIO COMPUTER CO., LTD.Inventors: Takashi YAMAYA, Keiichi Sakurai, Mitsuyasu Nakajima, Yuki Yoshihama
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Publication number: 20110227924Abstract: A 3D modeling apparatus includes: an accepting unit configured to accept sets of images; a generator configured to generate 3D models of a subject based on the sets of images; a selector configured to select first and second 3D models from the 3D models, wherein the second 3D model is to be superimposed on the first 3D model; a divider configured to divide the second 3D model into second regions; a specifying unit configured to specify first regions in the first 3D model, wherein each of the first regions corresponds to one of the second regions; an acquiring unit configured to acquire coordinate transformation parameters; a transformation unit configured to transform coordinates of the second regions based on the coordinate transformation parameters; and an updating unit configured to superimpose the second regions having the transformed coordinates on the first regions to update the first 3D model.Type: ApplicationFiled: March 16, 2011Publication date: September 22, 2011Applicant: CASIO COMPUTER CO., LTD.Inventors: Mitsuyasu NAKAJIMA, Keiichi Sakurai, Takashi Yamaya, Yuki Yoshihama
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Patent number: 8009929Abstract: A digital camera includes a tri-axial acceleration sensor. The CPU determines a direction of the camera at a time of image capturing, on the basis of a gravitational direction which is detected by the tri-axial acceleration sensor, calculates a parameter for projection-correcting a captured image in a predetermined direction on the basis of the direction of the camera, and corrects a distortion of the captured image by using the parameter.Type: GrantFiled: July 25, 2006Date of Patent: August 30, 2011Assignee: Casio Computer Co., Ltd.Inventor: Keiichi Sakurai
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Publication number: 20110074782Abstract: An image capturing unit 22 of an apparatus captures an image of a viewer 11 viewing a display image displayed in a display unit 21. The apparatus detects a face of the viewer 11 from the captured image. The apparatus determines a position of the face thus detected and a position of a light source 12, respectively. The apparatus detects a reflection area 61 from the display image (including a clock object 31) based on the positions of the face and the light source. Subsequently, the apparatus executes, on data of the display image, the image processing of adding a reflection effect to the reflection area. Then, the apparatus causes the display unit 21 to display the display image based on the data on which the image processing has been executed.Type: ApplicationFiled: September 22, 2010Publication date: March 31, 2011Applicant: CASIO COMPUTER CO., LTD.Inventors: Takayuki HIROTANI, Keiichi Sakurai
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Patent number: 7791655Abstract: A photographing unit photographs an object “n” times respectively with exposure times T1(1) to T1(n) to generate “n” sheets of images of the same object per an exposure time T1, where “n” is a whole number and the exposure times T1(1) to T1(n) are obtained by dividing the exposure time T1 by the whole number of “n”, a displacement correcting unit (32a, 32b) calculates a correction value for correcting displacement of the images, and a limb-darkening compensating unit (32d) corrects a position of a limb-darkening characteristic component of each of the images, using the correction value. Meanwhile, the limb-darkening characteristic components of the images whose positions have been corrected are combined to generate a limb-darkening characteristic component for compensation. Limb darkening in a combined image is compensated for, using the limb-darkening characteristic component for compensation, whereby a time required for performing a limb-darkening compensating process is decreased.Type: GrantFiled: September 5, 2007Date of Patent: September 7, 2010Assignee: Casio Computer Co., Ltd.Inventors: Tetsuji Makino, Keiichi Sakurai
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Patent number: 7760962Abstract: A digital camera shoots a document plural times from different directions to obtain a plurality of images. An image processing device included in the digital camera corrects the keystone distortion of each image to generate an image which seems as if the document were shot from in front of it. The image processing device synthesizes the images by addition-averaging the pixel values of each pixel in the plurality of corrected images. Even if captured images are illuminated by glare from a light because a document made of glossy paper is shot, the influence of the glare is reduced by addition-averaging the pixel values of each pixel in the plurality of images.Type: GrantFiled: March 28, 2006Date of Patent: July 20, 2010Assignee: Casio Computer Co., Ltd.Inventors: Masao Sambongi, Keiichi Sakurai
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Publication number: 20100053410Abstract: An image processing apparatus includes: a line segment detecting unit configured to detect vertical line segments and horizontal line segments in an image; a facing-lines candidate generating unit configured to generate vertical and horizontal facing-lines candidates from the vertical and horizontal line segments, the vertical and horizontal facing-lines candidates being candidates for pairs of facing lines configuring quadrangle areas in the image; a rectangle candidate generating unit configured to generate a plurality of pairs of one of the vertical facing-lines candidates and one of the horizontal facing-lines candidates, and to generate the quadrangle areas as rectangle candidates; and a calculating unit configured to calculate likelihood of each of the rectangle candidates based on a relationship between line segments constituting the vertical facing-lines candidates and the horizontal facing-lines candidates and the rectangle candidates.Type: ApplicationFiled: August 18, 2009Publication date: March 4, 2010Applicant: Casio Computer Co., Ltd.Inventors: Masakazu YOSHII, Keiichi Sakurai, Ryohei Yamamoto
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Patent number: 7643701Abstract: A document camera (1) detects a figure of a known shape on a stage (13) and acquires the coordinates of the figure, and acquires image processing area and projection correction parameter. The document camera (1) extracts image data of the image processing area from image data acquired by shooting the stage (13) and an original (4), and performs projection correction on the image data using the projection correction parameter. Further, the document camera (1) performs rotation correction on image data undergone projection correction. Furthermore, the document camera (1) performs zoom correction on image data undergone rotation correction, and generates output input image.Type: GrantFiled: August 31, 2005Date of Patent: January 5, 2010Assignee: Casio Computer Co., Ltd.Inventor: Keiichi Sakurai
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Patent number: 7619663Abstract: A digital camera acquires the image of an original including an original from a shot image acquired by shooting. The digital camera reduces the image of the original and corrects distortion of the reduced image which is originated from the characteristic of a lens. As the digital camera performs distortion correction on the reduced image, the number of arithmetic operations in distortion correction is reduced, making distortion correction simpler. The digital camera acquires a rectangle defined by the contour of the original, extracts the image of the original to acquire an original image before reduction, and acquires an associated projection-transformed image by affine transformation. The digital camera acquires pixel positions of the original image using an affine parameter, and acquires pixel positions of the image before distortion correction using a relational expression of distortion correction performed on the reduced image.Type: GrantFiled: March 17, 2005Date of Patent: November 17, 2009Assignee: Casio Computer Co., Ltd.Inventors: Keiichi Sakurai, Tetsuji Makino