Ricoh Company, Ltd.

Takashi Kitaguchi

Norihiko Murata

Yasuhiro Sato

Toshiyuki Furuta

Shin Aoki

Takao Inoue

Tomofumi Kitazawa

Mitsuru Shingyouchi

Etsuko Fujisawa

Hirotoshi Eguchi

Saburo Sasaki

Saburoh Sasaki

Takashi Yano

Takahiro Watanabe

Yutaka Ebi

Katsuyuki Omura

Sugitaka Oteki

Yoshio Watanabe

Makoto Tanaka

Kunikazu Tsuda

Tatsuya Furukawa

Hiroyuki Horiguchi

Toshihiro Tsukagoshi

Tomohiko Beppu

Takefumi Hasegawa

Shuji Motomura

Masayoshi Katoh

Satoshi Otsuki

Atsuo Hashimoto

Akihiro Etoh

Hiromasa Shimizu

Eiki Aono

A projection surface on which a predetermined projection image is projected is provided; a writing surface on which an image can be drawn directly in a superimposing manner with a projection image displayed on the projection surface is provided; and a photography part photographing an image drawn on the writing surface by means of an image-pickup part comprising two-dimensionally-disposed pixels is provided.

Projection-type display device and software program

An image pickup apparatus for picking up an image of a target object in divisions as a plurality of partial images which overlap by a predetermined quantity, is provided with a field angle setting unit configured to set a field angle with which the target object is to be picked up, a display unit for displaying an image, and an image generating unit for generating the partial images to be displayed on the display unit by dividing an image of the target object which is picked up with the field angle.

Image pickup apparatus and image processing method for picking up an image of a target in divisions

An apparatus for detecting a deviation of a camera as a result of a shaking. The apparatus includes a shaking detector which detects a deviation of the camera from shaking based upon an output of at least two pairs of acceleration sensors which are located on different axes of the camera coordinates. A calculator calculates tilt angles of each of the axes from outputs of the pairs of the acceleration sensors.

Apparatus for correction based upon detecting a camera shaking

In image processing method and apparatus of the present invention, image distortions caused by oblique imaging are corrected. A feature point of one of a plurality of partially overlapping images corresponding to a common location of an original image, shared by the plurality of partially overlapping images, is determined. A matched point of one of the other partially overlapping images corresponding to the feature point is determined so that a direction of the object plane is calculated based on the feature point and the matched point. One of the plurality of partially overlapping images is selected as a standard image whose image distortions are to be corrected. A distortion-corrected image is generated on a projection plane by projecting the standard image onto the projection plane based on the direction of the object plane such that image distortions in the standard image are eliminated.

Image processing method and apparatus and computer-readable storage medium using improved distortion correction

An image capturing apparatus for capturing an image of an object. The image capturing apparatus includes a correspondence detector which detects a correspondence of characteristic points of an object based upon captured images of the object. A motion detector detects a motion of the image capturing device. The motion detector includes magnetic sensors. Further, a shape calculator calculates a shape of the object based upon the captured image data, captured attitude information, a translation component, and the correspondence of the characteristic points. The motion detector may further include acceleration sensors and angle speed sensors. A disturbance detector may further be provided to detect a disturbance in acceleration signals output by the acceleration sensors and a disturbance in magnetic signals output by the magnetic sensors. In this situation, if a disturbance arises in the acceleration signals output by the acceleration sensors, an attitude of the image capturing apparatus can be based on signals output by the magnetic sensors and signals output by the angle speed sensors. Similarly, if a disturbance arises in the magnetic signals output by the magnetic sensors, an attitude of the image capturing apparatus can be determined utilizing the acceleration signals output by the acceleration sensors and the angle speed signals output by the angle speed sensors.

Shape measurement system

In image processing method and apparatus of the present invention, an image distortion caused by an oblique image pickup is corrected. A plurality of images of an object on an object plane are input, the plurality of images including at least a pair of partially overlapping first and second images that are taken at two viewpoints, the first and second images sharing a common location on the object plane. A feature point of the first image corresponding to the common location and a matched point of the second image corresponding to the feature point of the first image are determined. A direction of the object plane is calculated based on the feature point and the matched point. A distortion-corrected image on a projection plane, which is parallel to the object plane, is generated by projecting one of the first and second images onto the projection plane based on the direction of the object plane through a perspective projection.

Image processing method and apparatus, digital camera, image processing system and computer readable medium

The image input apparatus comprises the image pickup unit which optically scans a subject and successively acquires partial images of the subject. The relative change detection unit detects an amount of relative change in position or speed of the image pickup unit between a time when a previous partial image was taken and a time when a current partial image is being taken. The an overlapping amount calculating unit calculates an amount of overlap between the previous partial image and the current partial image based upon the amount of relative change in position or speed detected by the relative change detection unit. The image recording determination unit determines whether or not the current partial image is to be recorded based upon the amount of overlap calculated by the overlapping amount calculating unit.

Method of and apparatus for composing a series of partial images into one image based upon a calculated amount of overlap

The present invention provides an image input apparatus into which a three-dimensional image as well as a two-dimensional image can be easily input. This image input apparatus includes an image pick-up unit, a projector unit, and a mover unit. The projector unit projects a predetermined projection light pattern onto an image object, and the image pick-up unit picks up the projection image containing distortions of the projection light pattern. The relative position between the projector unit and the image pick-up unit is fixed. The mover unit moves the image pick-up unit relatively with the projector unit, so that the image pick-up unit can pick up a plurality of projection images at different image pick-up locations.

Image input apparatus using projected light

An apparatus for detecting a deviation of a camera as a result of the camera shaking, for example resulting from a hand of the camera operator shaking. The apparatus includes a shaking detector which detects a deviation of the camera from shaking based upon an output of angular velocity sensors which are located on different axes of the camera coordinates. A calculator calculates tilt angles of each of the coordinate axes from outputs of the angular velocity sensors. The rotation regulator rotates an image pickup device around an optical axis of the camera or an axis in parallel with the optical axis.

An image pickup apparatus for picking up an image of a target object in divisions as a plurality of partial images which overlap by a predetermined quantity, is provided with a display unit for displaying an image, and a partial image generating unit for generating the partial images to be displayed on the display unit by dividing a full image of the target image which is picked up in advance into predetermined sizes using information related to an overlap of the partial images.

Image pickup apparatus and image processing method for picking up an image of a target object in divisions

Detection information for shake is detected by a shake detection unit, predictive shake information is calculated based on the shake detection information, a start position (center) of a correcting operation on an imaging surface of a shake correction unit is determined, and driving of the shake correction unit at the correcting-operation start position is controlled. Accordingly, it is possible to make effective use of a movable range of the shake correction unit for actual hand shake or the like. Thus, a high degree of correction effect can be obtained, so that imaging failures due to hand shake or the like can be remarkably reduced.

Imaging apparatus, and method and device for shake correction in imaging apparatus

A detecting system for detecting a deviation of a camera from shaking has at least two shaking detectors and one correcting device. The first shaking detector detects a camera shaking corresponding to one axis of a camera coordinate system. The second shaking detector detects a camera shaking corresponding to another axis of the camera coordinate system. The correcting device only adjusts a device corresponding to the first shaking detector in an optical system when a maximum or minimum value is detected on the output signal from the second shaking detector.

Growing community of inventors

Kanagawa, Japan

Takashi Kitaguchi