Ricoh Company, Ltd.

Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Kagehiro Nagao

Shin Aoki

Naoki Kikuchi

Jun Yoshida

Soichiro Yokota

Jun Kishiwada

Hiroaki Ito

Naohide Uchida

Toshihiko Terada

Naoki Motohashi

Kiichiroh Saitoh

Junichiro Asaba

A three-dimensional shape generation apparatus includes circuitry configured to generate three-dimensional shape information indicating a three-dimensional shape corresponding to a three-dimensional point group based on multiple sets of model shape information set by a model setting operation and point-group information indicating the three-dimensional point group. The model setting operation received at a reception screen sets the multiple sets of model shape information each indicating a three-dimensional model shape.

Three-dimensional shape generation apparatus, three-dimensional shape generation system, three-dimensional shape generation method, and non-transitory recording medium

A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.

Calibration method and measurement tool

In an apparatus for monitoring surroundings of a vehicle carrying the apparatus, a corresponding-point displacement calculator sets a search region for corresponding points in a plurality of images of an object captured simultaneously from different positions and calculate a displacement value between the corresponding points. A search region modifier modifies the search region if a number of corresponding-point displacement values acquired by the corresponding-point displacement calculator within a predetermined period of time is less than a predetermined threshold. An image displacement calculator calculates an image displacement value that is an amount of displacement between the plurality of images based on the corresponding-point displacement values acquired within the predetermined period of time if the number of corresponding-point displacement values acquired by the corresponding-point displacement calculator within the predetermined period of time is equal to or greater than the predetermined threshold. A displacement corrector corrects for an image displacement based on the image displacement value.

Apparatus and method for monitoring surroundings of vehicle

A vicinity supervising device of a vehicle includes an image capturing unit capturing a plurality of images at different locations; a distance acquiring unit acquiring a distance up to the object detected by transmitting and receiving probing waves from/to the object; a first offset calculation unit calculating a first parallax offset value based on the plurality of images and the distance up to the object; and a second offset calculation unit calculating a second parallax offset value based on a change in a parallax in a predetermined period at an identical point among the plurality of images and a travel distance of the vehicle travelling in a predetermined period; and a parallax correction unit correcting the parallax using the first parallax offset value under a condition where a difference between the first parallax offset value and the second parallax offset value is less than or equal to a threshold.

Vicinity supervising device and vicinity supervising method of vehicle

A calibration method is for a photographic device that photographs an object through a transparent body. The calibration method includes: acquiring a first photographic image by photographing the object without interposing the transparent body; acquiring a second photographic image by photographing the object through the transparent body; calculating an absolute positional deviation that indicates a deviation in coordinates of an image of the object due to the transparent body based on coordinates of an image of the object on the first photographic image and coordinates of an image of the object on the second photographic image; calculating a correction parameter for calibrating the absolute positional deviation; and storing the correction parameter in the photographic device.

Calibration method, calibration device, and computer program product

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Kanagawa, Japan

Kagehiro Nagao