Hitachi, Ltd.

Stanley Electric Co., Ltd

Hokkaido University

Hitachi-omron Terminal Solutions, Corporation

National Univ. Corporation Hokkaido Univ.

Takaaki Fujii

Naoki Miyamoto

Kikuo Umegaki

Seishin Takao

Toru Umekawa

Taeko Matsuura

Shinichi Shimizu

Koichi Miyazaki

Makoto Iida

Aki Hiramoto

Kazuhisa Ishi

Norio Katoh

Hiroaki Okuma

Shoko Isono

Through the present invention, three-dimensional coordinates of a tracking object moving in an irradiation object can be calculated from fluoroscopic X-ray images captured and acquired from various angles in a single fluoroscopic X-ray device mounted to a radiation therapy apparatus. The three-dimensional coordinates of the tracking object are calculated on a straight tracking object presence line connecting an X-ray generating device for fluoroscopy and the position in an X-ray plane detector of the tracking object on the fluoroscopic X-ray image acquired by the X-ray generating device for fluoroscopy and the X-ray plane detector, and using line segment information included in a movement region of the tracking object set in advance.

Radiation therapy apparatus configured to track a tracking object moving in an irradiation object

Provided are a moving body tracking apparatus that contributes to shortening treatment time and a radiation therapy system including the moving body tracking apparatus, a program, and a moving body tracking method. The moving body tracking apparatus includes a fluoroscopic apparatus that acquires fluoroscopic images including the targetfrom at least two directions, and the moving body tracking control apparatusA that obtains a position of the targetfrom the fluoroscopic images acquired by the fluoroscopic apparatus. The moving body tracking control apparatusA creates a simulated fluoroscopic image from the CT image including the target, creates a two-dimensional region including the targetfrom the simulated fluoroscopic image as a template, matches each of at least two fluoroscopic images with the template, and obtains a three-dimensional position of the targetfrom a plurality of matching results.

Moving body tracking apparatus, radiation therapy system including the same, program, and moving body tracking method

Proposed are an image reading device and method of a simple configuration which can be easily operated intuitively by the operator, and which enables the accurate reading of a 2D code. With the image reading device which optically reads an image and the image reading method to be executed by the image reading device of the present invention, a first aerial image, which indicates a position over which the image is to be placed, is aerially formed at a focal position of the camera, the image placed in conformity with the first aerial image is read with a camera, and the first aerial image is aerially formed at a focal position of the camera.

Image reading device and method

An optical semiconductor device can have a first lead for an optical semiconductor chip to be mounted on and a second lead for joining to a wire extending from the optical semiconductor chip. The device can be configured to be capable of reducing the possibility of a break of the wire even under a thermal shock and the like. The optical semiconductor device can include a first lead for an optical semiconductor chip to be mounted on, a second lead for joining to a wire (for example, gold wire) extending from the optical semiconductor chip mounted on the first lead; a holder part for supporting the first lead and the second lead at two locations each; a lens part; and a light-transmitting sealing part. The second lead can be separated into two lead pieces with a predetermined gap (&#x2260;0) therebetween as seen in a plan view, or with certain bend configurations as shown in side views, within the inside space of the holder part by which the second lead is supported at two locations.

Optical semiconductor device and method for manufacturing the same

Growing community of inventors

Tokyo, Japan

Takaaki Fujii