Target tracking device and radiation therapy apparatus
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United States of America Patent
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Jun 24, 2014
Grant Date -
Feb 16, 2012
app pub date -
Feb 8, 2010
filing date -
Feb 8, 2010
priority date (Note) -
Withdrawn
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Abstract
A target tracking device for tracking a moving target, based on X-ray fluoroscopic images from a plurality of directions, the target tracking device may include a plurality of X-ray fluoroscopic devices, an image processing unit, and a position determining unit. The X-ray fluoroscopic devices obtain a plurality of images from a plurality of directions, each of the images in a given direction having a different sensitivity. The image processing unit identifies a position of a target image based on pattern matching between the plurality of images and an image of the target. The position determining unit determines a 3D position of the target based on the position of the target image in the plurality of images from the plurality of directions.
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