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Motion tracking x-ray ct image processing method and the motion tracking x-ray ct image processing apparatus
Motion tracking x-ray ct image processing method and the motion tracking x-ray ct image processing apparatus
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机译：运动跟踪x射线ct图像处理方法和运动跟踪x射线ct图像处理装置
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摘要
By estimating the motion and CT images simultaneously, it is possible to reduce motion artifacts, and provides a motion follow-up X-ray CT image processing method and an X-ray CT image processing apparatus. The invention relates to an X-ray CT image processing method for performing a statistical estimate at a prior knowledge about the movement and X-ray absorption coefficient of the measured object, it is assumed that the measured object varies smoothly with time comprising the steps of defining a first probability model for the motion and a second probability model (observation model of the projected image of all the time) about the observations (prior knowledge of the measured object of the total time), a first probability of the It comprising the step of performing model and dependent statistical estimates for both the second probability model. As the probability model for performing a statistical estimate from the first, it defines a second probability model for observing the first probability model for the movement of the measured object, by making inferences based on their probabilistic models, and motion We estimate the CT image at the same time.
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