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IMAGING CONTROL TO FACILITATE TRACKING OBJECTS AND/OR PERFORM REAL-TIME INTERVENTION

机译:影像控制有助于追踪对象和/或进行实时干预

摘要

A method includes acquiring image data from for a given time step. The image data represents at least one of an instrument and a target within an image space that includes patient anatomy. A given belief of system state is estimated to include an estimate of instrument state and target state determined from corresponding measurement and motion models computed based on the acquired image data and control input parameters for the given time step. An expected belief of system state is estimated for a subsequent time step based on the estimated given belief of system state and based on the measurement models and the motion models computed over a plurality of different control inputs parameters. An information metric is computed for each of the expected beliefs of system state and control input parameters are selected for the subsequent time step based on the computed information metrics.
机译:一种方法包括在给定的时间步长中获取图像数据。图像数据表示包括患者解剖结构的图像空间内的仪器和目标中的至少一个。估计给定的系统状态信念,包括对仪器状态和目标状态的估计,该估计是根据给定时间步长根据获取的图像数据和控制输入参数计算出的相应测量和运动模型确定的。基于估计的系统状态的给定置信度,以及基于在多个不同的控制输入参数上计算出的测量模型和运动模型,为随后的时间步长估计系统状态的预期信念。为系统状态的每个预期信念计算一个信息度量,并根据计算出的信息度量为后续时间步选择控制输入参数。

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