图像重建方法、系统、装置及存储介质

• Format: Patent
• Language: Chinese
• Published: 16.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

本申请实施例公开了一种图像重建方法。所述方法可以包括以下至少一种操作：可以获取一组原始投影数据，以及至少一个先验图像，先验图像与一组原始投影数据相关。可以基于一组原始投影数据，确定目标重建函数中对应于每个先验图像的约束项系数。可以基于一组原始投影数据以及至少一个先验图像，利用所述对应于每个先验图像的约束项系数确定后的目标重建函数，获取对应于原始投影数据的目标重建图像。本申请实施例公开的图像重建方法，可以提高在有限角度下重建图像的图像质量。 The present disclosure relates to systems and methods for medical imaging. The method may include obtain scanning data and at least one prior image of a subject. The method may include determining a restriction factor for each of the at least one prior image based on the scanning data. The restriction factor of the each prior image may relate to a motion of the subject corresponding to the scanning data. The method may include determining an objective function based on the restriction factor. The method may also include reconstructing, using the objective function, a target image of the subject based on the scanning data and the at least one prior image.