Image registration method and system for 4D respiratory motion synthesis

The invention provides an image registration method and system for 4D respiratory movement synthesis, and belongs to the technical field of image registration. The registration method comprises the following steps: learning space deformation information between a floating image and a fixed image, and generating an intermediate state; generating a velocity field according to the intermediate state and the floating image, and generating a plurality of deformation fields after solving the velocity field; each deformation field distorts the floating image at different degrees to generate a time frame image of a continuous track so as to achieve the purpose of 4D breathing motion synthesis; according to the method, the sequence image with the motion continuity between the two breathing states can be effectively generated, and the method is of great significance to research on lung image registration or other diseases in the breathing process. 本发明提供了一种4D呼吸运动合成的图像配准方法及系统，属于图像配准技术领域。所述的配准方法，包括：学习浮动图像与固定图像之间的空间形变信息，并生