Follow-up visit analysis system and method based on novel coronavirus pneumonia CT image

The embodiment of the invention provides a follow-up visit analysis system and method based on a novel coronavirus pneumonia CT image, and the system comprises: an extraction module which is used forextracting first skeleton point cloud data of a lung CT image before follow-up visit and extracting second skeleton point cloud data of a lung CT image after follow-up visit; a registration module which is used for registering the first skeleton point cloud data and the second skeleton point cloud data to obtain a registration error; and a matching module which is used for matching pneumonia lesions in the lung CT image before follow-up visit and the lung CT image after follow-up visit based on the registration error. According to the embodiment of the invention, the characteristic of small bone change characteristics is utilized, matching is carried out by taking the bone as a reference, and the three-dimensional point cloud rigid registration method is combined, so that errors caused bylung deformation can be ov