Image registration method and device for surgical robot, electronic device and storage medium

An image registration device for a surgical robot, comprising:

• a capturing assembly configured to capture two-dimensional images of a surgical object and determine first guiding information in the two-dimensional images;
• an acquisition assembly configured to acquire three-dimensional images of the surgical object and determine second guiding information in the three-dimensional images;
• and
• an information processing assembly configured to:
• calculate first pose information according to the first guiding information and the second guiding information;
• adjust the three-dimensional image according to the first pose information, and acquire a digitally reconstructed two-dimensional image in the adjusted three-dimensional image;
• and
• calculate similarity between the two-dimensional image and the digitally reconstructed two-dimensional image;
• wherein,
• when the similarity meets a preset condition, project preoperative planning information onto the two-dimensional image according to the first pose information;
• and
• when the similarity does not meet the preset condition, update the first pose information to obtain second pose information, and adjust the three-dimensional image according to the second pose information.