Abstract: A system for registering operating images includes an X-ray imaging machine, a visible-light camera, a rectifier and a computer system. The X-ray imaging machine captures a first X-ray image of the rectifier, and the visible-light camera captures a first visible-light image of the rectifier at the same time. The computer system recognizes the rectifier in the first X-ray image and in the first visible-light image to compute a conversion model between a coordinate system of the X-ray imager and a coordinate system of the visible-light camera. The X-ray imaging machine also captures a second X-ray image of a patient on which a positioning marker is set, and the visible-light camera captures a second visible-light image of the positioning marker. The computer system provides a navigation interface by combining the second X-ray image and the second visible-light image based on the conversion model.

Abstract: A method for identifying and locating at least one nerve in a target region is disclosed. In the method, an image detector is used to scan the target region according to a predicted nerve trend from a nerve identification program and capture 2D cross-sectional images of subregions of the target region, and the nerve identification program is utilized to identify' whether the 2D cross-sectional images are captured of the target nerve. When the nerve identification program identifies the 2D cross-sectional images are the images of the target nerve, a 3D image showing a 3D nerve structure is constructed from the 2D cross-sectional images based on 3D image reconstruction technique.

Abstract: A device for limb detection includes a circular guide means and a carrier. The carrier is provided to carry an image detector and the circular guide means includes a slide mechanism integrated to the carrier. The slide mechanism and the carrier can move back and forth around a horizontal axis passing through the circular guide means such that they are beneficial for the image detector to detect the limb.