3 results about "Virtual endoscopy" patented technology

The application provides a virtual endoscopy imaging method, system, device and medium. The method comprises: acquiring multi-energy level imaging body data of a target object; performing base substance decomposition processing on the multi-energy level imaging body data based on a preset base substance combination to generate base substance images corresponding to each base substance; reconstructing a luminal three-dimensional structure model representing a luminal region of the target object based on the multi-energy level imaging body data; performing lesion detection according to the base substance images and the multi-energy level imaging body data to obtain lesion information and associating the lesion information with the luminal three-dimensional structure model; performing endoscopy in the luminal three-dimensional structure model through a virtual endoscope and generating visualization information of a check region of the virtual endoscope in the check region; wherein the visualization information comprises the check region and / or lesion information in the check region. The application can intuitively observe the lesion position and component information in a dynamic check process.

The three-dimensional virtual endoscopy rendering of the lumen of a tubular structure is based on non-spectral and spectral volume imaging data. The three-dimensional virtual endoscopy rendering includes 2D images of the lumen of the tubular structure from the viewpoint of a virtual camera of a virtual endoscope passing through the lumen. In one case, the three-dimensional virtual endoscopy rendering is similar to the view provided by a physical endoscope camera inserted into and positioned at the actual tubular structure. The non-spectral volume image data is used to determine the opacity and shading of the three-dimensional virtual endoscopy rendering. The spectral volume image data is used to visually encode the three-dimensional virtual endoscopy rendering to visually distinguish the inner wall of the tubular structure and the structures of interest on the wall.

A three-dimensional virtual endoscopy rendering of a lumen of a tubular structure is based on both non-spectral and spectral volumetric imaging data. The three-dimensional virtual endoscopy rendering includes a 2-D image of a lumen of the tubular structure from a viewpoint of a virtual camera of a virtual endoscope passing through the lumen. In one instance, the three-dimensional virtual endoscopy rendering is similar to the view which is provided by a physical endoscopic video camera inserted into the actual tubular structure and positioned at that location. The non-spectral volumetric image data is used to determine an opacity and shading of the three-dimensional virtual endoscopy rendering. The spectral volumetric image data is used to visually encode the three-dimensional virtual endoscopy rendering to visually distinguish an inner wall of the tubular structure and structure of interest on the wall.