SURGICAL NAVIGATION WITH STEREOVISION AND ASSOCIATED METHODS

摘要

A surgical guidance system has two cameras to provide stereo image stream of a surgical field; and a stereo viewer. The system has a 3D surface extraction module that generates a first 3D model of the surgical field from the stereo image streams; a registration module for co-registering annotating data with the first 3D model; and a stereo image enhancer for graphically overlaying at least part of the annotating data onto the stereo image stream to form an enhanced stereo image stream for display, where the enhanced stereo stream enhances a surgeon's perception of the surgical field. The registration module has an alignment refiner to adjust registration of the annotating data with the 3D model based upon matching of features within the 3D model and features within the annotating data; and in an embodiment, a deformation modeler to deform the annotating data based upon a determined tissue deformation.

主权项

1. A system for generating a photographic image of a surgical field, comprising:
a stereo image capture device for capturing a stereo image stream from two cameras imaging the surgical field; a stereo viewer for displaying the stereo image stream to a surgeon; a stereo image to 3D surface extraction module, implemented as machine readable instructions stored in memory of a computer, that is capable of, when the instructions are executed by a processor of the computer, generating a first 3D model of the surgical field from the stereo image streams; a registration module, implemented as machine readable instructions stored in the memory, that is capable of, when the instructions are executed by the processor, co-registering annotating data with the first 3D model; and a stereo image enhancer, implemented as machine readable instructions stored in the memory, that is capable of, when the instructions are executed by the processor, graphically overlaying at least part of the annotating data onto the stereo image stream to form an enhanced stereo image stream for display by the stereo viewer, wherein the enhanced stereo stream enhances the surgeon's perception of the surgical field.