PatentDOI
System and method for performing a three-dimensional virtual examination of objects, such as internal organs
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TLDR
In this paper, a volume visualization technique for generating a 3D visualization image of an internal organ using volume visualization techniques is presented. But this technique is not suitable for the visualization of complex 3D objects.Abstract:
Methods for generating a three-dimensional visualization image of an object, such as an internal organ, using volume visualization techniques are provided. The techniques include a multi-scan imaging method; a multi-resolution imaging method; and a method for generating a skeleton of a complex three dimension object. The applications include virtual cystoscopy, virtual laryngoscopy, virtual angiography, among others.read more
Citations
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Imaging method and device for the cardiovascular system
Leonardo Forzoni,Costi Magda +1 more
TL;DR: In this paper, a volumetric image comprising scan planes adjacent to each other of a periodically moving object is acquired, and the method provides the following further steps: generating and displaying a virtual endo-navigation three-dimensional model by segmenting and reconstructing said volumeetric image, wherein the point of view is movable along at least one path, for determining plaques, stenoses, strictures and/or for analyzing moving structures inside the vessel such as valve leaflets.
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Object region extraction system, method and program
TL;DR: In this article, an object region extraction system comprises: an effectiveness evaluation quantity acquisition means for acquiring an evaluation quantity which increases (or decreases) with the coming closer to a right angle of an angle made by two back projections selected from back projections of one point of an object, wherein said back projections are crossing each other at a position in 3D space and obtained from respective images, which are including said one point and captured by respective ones of m-number of image acquisition means (m: a plural number).
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Method of and system for image processing
TL;DR: In this paper, a method of correlating a representation of a body to a 3D representation of the body is presented, where a representation (such as a 2D image) is acquired and a fitness function is generated for it, which is then compared to the fitness function to generate measures of fit for each set of 3D position and orientation values.
References
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Image-directed robotic system for precise robotic surgery including redundant consistency checking
Edward Glassman,William A. Hanson,Peter Kazanzides,B.D. Mittelstadt,Bela Musits,H.A. Paul,Russell H. Taylor +6 more
TL;DR: In this article, a robotic surgical system with a multiple degree of freedom manipulator arm and a surgical tool is presented, where the manipulator is coupled to a controller for controllably positioning the surgical tool within a 3D coordinate system.
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Method and system for producing interactive three-dimensional renderings of selected body organs having hollow lumens to enable simulated movement through the lumen
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Proceedings ArticleDOI
Virtual voyage: interactive navigation in the human colon
TL;DR: This work presents an interactive virtual colonoscopy method, which uses a physicallybased camera control model and a hardware-assisted visibility algorithm that culls invisible regions based on their visibility through a chain of portals, thus providing interactive rendering speed.
Patent
Automatic analysis in virtual endoscopy
David J. Vining,Gordon W. Hunt,David K. Ahn,David R. Stelts,Yaorong Ge,Paul F. Hemler,Tiffany W. Salido +6 more
TL;DR: In this paper, a computer system and a computer-implemented method are provided for interactively displaying a 3D rendering of a structure having a lumen and for indicating regions of abnormal wall structure.
Journal ArticleDOI
Penalized-distance volumetric skeleton algorithm
TL;DR: A refined general definition of a skeleton is introduced that is based on a penalized distance function and that cannot create any of the degenerate cases of the earlier CEASAR and TEASAR algorithms.