Methods of displaying volumetric 3D images
First Claim
1. Method of using a volumetric 3D display to display 3D data defined in a continuous space in order to display both physiological and psychological depth cues and a background image capable of infinite depth said volumetric 3D display being a type of display that displays 3D images in a display volume in real 3D space, the method including steps of:
- (1) defining a skewed space and a 2D image plane, said skewed space being a 3D space with a skewed coordinate system, said 2D image plane and at least part of said skewed space being inside said display volume, said skewed coordinate presenting an orthogonal 3D space with skewed dimensions such that unit length on one end of said skewed space appears longer than a unit length on the other end of said skewed s pace, thereby providing, additional psychological depth cues;
(2) defining a virtual space with a 3D virtual coordinate system inside said 2D image plane, said 3D virtual coordinate system and said skewed coordinate system connecting at said 2D image plane, thereby extending psychological depth cues from said skewed space into said 2D image plane;
(3) mapping the coordinate system of a part of said continuous space to said skewed coordinate system of said skewed space, naming this part of said continuous space as the first part of said continuous space;
(4) mapping the coordinate system of the remaining part of said continuous space to said virtual 3D coordinate system of said virtual space in said 2D image plane;
(5) displaying the part of said 3D data located within the first part of said continuous space in said skewed space according to the mapping of coordinate systems between said first part of said continuous space and said skewed space;
(6) displaying the part of said 3D data located within the remaining part of the continuous space as perspective images in said 2D image plane according to the mapping of coordinate systems between said remaining part of said continuous space and said virtual space.
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Abstract
This invention describes methods of displaying both physiological and psychological depth cues in a volumetric image display. This added psychological visual depth can display a background image of infinite depth. The basic concept is to combine a skewed coordinate system with a 2D image plane and display the V3D object as a V3D image according to the skewed 3D coordinates if the object falls in the physical 3D space, but display the object as a 2D perspective image if it falls beyond the 3D space into the 2D plane'"'"'s virtual space.
31 Citations
10 Claims
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1. Method of using a volumetric 3D display to display 3D data defined in a continuous space in order to display both physiological and psychological depth cues and a background image capable of infinite depth said volumetric 3D display being a type of display that displays 3D images in a display volume in real 3D space, the method including steps of:
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(1) defining a skewed space and a 2D image plane, said skewed space being a 3D space with a skewed coordinate system, said 2D image plane and at least part of said skewed space being inside said display volume, said skewed coordinate presenting an orthogonal 3D space with skewed dimensions such that unit length on one end of said skewed space appears longer than a unit length on the other end of said skewed s pace, thereby providing, additional psychological depth cues; (2) defining a virtual space with a 3D virtual coordinate system inside said 2D image plane, said 3D virtual coordinate system and said skewed coordinate system connecting at said 2D image plane, thereby extending psychological depth cues from said skewed space into said 2D image plane; (3) mapping the coordinate system of a part of said continuous space to said skewed coordinate system of said skewed space, naming this part of said continuous space as the first part of said continuous space; (4) mapping the coordinate system of the remaining part of said continuous space to said virtual 3D coordinate system of said virtual space in said 2D image plane; (5) displaying the part of said 3D data located within the first part of said continuous space in said skewed space according to the mapping of coordinate systems between said first part of said continuous space and said skewed space; (6) displaying the part of said 3D data located within the remaining part of the continuous space as perspective images in said 2D image plane according to the mapping of coordinate systems between said remaining part of said continuous space and said virtual space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Method of using a volumetric 3D display to display 3D data defined in a continuous space in order to display both physiological and psychological depth cues and a background image capable of infinite depth, said volumetric 3D display being a type of display that displays 3D images in a display volume in real 3D space, the method including:
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combining a skewed coordinate system with a 2D image plane in said display volume, said skewed coordinate system presenting an orthogonal 3D space with skewed dimensions such that a unit length on one end of a physical 3D space appears longer than a unit length on the other end of said physical 3D space, thereby providing additional psychological depth cues, said 2D image plane displaying images according to a virtual 3D coordinate system, said virtual 3D coordinate system and said skewed coordinate system connecting at said 2D image plane, thereby extending psychological depth cues from said physical space into said 2D image plane; displaying a volumetric 3D object as a volumetric 3D image according to said skewed coordinates if the object falls in said physical 3D space, but displaying the object as a 2D perspective image according to said virtual 3D coordinates on said 2D image plane if the object falls beyond said physical 3D space.
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Specification