Display with rangefinder

Details Display with rangefinder Display with rangefinder

1991-12-20

1993-10-12

Weldon, Ulysses

Computer graphics processing and selective visual display system

Image superposition by optical means

Plural image superposition

358 88, 345139, G09G 128

Patent

active

052529509

ABSTRACT:
An apparatus for displaying images comprising a display capable of displaying rendered imagery. The apparatus comprises a rangefinder coupled to the display which is capable of determining the distance from a viewer to the display. The apparatus further comprises a means for displaying an image upon the display, the image having a perspective such that the display is a projection plane of a perspective volume. A distance from the projection plane to a center of the projection is proportional to the distance from the display to the viewer, and the distance from the center of the projection to the projection plane is dynamically modifiable depending on the distance detected by the rangefinder. The display may be transparent so that a background scene may be visible with the rendered image superimposed upon it.

REFERENCES:
patent: 4897715 (1990-01-01), Beamen
patent: 5124821 (1992-06-01), Antier et al.
Wright, Jeff, "Altered States" picture dated 1989.
Foley, James D., et al., Computer Graphics Principles and Practice, Second Edition, 1990, Chapter 6, pp. 229-283.

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