3-Dimensional model composed against textured midground image an

Details 3-Dimensional model composed against textured midground image an 3-Dimensional model composed against textured midground image an

1996-07-19

1997-12-02

Fetting, Anton W.

G06T 300

Patent

active

056945337

ABSTRACT:
A modelling system for producing a 2-D image of a 3-D scene includes a 3-D computer graphics modeler for producing a view from a selectable viewpoint and in a selectable direction of a 3-D computer graphics model of an object for forming a foreground image, a source of backdrop video data, digital video effects apparatus for manipulating the backdrop video data to produce a background image and a compositor for keying the foreground image into the background image to form the 2-D image. The modelling system is able to produce in real time photo-realistic representations of computer models of objects such as buildings and the like in a real world environment. It is possible to include moving foreground objects in the model for virtual reality applications. It is also possible in real time to move around the model by changing the selected viewpoint and/or direction, the modelling system responding to these changes to produce the appropriate output images. A modified modelling system also provides for the inclusion of mid-ground information.

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