Target image rendering with color transparencies
AssigneeHughes Training, Inc.
InventorKenneth R. Brooke
Life of this patent
Estimating the term…
Abstract
An image generation system (50) for generating three independent monochromatic images, using three monochromatic CRT projectors (56, 58, 60). An image generator (52) produces synchronized video signals representing the images, which drive the projectors. The image generator (52) is similar to a conventional image generator for a full color, single channel system, except that the red, green and blue color components are used to define separate monochromatic images which can overlap and still be fully rendered.
Claims8
An image projecting system for projecting three independent monochromatic images using a single color image generation channel, comprising:
- a single full color image generation channel comprising a color image generator for generating red, green and blue video signals nominally representing the color components of a single full color image, and a synchronization signal;
- first, second and third monochrome image projection means each responsive to a given one of said red, green or blue video signals and to said synchronization signal for projecting first, second and third independent monochrome foreground images corresponding to said respective red, green and blue video signals;
- wherein said color image generator further comprises image transparency generation means for rendering transparent, only with respect to operations of said image generator, each image component represented by said red, green, and blue video signals so that each image component may be seen through the others, and wherein color other than that of the foreground image component is made to mix in an additive sense so that superimposed monochromatic images yield composite colors over the overlapped portions of the foreground image component.
A method for projecting three independent monochromatic target images using a single color image generation channel comprising a color image generator for generating first, second and third video signals nominally representing the respective red, green and blue components of a single full color target image, and a synchronization signal, comprising a sequence of the following steps:
- providing first, second and third monochrome image projection means for projecting first, second and third monochrome target images;
- generating said first, second and third video signals to represent independent first, second and third independent target images;
- driving said first, second and third monochrome image projection means with said respective firsts, second and third video signals and said synchronization signals to project said first, second and third monochrome target images corresponding to said respective first, second and third video signals;
- and
- independently controlling the pointing of said first, second and third image projection means so that the respective projected positions of said respective target images are independent of the positions of the other of said projected target images.
Dependencies are inferred from the claim text.