05103306 is referenced by 240 patents and cites 6 patents.

Video image compression apparatus and method provides full color, wide field of view, real time imagery having high central resolution. Compression ratios of 1600:1 are achieved thus reducing a required data transmission bandwidth sufficiently to abolish line-of-sight restrictions. Data compression apparatus and method (a) uses a log polar mapper to match the image display to human perceptual resolution to achieve a 25:1 compression ratio with no loss of perceived cues, (b) separates perceptual channels into low resolution, high discrimination level color and high resolution, low discrimination level contrast edges to yield an additional 8:1 compression ratio and (c) applies a data compression technique to yield an additional 8:1 compression ratio. A Gaussian filter is employed in generating a display of the imagery from the compressed data. An operator is provided a capability to rapidly move the high resolution window to any point of interest within the display.

Title
Digital image compression employing a resolution gradient
Application Number
7/500735
Publication Number
5103306
Application Date
March 28, 1990
Publication Date
April 7, 1992
Inventor
John M Evans Jr
Brookfield
CT, US
Carl F R Weiman
Westpoint
CT, US
Agent
Perman & Green
Assignee
Transitions Research Corporation
CT, US
IPC
H04N 7/13
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