05150209 is referenced by 103 patents and cites 9 patents.

A method and apparatus for encoding interframe error data in an image transmission system, and in particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, employ hierarchical entropy coded lattice threshold quantization to increase the data compression of the images being transmitted. The method and apparatus decimate an interframe predicted image data and an uncoded current image data, and apply hierarchical entropy coded lattice threshold quantization encoding to the resulting pyramid data structures. Lossy coding is applied on a level-by-level basis for generating the encoded data representation of the image difference between the predicted image data and the uncoded original image. The method and apparatus are applicable to systems transmitting a sequence of image frames (or other pattern data, such as speech) both with and without motion compensation.

Title
Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression
Application Number
522602
Publication Number
5150209
Application Date
May 10, 1991
Publication Date
September 22, 1992
Inventor
Edmund Thompson
Burlington
MA, US
Xiancheng Yuan
Bedford
MA, US
Bernd Girod
Boston
MA, US
Jeffrey Bernstein
Marblehead
MA, US
Richard L Baker
Belmont
MA, US
Agent
Hale and Dorr
Assignee
PictureTel Corporation
MA, US
IPC
H04N 7/12
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