04703349 is referenced by 21 patents and cites 9 patents.

A method and apparatus for representing a multi-dimensional, finite extent, information containing signal in a locally sensitive, frequency domain representation employs transforming the digital signal using a Short-Space Fourier transform having overlapping basis functions. The theory and application of the Short-Space Fourier transform provide, in one particular application of picture image transmission, an improved image quality over previously employed block transform coding methods and apparatus. A particularly preferred window function for use in connection with image signal processing is the multi-dimensional sinc function which has the unique advantage of a rectangular bandpass signal in the frequency domain.

Title
Method and apparatus for multi-dimensional signal processing using a Short-Space Fourier transform
Application Number
6/713478
Publication Number
4703349
Application Date
March 19, 1985
Publication Date
October 27, 1987
Inventor
Jeffrey G Bernstein
Lynn
MA, US
Agent
Lahive & Cockfield
Assignee
PictureTel Corporation
MA, US
IPC
G06F 15/332
G06F 7/34
H04N 1/40
H04N 7/12
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