Sequential digital image compression

Details Sequential digital image compression Sequential digital image compression

2006-02-28

2006-02-28

Do, Anh Hong (Department: 2627)

Image analysis

Image compression or coding

Shape, icon, or feature-based compression

C382S209000, C382S219000

Reexamination Certificate

active

07006701

ABSTRACT:
A method for compressing a sequence of digital images includes: comparing a reference image of the sequence of digital images to a subsequent image of the sequence of digital images. In response to the reference and subsequent images being the same within a predetermined threshold, 1) a count of a number of images discarded is incremented, 2) the subsequent image is discarded, and 3) the comparing step is repeated with a next subsequent image. In response to the reference and subsequent images not being within the predetermined threshold, 1) the count is initialized and 2) the comparing step is repeated using the subsequent image as the reference image. Rather than comparing whole images corresponding portions of the images can be compared and compressed independently.

REFERENCES:
patent: 4606069 (1986-08-01), Johnsen
patent: 6009204 (1999-12-01), Ahmad
patent: 6097837 (2000-08-01), Cok
patent: 6320378 (2001-11-01), Maier et al.
patent: 2002/0044607 (2002-04-01), Koga et al.
patent: 09-252448 (1997-09-01), None

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