Method for reducing alpha plane bit mask size

Details Method for reducing alpha plane bit mask size Method for reducing alpha plane bit mask size

1996-11-08

1999-11-30

Lee, Thomas D.

Image analysis

Image compression or coding

Contour or chain coding

382199, G06K 934

Patent

active

059956720

ABSTRACT:
A method is provided for reducing the number of data bits required for storage or transmission of the data representing the alpha masks of objects in a single image or frame of a video sequence by jointly encoding overlapping boundaries between two adjacent objects within the image and by avoiding redundant encoding and transmission of an alpha mask which can be reconstructed from other encoded alpha mask data.

REFERENCES:
patent: 4566128 (1986-01-01), Araki
patent: 4845765 (1989-07-01), Juvin et al.
patent: 5666212 (1997-09-01), Gilge

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