A block transform coder for arbitrarily shaped image segments

Author

Chen, Homer H. ; Civanlar, M. Reha ; Haskell, Barry G.

Author_Institution

Dept. of Visual Commun. Res., AT&T Bell Labs., Holmdel, NJ, USA

Volume

1

fYear

1994

fDate

13-16 Nov 1994

Firstpage

85

Abstract

This paper describes a method for coding arbitrarily shaped image segments. The method uses an iterative technique based on the theory of successive projection onto convex sets to determine the best transform coefficients. It uses block transforms with frequency domain region-zeroing and space domain region-enforcing operations for effective coding of image segments of arbitrary shape. A major strength of this method is that it can be implemented in real-time using existing codec hardware at an insignificant additional cost

Keywords

image coding; image segmentation; iterative methods; transform coding; arbitrarily shaped image segments; block transform coder; codec hardware; frequency domain region-zeroing; image coding; iterative technique; real-time implementation; space domain region-enforcing operations; successive projection onto convex sets; transform coefficients; Codecs; Discrete transforms; Hardware; Image coding; Image representation; Image segmentation; Karhunen-Loeve transforms; Shape; Transform coding; Visual communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference

Conference_Location

Austin, TX

Print_ISBN

0-8186-6952-7

Type

conf

DOI

10.1109/ICIP.1994.413280

Filename

413280