Efficient Variable Rate Vector Quantisation using Quadtree Segmentation
Efficient Variable Rate Vector Quantisation using Quadtree Segmentation
Variable rate vector quantization (VQ) using greedy tree growing algorithm has been used in image compression. In previous work, images have been partitioned into fixed size blocks and therefore correlation existing in large variable size blocks can not be exploited. In this paper, a new and efficient variable rate vector quantization scheme using variable block sizes is introduced. Simulation results show that the proposed scheme which is based on variable block size quadtree segmentation can achieve better performance than the fixed block size variable rate VQ.
1636-1639
Yuen, H
3856b554-ec7d-4cae-a993-7503e7b793eb
Li, Y
d53810d0-bc88-491d-b315-9b9273d7bf52
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
April 1995
Yuen, H
3856b554-ec7d-4cae-a993-7503e7b793eb
Li, Y
d53810d0-bc88-491d-b315-9b9273d7bf52
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Yuen, H, Li, Y and Hanzo, L
(1995)
Efficient Variable Rate Vector Quantisation using Quadtree Segmentation.
ISCAS'95.
29 Apr - 03 May 1995.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Variable rate vector quantization (VQ) using greedy tree growing algorithm has been used in image compression. In previous work, images have been partitioned into fixed size blocks and therefore correlation existing in large variable size blocks can not be exploited. In this paper, a new and efficient variable rate vector quantization scheme using variable block sizes is introduced. Simulation results show that the proposed scheme which is based on variable block size quadtree segmentation can achieve better performance than the fixed block size variable rate VQ.
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hy-yl-lh-iscas-1995.pdf
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Published date: April 1995
Additional Information:
Event Dates: 29 April - 3 May 1995 Organisation: ISCAS'95
Venue - Dates:
ISCAS'95, 1995-04-29 - 1995-05-03
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257095
URI: http://eprints.soton.ac.uk/id/eprint/257095
PURE UUID: d49375b4-b31e-4615-9dfb-935c02ad1603
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Date deposited: 12 Dec 2002
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
H Yuen
Author:
Y Li
Author:
L Hanzo
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