Unified Approach for L/M-fold Resizing of Compressed Images Using Lapped Transforms

Author

Lee, Chang Woo

Author_Institution

Sch. of Inf., Commun. & Electron. Eng., Catholic Univ. of Korea, Bucheon

Volume

1

fYear

2006

fDate

38869

Firstpage

79

Lastpage

82

Abstract

We propose two methods which represent various approaches for L/M-fold image resizing in the DCT domain and present an L/M-fold resizing method using lapped transforms. Among the lapped transforms, the LiftLT is selected, since it is one of lapped transforms with fast and VLSI-friendly implementations. The analysis and computer simulations show that the proposed method provides superior performance, both objectively and subjectively, as compared to the conventional conversion method in the DCT domain

Keywords

VLSI; data compression; discrete cosine transforms; image coding; DCT domain; L-M-fold image resizing method; VLSI-friendly implementation; discrete cosine transform; image compression; lapped transform; unified approach; Bit rate; Computer simulation; Digital images; Discrete cosine transforms; Frequency conversion; Image coding; Image converters; PSNR; Transform coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems Proceedings, 2006 International Conference on

Conference_Location

Guilin

Print_ISBN

0-7803-9584-0

Electronic_ISBN

0-7803-9585-9

Type

conf

DOI

10.1109/ICCCAS.2006.284590

Filename

4063834