A 2-D integer cosine transform chip set and its applications

Author

Cham, Wai-Kuen ; Choy, Chiu-Sing ; Lam, Wai-kit

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Volume

38

Issue

2

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

43

Lastpage

47

Abstract

An integer cosine transform denoted ICT (10,9,6,2,9,3) has been shown to be a promising alternative discrete cosine transform (DCT) for its implementation simplicity, close performance, and compatibility to the DCT. The authors describe a hardware realization of the 2D-ICT (10,9,6,2,9,3) using two custom designed chips, referred to as the ICT chip and a data sequencer chip. Both chips were implemented on a 3-μm gate array with 2800 gates. The chip set can compute 2D order-8 ICT in less than 19 μs. The speed can be even faster in inverse transform if high-sequence coefficients are truncated. An image processing unit based on this chip set has also been developed which is useful in image archiving systems such as electronic albums

Keywords

application specific integrated circuits; computerised picture processing; data compression; digital signal processing chips; transforms; 2-D integer cosine transform chip set; 2D-ICT (10,9,6,2,9,3); 3 micron; ICT chip; custom designed chips; data sequencer chip; electronic albums; gate array; image archiving systems; image compression; image processing unit; speed; Discrete cosine transforms; Discrete transforms; Hardware; Image coding; Image processing; Kernel; Large scale integration; Low pass filters; Transform coding; Wiring;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.142857

Filename

142857