Title :
Switched-current implementation of two-dimensional DCT for image processing
Author :
A. Handkiewicz;M. Lukowiak;M. Kropidlowski
Author_Institution :
Fac. of Electr. Eng., Poznan Univ. of Technol., Poland
fDate :
6/24/1905 12:00:00 AM
Abstract :
Switched-current (SI) circuits are suitable to operate on the same chip with digital circuits in low-voltage supply. This property is very important for applications in portable devices like digital cameras. Switched-capacitor implementation of the two-dimensional (2D) discrete cosine transform (DCT) was reported in the literature. In this paper, the design method of a 2D DCT for SI implementation is presented. An experimental chip was fabricated in AMS CMOS 0.8 /spl mu/m technology. The results of testing are reported.
Keywords :
"Discrete cosine transforms","Image processing","Signal processing","Filters","Switching circuits","Two dimensional displays","CMOS image sensors","CMOS technology","Circuit testing","Photodiodes"
Conference_Titel :
ASIC/SOC Conference, 2002. 15th Annual IEEE International
Print_ISBN :
0-7803-7494-0
DOI :
10.1109/ASIC.2002.1158053
