Title :
Evaluation of design alternatives for the 2-D-discrete wavelet transform
Author :
Zervas, Nikos D. ; Anagnostopoulos, Giorgos P. ; Spiliotopoulos, Vassilis ; Andreopoulos, Yiannis ; Goutis, Costas E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Patras Univ., Greece
fDate :
12/1/2001 12:00:00 AM
Abstract :
In this paper, the three main hardware architectures for the 2-D discrete wavelet transform (2-D-DWT) are reviewed. Also, optimization techniques applicable to all three architectures are described. The main contribution of this work is the quantitative comparison among these design alternatives for the 2-D-DWT. The comparison is performed in terms of memory requirements, throughput, and energy dissipation, and is based on a theoretical analysis of the alternative architectures and schedules. Memory requirements, throughput, and energy are expressed by analytical equations with parameters from both the 2-D-DWT algorithm and the implementation platform. The parameterized equations enable the early but efficient exploration of the various tradeoffs related to the selection to the one or the other architecture
Keywords :
VLSI; circuit optimisation; digital filters; discrete wavelet transforms; image processing; parallel architectures; 2D-DWT; 2D-discrete wavelet transform; design alternatives; energy dissipation; filters; hardware architectures; memory requirements; optimization techniques; parameterized equations; schedules; throughput; Algorithm design and analysis; Discrete wavelet transforms; Energy dissipation; Equations; Filters; Hardware; Performance analysis; Throughput; Very large scale integration; Wavelet transforms;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
