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A cost-effective 8×8 2-D IDCT core processor with folded architecture

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1 Author(s)
Thou-Ho Chen ; Dept. of Electron. Eng., Nan-Tai Inst. of Technol., Tainan, Taiwan

A dedicated cost-effective core processor of the 8×8 two-dimensional (2-D) inverse discrete transform (IDCT) architecture based on the direct realization approach is proposed. The folding scheme is developed to obtain a low gate-count and high throughput. The experimental result shows that the chip's throughput is one pixel per clock cycle with a structure of 78 K transistors, which reveals that the low cost of VLSI implementation is more attractive than most of previously reported chips. With 0.6 μm CMOS, double metal technology, the chip is a standard-cell implementation and requires a core size of 4.4×2.8 mm2, and is able to operate at a clock rate of more than 100 MHz

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:45 ,  Issue: 2 )