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Novel VLSI architecture of 2-D DWT/IDWT for JPEG2000 based on diagonal storage

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4 Author(s)
Xing Qin ; Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China ; Xiao-Lang Yan ; Chong-pong Yang ; Xing Zhao

An efficient VLSI architecture of 2D DWT/IDWT for JPEG2000 is proposed. In this architecture, the memory consists of eight dual port SRAM memories where image data is diagonally stored, and a 1D DWT based lifting scheme is implemented using pipeline processing techniques. The 1D DWT core can process 4 sample data in a clock cycle. According to different requirement, this architecture can be implemented with or without an external buffer. Simulation results show that this design is able to perform a 3-level decomposition for a 512×512 grayscale image within 13.3 ms (with an external buffer), or 16.6 ms (without an external buffer) when running at 20 MHz.

Published in:

Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on  (Volume:3 )

Date of Conference:

18-21 Oct. 2004

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