研究生: |
簡裕峰 |
---|---|
論文名稱: |
高效率二維整數式離散小波轉換晶片之排列架構設計與分析 An Efficient VLSI Architecture Line-Based 2-D Integer DWT :Design and Analysis |
指導教授: | 周懷樸 |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
原子科學院 - 工程與系統科學系 Department of Engineering and System Science |
論文出版年: | 2005 |
畢業學年度: | 93 |
語文別: | 中文 |
論文頁數: | 73 |
中文關鍵詞: | 二維離散小波轉換 、整數式小波轉換 、小波轉換架構 、管線化架構 、影像壓縮標準 、多維解析 |
外文關鍵詞: | 2D-DWT, integer transform, lifting scheme, line-based, JPEG2000, multi-resolution |
相關次數: | 點閱:1 下載:0 |
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本篇論文主要研究目的是設計一個針對二維離散小波轉換晶片,離散小波轉換具有多重解析,可把訊號的頻帶做有效的分離很適合用來做影像的壓縮轉換,本片利用提升式演算法(Lifting Scheme)及整數式小波轉換(integer to integer mapping)來實現運算單元,lifting scheme主要可用來簡化運算過程,而整數式則是可以達到完全反向轉換,降低在設計晶片時有效位數取捨所造成的誤差,在架構上我們使用line based的排程方式可以有效的降低暫存器組的數目及提高硬體的使用效率,而位址產生器我們使用in-place mapping的方式可以更容易的去實現。
除了上述我們使用到的演算法及架構外,為了加快晶片的處理速度,我們修改小波函數中的係數,把原來的乘法器用移位器來取代以提昇晶片的效能。
我們利用硬體描述語言(Verilog Hardware Description Language)來設計此架構,在用台積電所提供的.35製程library及Synopsys所提供的合成軟體去做合成電路,本篇論文測試結果二維離散小波轉換的電路面積為3130μm*3125μm,而時脈最高可以達到285MHz
[1] I.Daubechies and W.Sweldens,“Factoring wavelet transforms into lifting steps,” Journal of Fourier Analysis and Applications , Vol. 4, pp. 247-269, 1996.
[2] JPEG2000 Verification Model 6.0.
[3] A. R. Calderbank, I. Daubechies, W. Sweldens and B. Yeo, ”Wavelet transforms that map integers to integers,” Applied and Computational Harmonic Analysis., Vol.5, no. 3, pp. 332-369, 1998.
[4] Wen-Ta Lee, Wen-Sheng Chiang and Chia-Chun Tsai, “Efficient VLSI Architectures with low hardware cost for discrete wavelet transform,”Institute of Computer, Communication and Control National Taipei University of Technology, 2002.
[5] N. D. Zervas, G. P. Anagnostopoulos, V. Spiliotopoulos, Y. Andreopoulos, and C.E. Goutis, “Evaluation of design alternatives for the 2-D discrete wavelet transform,” IEEE Transactions on Circuits and Systems for Video Technology, vol.11, no.12, December 2001.
[6] M. Vishwanath, R. M. Owens, and M. J. Irwin, “VLSI architectures for the discrete wavelet transform,” IEEE Trans. Circuits Syst.-11, vol. 42, NO. 5, pp. 305-316,MAY 1995.
[7] P. C. Wu and L. G. Chen, “An efficient architecture for two-dimensional discrete wavelet transform,” IEEE Trans. On Circuits and Systems for Video Technology, vol.11, no.4, Apr.2001
[8] C. Chakrabarti and M. Vishwanth, “Efficient Realizations of the Discrete and Continuous Wavelet Transforms : From Single Chip Implementations to Mappings on SIMD Array Computers,” IEEE Trans. Signal Processing, vol. 43, pp. 759-771, Mar 1995.
[9] Z. Guangjun, C. Lizhi and C. Huowang, “A simple 9/7-tap wavelet filter based on lifting scheme,” IEEE Trans. pp. 249-252, 1995.
[10] Sao-Jie Chen and Tao-Wen Chung, “Design and implementation of 2-D discrete wavelet transform VLSI architecture for JPEG2000,” NTU EE thesis, chap.3, 2001
[11] K. Andra, C. Chakrabarti and T. Acharya, “A VLSI architecture for lifting-based forward and inverse wavelet transform,” IEEE Trasactions on signal processing, vol. 50, no. 4, april 2002.
[12] K. Parhi, “VLSI digital signal processing system,” Wiley InterScience, chap.2, 1999.
[13] C.-T. Huang, P.-C. Tseng, and L.-G. Chen, “Efficient VLSI architectures of lifting-based discrete wavelet transform by systematic design method,” in Proceedings of 2002 IEEE International Symposium on Circuits and Systems (ISCAS 2002), Scottsdale, Arizona, May 2002.