https://scholars.lib.ntu.edu.tw/handle/123456789/115509
標題: | Analysis and VLSI architecture for 1-D and 2-D discrete wavelet transform | 作者: | Huang, Chao-Tsung Tseng, Po-Chih LIANG-GEE CHEN |
關鍵字: | code channel assignment;dynamic adjustment;orthogonal variable spreading factor (OVSF);Universal Mobile Telecommunications System (UMTS);wide-band code-division multiple-access (WCDMA) | 公開日期: | 四月-2005 | 出版社: | Taipei:National Taiwan University Dept Comp Sci Informat Engn | 卷: | 53 | 期: | 4 | 起(迄)頁: | 1575 - 1586 | 來源出版物: | IEEE Transactions on Signal Processing | 摘要: | In this paper, a detailed analysis of very large scale integration (VLSI) architectures for the one-dimensional (1-D) and two-dimensional (2-D) discrete wavelet transform (DWT) is presented in many aspects, and three related architectures are proposed as well. The 1-D DWT and inverse DWT (IDWT) architectures are classified into three categories: convolution-based, lifting-based, and B-spline-based. They are discussed in terms of hardware complexity, critical path, and registers. As for the 2-D DWT, the large amount of the frame memory access and the die area occupied by the embedded internal buffer become the most critical issues. The 2-D DWT architectures are categorized and analyzed by different external memory scan methods. The implementation issues of the internal buffer are also discussed, and some real-life experiments are given to show that the area and power for the internal buffer are highly related to memory technology and working frequency, instead of the required memory size only. Besides the analysis, the B-spline-based IDWT architecture and the overlapped stripe-based scan method are also proposed. Last, we propose a flexible and efficient architecture for a one-level 2-D DWT that exploits many advantages of the presented analysis. © 2005 IEEE. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200611150121834 https://www.scopus.com/inward/record.uri?eid=2-s2.0-17444408839&doi=10.1109%2fTSP.2005.843704&partnerID=40&md5=54b8854c5c9dfc5a61b24c4e72fbf566 |
ISSN: | 1053587X | 其他識別: | 246246/200611150121834 | DOI: | 10.1109/TSP.2005.843704 |
顯示於: | 資訊工程學系 |
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