教師資料查詢 | 類別: 會議論文 | 教師: 江正雄CHIANG JEN-SHIUN (瀏覽個人網頁)

標題:Complexity Reduction for 2-D Integer Lifting-Based Discrete Wavelet Transform Using Symmetric Mask-Based Scheme
學年95
學期1
發表日期2006/08/13
作品名稱Complexity Reduction for 2-D Integer Lifting-Based Discrete Wavelet Transform Using Symmetric Mask-Based Scheme
作品名稱(其他語言)
著者夏至賢; 郭景明; 江正雄
作品所屬單位淡江大學電機工程學系
出版者
會議名稱中華民國影像處理與圖形識別學會(IPPR)95年會員大會暨第十九屆電腦視覺、圖學暨影像處理研討會(CVGIP 2006)=Computer Vision, Graphics and Image Processing Conference
會議地點桃園縣, 臺灣
摘要Wavelet coding has been shown to be better than Discrete Cosine Transform (DCT) in image processing. Moreover, it has the feature of scalability, which is involved in modern video standards. This work presents novel algorithms, namely 2-D Symmetric Mask-based Discrete Wavelet Transform (SMDWT), to improve the critical issue of the 2-D lifting-based discrete wavelet transform (LDWT), and then obtain the benefit of low latency, high-speed operation, and low temporal memory. The SMDWT also has the advantages of high-performance embedded periodic extension boundary treatment, regular signal coding, short critical path, reduced latency time, and independent subband coding processing. Moreover, the 2-D lifting-based DWT performance can also be easily improved by exploiting appropriate parallel method inherently in SMDWT. Comparing with the normal 2-D 5/3 integer lifting-based DWT, the proposed method significantly improves lifting-based latency and complexity in 2-D DWT without degradation in image quality. The algorithm can be applied to real-time image/video applications, such as JPEG 2000, MPEG-4 still texture coding, and Scalable Video Coding (SVC).
關鍵字
語言英文
收錄於
會議性質國內
校內研討會地點
研討會時間20060813~20060815
通訊作者
國別中華民國
公開徵稿Y
出版型式紙本
出處中華民國影像處理與圖形識別學會(IPPR)95年會員大會暨第十九屆電腦視覺、圖學暨影像處理研討會(CVGIP 2006)論文集=Proceedings of Computer Vision, Graphics and Image Processing Conference,8頁
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