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首页> 外文会议>EUSIPCO 2007;European signal processing conference >A NOVEL IMAGE CODING SCHEMEBY USING TWO-CHANNEL COMPLEX-VALUED FILTER BANKS
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A NOVEL IMAGE CODING SCHEMEBY USING TWO-CHANNEL COMPLEX-VALUED FILTER BANKS

机译：使用两个通道的复合值滤波器组的新图像编码方案

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摘要

A novel image coding scheme by using two-channel complexvaluedrnfilter banks (CFBs) is proposed in this paper. Uprnto now, most of the image coding schemes have used realvaluedrnfilter banks (RFBs). In other words, there are no efficientrnimage coding framework using CFBs since the amountrnof samples transformed by CFBs is twice as much as that ofrnRFBs. However, CFBs are expected to have better frequencyrncharacteristics than RFBs, since CFBs have more design parametersrnthan that of RFBs. Thus, if the problem is solved,rnCFBs could be efficient for image coding. In this paper, arnnew algorithm which can preserve the amount of informationrnwhen CFBs are applied to image coding is introduced. It isrnshown that the proposed image coding scheme using CFBsrnis superior to conventional real-valued wavelet-based imagerncoding.
机译：提出了一种使用两通道复值滤波器组（CFB）的图像编码方案。迄今为止，大多数图像编码方案都使用了实值滤波器组（RFB）。换句话说，由于CFB转换的数量样本是rnRFB的两倍，因此没有使用CFB的有效图像编码框架。但是，由于CFB具有比RFB更多的设计参数，因此CFB具有比RFB更好的频率特性。因此，如果问题得以解决，rnCFB可能对于图像编码是有效的。本文介绍了一种在将CFB应用于图像编码时可以保留信息量的arnnew算法。结果表明，所提出的使用CFBsrnis的图像编码方案优于传统的基于实值的小波图像编码。

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  • 来源
  • 会议地点 Poznan(PL);Poznan(PL)
  • 作者

    Seisuke Kyochi; Yuichi Tanaka; Masaaki Ikehara;

  • 作者单位

    Department of Electronics and Electrical Engineering, Keio Universityrn3-14-1 Hiyoshi Kohoku, Yokohama Kanagawa 223-8522, JapanrnPhone: +81-45-566-1463 Email: kyochi@tkhm.elec.keio.ac.jp;

    rnDepartment of Electronics and Electrical Engineering, Keio Universityrn3-14-1 Hiyoshi Kohoku, Yokohama Kanagawa 223-8522, JapanrnPhone: +81-45-566-1463;

    rnDepartment of Electronics and Electrical Engineering, Keio Universityrn3-14-1 Hiyoshi Kohoku, Yokohama Kanagawa 223-8522, JapanrnPhone: +81-45-566-1463;

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  • 正文语种 eng
  • 中图分类 通信理论;
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