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DCT域中特定几何变换的性质及其应用 被引量：1

The Attributes of Some Geometric Transformations in the Field of Discrete Cosine Transform and Its Application
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摘要 本文定义了两种几何变换：水平旋转，垂直旋转。推导了它们在ＤＣＴ域中的性质，描述了利用推导出的性质直接对压缩形式下的视频数据作水平旋转和垂直旋转的方法。 In this papor.we define two geometric transformations: horizontal mirror and vertical mirror.The attributes of these geometric transformations in the field of DCT(Discrete Cosine Transform)are de-rived,and the methods of horizontal mirror and Vertical mirror use these attributes are discripted,which dealdirectly with digital compressed video image.
作者 韩疆 全春来 李莲治 王岩
机构地区 航天工业总公司二院
出处 《系统工程与电子技术》 EI CSCD 1995年第10期34-40,共7页 Systems Engineering and Electronics
关键词 DCT域 几何变换 图像压缩 图像处理 Multimedia,Discrete cosine transform,Horizontal mirror,Real time video processing,Runlength codeing block,Vertical mirror.
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
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同被引文献45

  • 1Shen Bo, Sethi I K, Bhaskaran V. DCT domain alpha blending [A]. In: Proc. of IEEE International Conference on Image Processing (ICIP98) [C]. Chicago, Illinois, USA, 1998,1 : 857-861.
  • 2Shen Bo, Sethi I K. Direct feature extraction from compressed images[A]. In..Proc. SPIE Storage and Retrieval for Image andVideo Database IV [C], San Jose, California, USA, 1996,2670 :404-414.
  • 3Chitprasert B, Rao K R. Discrete cosine transform filtering[J].Signal Processing, 1990,19(3) :233-245.
  • 4Chen W H, Fralick S C. Image enhancement using cosine transform filtering [A]. In: Image Sci. Math. Symp. [C].Monterey,CA, USA, November, 1976 :186-192.
  • 5Neri A, Russo G, Talong P. Inter-block filtering and downsampling in DCT domain [J]. Signal Processing: Image Communication, 1994,6(4) :303-317.
  • 6Smith B C, Rowe L A. Algorithms for manipulating compressedimages [J]. IEEE Computer Graphics and Applications, 1993,13(5) :34-42.
  • 7Shen Bo, Sethi I K. Inner-block operations on compressed images [A]. In: Proc. ACM Intl. Conf. Multimedia'95 [C]. San Francisco, Codifornia, USA, 1995 : 489- 498.
  • 8Shen Bo, Sethi I K. Algorithms in the JPEG discrete cosine transform compressed domain[J]. Journal of Electronic Imaging,1996,5(2):182-190.
  • 9Robert Reeves. New shift, scaling and derivative properties for the DCT[A]. In: Proc. of IS&T/SPIE Conference on Visual Communication and Image Processing'99 [C]. San Jose,California,USA, 1999,3653:418-428.
  • 10Hu Q, Panchanathan S. A comparative evaluation of spatial scalability techniques in the compressed domain[A]. In:Proc. of IEEE Conference on Electrical and Computer Engineering[C],Calgray, Alberta, Canada, 1996,1:474-477.

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系统工程与电子技术
1995年 第10期

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