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Volume 32 Issue 09
Sep.  2006
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Journal of Beijing University of Aeronautics and Astronautics  > 2006  >  32(09): 1046-1050.
Wang Wei, Zhang Houxiang. Climbing technique of cleaning robot for spherical surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 17-21. (in Chinese)
Citation: Yao Chunlian, Li Wei, Meng Qingleiet al. Design of extended video encoder with pre-processing of interlace signal[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(09): 1046-1050. (in Chinese)
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Design of extended video encoder with pre-processing of interlace signal

  • School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 25 Nov 2005
  • Publish Date: 30 Sep 2006
    Abstract
  • Video coding stands gives out several coding methods for interlace signal. However, many kinds of macroblock division methods for motion estimation, which makes these methods very time-consuming and can′t be used actually. So an extended video encoder was designed, motion-adaptive de-interlacing was used to convert interlace signal into frame signal, then encoding frame signal with the fixed frame method. There are three steps for signal converting. Firstly, motion detection by utilizing four field signals with the same parity to get motion status of pixel, secondly, according to the motion status of pixel, use different filter to interpolate the pixel, thirdly, interlace interpolation field and current field to get progressive frame. The experimental result shows that it can get the same peak signal noise rate as MBAFF, but the encoding time is about 1/3 of other methods. What′s more, when displayed on progressive screen, it can solve the problem such as line crawling etc.

     

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    • References(1)
  • [1] Wang L, Panusopone K, Gandhi R, et al. Interlace coding tools for H.26L video coding Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG Meeting,Thailand,VCEG-O37.doc, 2001.[2] Wang L, Panusopone K, Gandhi R, et al. Adaptive frame/field coding for JVT video coding JVT Meeting, Geneva, JVT-B-071.doc, 2002.[3] Ajeev Gandhi, Wang Limin, Panusopone K, et al. Macroblock adaptive frame/field coding for interlacer sequences JVT Meeting, Austria, JVT-D108.doc,2002.[4] Borgwrdt P. Core experiment on macroblock adaptive frame/field encoding JVT Meeting, Geneva, JVT-B117.doc, 2002.[5] Gerard De, ErWin Br. De-interlacing-an overview Proceedings of IEEE, 1998,86(9):1839-1856[6] Koivunen Tero. Motion detection of an interlaced video signal [J].IEEE J Consumer Electronics, 1994,40(3):753-759[7] Lin Shyhfeng, Chang Yuling, Chen Lianggee. Motion adaptive interpolation with horizontal motion detection for de-interlacing[J]. IEEE J Consumer Electronics, 2003,49(4):1256-1265[8] Chien Shaoyi, Huang Yuwen, Hsieh Bingyu, et al. Fast video segmentation algorithm with shadow cancellation, global motion compensation, and adaptive threshold techniques [J]. IEEE J Multimedia, 2004,6(5):732-748
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