期刊文献+

局部运动场景中运动对象的压缩域分割算法 被引量:1

Compressed Domain MoVing Object Segmentation in Local Motion Scene
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摘要 压缩域视频运动对象的分割技术近年来逐渐被人们所重视,并且成为较实用的技术之一。该文针对目前压缩域中运动对象分割质量不高的问题,提出一种压缩域分割的改进算法。该算法首先从MPEG压缩码流中提取运动矢量,并对矢量进行运动累加和中值滤波处理,最后利用贝叶斯风险决策对非零运动矢量区域进行校正,最终得到较好的分割结果。该文还定义了压缩域分割质量的评价参数分割率和错分率,为评价压缩域的分割结果提供了客观评价标准。 More and more attention has been paid to the study of moving object segmentation in MPEG compressed domain these years, which has already developed into a practical technology. In this paper, an algorithm by using motion vectors and DCT coefficients is put forward for segmenting moving object in MPEG compressed domain. As regards local motion scene, the algorithm produces a better result of segmentation than currently adopted ones. Firstly, the motion vectors are processed by accumulation and median filter; then the areas of non-zero motion vectors are rectified by the Bayesian decision to get high-quality segmentation.
出处 《电子与信息学报》 EI CSCD 北大核心 2005年第8期1249-1253,共5页 Journal of Electronics & Information Technology
基金 国家973计划(2001CB309403)资助课题
关键词 MPEG 分割 压缩域 MPEG, Segmentation, Compressed domain
作者简介 刘龙:男,1976年生,博士生,研究兴趣包括基于对象的视频编码与检索技术、无线视频传输技术和视频分析等. 韩崇昭:男,1942年生,教授,博士生导师,主要研究兴趣为信息融合、雷达信号处理、图像处理等. 刘洁瑜:女,1970年生,博士生,研究兴趣包括多媒体技术、小波理论、时频分析等. 王占辉:男,1978年生,硕士生,研究兴趣包括图象处理、视频分析与传输控制技术、小波分析等.
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参考文献8

  • 1Venkatesh R, Ramakrishnan K R. Content-based video retrieval using motion descriptors extracted from compressed domain.IEEE International Symposium on Circuits and Systems(lSCAS),Arizona, 2002, vol. 4:141 - 144.
  • 2Venkatesh R, Ramakrishnan K R. Compressed domain motion segmentation for video object extraction, Int'l Conf. on Acoustics,Speech, and Signal Processing, Orlando, Sept. 2002, vol.4:3788 - 3791.
  • 3Wang H, Chang S F. A highly efficient system for automatic face region detection in MPEG video. IEEE Trans. on Circuit and System for Video Technology, 1997, 7(4): 615 - 628.
  • 4Orachat Sukmarg, Rao K R. Fast object detection and segmentation in mpeg compressed domain. TENCON 2000,Kuala Lumpur, Malaysia, Sept. 2000:1769 - 1770.
  • 5Eng How-Lung, Ma Kai-Kuang. Spatiotemporal segmentation of moving video objects over mpeg compressed domain. IEEE Int'l Conf. on Multimedia and Expo(ICME), New York, 2000, Vol.3:1531 - 1534.
  • 6Ji Salkmann, Park Hyun Wook. Moving object segmentation in DCT-based compressed video. Electronics Letters, 2000, 36(21 ):1769 - 1770.
  • 7ISO/IEC.JCTI/SC29 CDI 1172-2, MPEGI, international standard for coding of moving pictures and associated audio for digital storage media at up to about 1.5Mb/s. 1991.
  • 8ISO/IEC.JCTI/SC29 CD13818-2, MPEG2, coding of moving pictures and associated audio. 1993.

同被引文献11

  • 1吴思,林守勋,张勇东.基于动态背景构造的视频运动对象自动分割[J].计算机学报,2005,28(8):1386-1392. 被引量:19
  • 2Nack F, Lindsay A T. Everything you wanted to know about MPEG-7: Part 2.IEEE Multimedia, 1999, 6(3): 64-73.
  • 3Kim C, Hwang J N. Fast and automatic video object segmentation and tracking for content-based application. IEEE Trans.on Circuits and Syst. Video Technol., 2002, 12(2): 122-128.
  • 4Kim C, Hwang J N. Object-based video abstraction for video surveillance system. IEEE Trans. on Circuits and Syst. Video Technol., 2002, 12(12): 1128-1138.
  • 5Huang J C, Hsieh W S. Wavelet-based moving-object segmentation. IEEE Electronics Letters, 2003, 39(19): 1380-1382.
  • 6Huang J C, Su T S, Hsieh W S. Double-change-detection method for wavelet-based moving-object segmentation. IEEE Electronics Letters, 2004, 40(13): 798 - 799.
  • 7Dufaux F, Konrad J. Efficient, robust and fast global motion estimation for video coding. IEEE Trans. Image Processing,2000, 9(3): 497-501.
  • 8Liew A W C, Shu Hung Leung, Wing Hong Lau. Segmentation for color lip images by spatial fuzzy clustering. IEEE Trans.Fuzzy Systems, 2003, 11(4): 542-549.
  • 9Eschrich S, Ke Jingwei, Hall L O, et al.. Fast accurate fuzzy clustering through data reduction. IEEE Trans. Fuzzy Systems,2003, 11(2): 262-270.
  • 10Sikora T. The MPEG-4 video standard verification model. IEEE Trans. Circuit Syst. Video Technol., 1997, 7(1 ): 19- 31.

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