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모양 변화 축적도를 이용한 움직이는 객체의 표현 및 검색 방법

A method of describing and retrieving a sequence of moving object using Shape Variation Map

  • 최민석 (한양대학교 대학원 전자공학과) ;
  • 김회율 (한양대학교 전자공학과)
  • 발행 : 2004.02.01

초록

동영상에서 움직임 정보는 동$.$영상의 내용을 표현하는데 중요한 역할을 한다. 따라서 움직임 정보론 이용하여 동영상의 내용을 분석하고 검색하는 방법들이 다양하게 제안되고 있다. 지금까지의 움직임 정보에 관한 연구는 움직이는 동작의 분석보다는 단순한 움직임의 방향이나 궤적의 분석에 치중되고 있다. 본 논문에서는 객체의 동작을 분석하기 위한 방법으로 움직임에 의한 모양 변화를 표현하는 모양 변화 기술자(descriptor)를 소개하고, 모양 변화 축적도(shape variation map)를 이용한 모양 변화 표현방법을 제안한다. 실험을 통하여 제안된 방법이 기존의 방법에 비하여 검색 효율측면에서 11%의 성능향상을 보였으며, 제안된 방법이 객체의 움직임에 의한 모양 변화를 효과적으로 표현하며, 인지적 관점의 움직임 검색에 이용 가능함을 보였다.

Motion Information in a video clip often plays an important role in characterizing the content of the clip. A number of methods have been developed to analyze and retrieve video contents using motion information. However, most of these methods focused more on the analysis of direction or trajectory of motion but less on the analysis of the movement of an object. In this paper, we introduce the shape variation descriptor for describing shape variation caused by object movement along time, and propose a method to describe and retrieve the shape variation of the object using shape variation map. The experimental results shows that the proposed method performed much better than the previous method by l1% and is very effective for describing the shape variation which is applicable to semantic retrieval applications.

키워드

참고문헌

  1. S. F. Chang et al., 'A Fully Automated Content-Based Video Search Engine Supporting Multi-Objects Spatio-Temporal Queries', IEEE Transactions on Circuit and Systems for Video Technology, 8(5), pp.602-615, 1998 https://doi.org/10.1109/76.718507
  2. N. Dimitrova and F. Golshani, 'Motion recovery for video contents analysis', ACM Transaction on Information Systems, 13(4), pp.408-439, 1995 https://doi.org/10.1145/211430.211433
  3. Y. P. Tan, S. R. Kulkarni and P. J Ramadge, 'Rapid estimation of camera motion from compressed video with application to video annotation', IEEE Transactions on Circuit and Systems for Video Technology, 10(1) pp.133-146, 2000 https://doi.org/10.1109/76.825867
  4. MPEG-7 Visual Group, 'Textof ISO/IEC 15938-3/FDIS Information technology Multimedia content description interface Part 3 Visual,' ISO/IEC JTC1/SC29WG11 N4358, Sydney, July, 2001
  5. B.S. Manjunath, Philippe Salembier and Thomas Sikora, Introduction to MPEG-7 : multimedia content description interface, John Wiley & Sons, West Sussex, England, 2002
  6. Aron F. Bobick and James W. Davis, 'The Recognition of Human Movement Using Temporal Templates', IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol.23, No.3, pp.257-267, March, 2001 https://doi.org/10.1109/34.910878
  7. Sang-Youn Lee, Jong-An Kim, Woo-Young Lim, Young-Sik Choi and Hae-Kwang Kim,'CE-1 Core Experiment Results for shape-sequence descriptor,' ISO/IEC JTC1/SC29WG11 M7299, Sydney, July, 2001
  8. S. Lee, Y.-S.Choi, W. Lim, T.-K. Kwon and H.-K. Kim, 'Shape-sequence-based key image generation algorithm for browsing and retrieval of video clips', IEE Electronics Letters, Vol.38, No.12, pp.549-550, June, 2002 https://doi.org/10.1049/el:20020382
  9. Chang-Hoon Hyun, Min-Seok Choi, Seok-Hwan Jang and Whoi-Yul Kim, 'Proposal for shape sequence descriptor for motion-description,' ISO/IECJTC1/SC29/WG11M6904, Pisa, Jan., 2001
  10. Young-Sung Kim, Min-Seok Choi and Whoi-Yul Kim, 'An Efficient Shape Descriptor for Contents-Based Image Retrieval Angular Radial Transform (ART)', 13th Workshop of Image Processing and Understanding, pp.271-278, Jan., 2001
  11. B. S. Manjunath, Philippe Salembier, Thomas Sikora, Introduction to MPEG-7 : multimedia content description interface, West Sussex, England: John Wiley & Sons, pp.238-240, 2002
  12. MPEG-7 Visual Group, 'Description of MPEG-7 Visual Core Experiments,' ISO/IEC JTC1/SC29/WG11N4361, Sydney, July, 2001
  13. MPEG-7 Visual Group, 'Descriptor of Core Experiments for MPEG-7 Color/Texture Descriptors,' ISO/IEC JTC1/SC29/WG11 N2929, Melbourne, Oct., 1999
  14. B.S. Manjunath, Philippe Salembier and Thomas Sikora, Introduction to MPEG-7 : multimedia content description interface, West Sussex, England: John Wiley & Sons, 2002