An Imaging System to Visualize Gymnast's Form and Locus—Multi-Motion

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE J
Volume: 107, No. 6, pp. 353–358
Abstract: A visualization system called “Multi-motion” has been developed, which shows a gymnast's form and locus in performing a vault. It extracts player's images quickly and automatically and displays forms from jump to finish, overlaying forms in a scene like a stroboscopic camera image, even when the gymnast is wearing a colorful uniform and the background is a complex pattern that includes moving objects such as walking spectators. To achieve this, a new extraction method has been developed which adopts motion analysis focusing on the feature that “a gymnast is bigger and moves faster, and spectators in the background are smaller and move slower.” The system was successfully applied to the live broadcast of the World Gymnastics Championship and gained public favor as well as the approval of the gymnastic community.
Publication Date: 1998-06-01
DOI: 10.5594/J08389
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J08389
Author(s): Nobuyuki YagiJapan Broadcasting Corp. (NHK) Science and Technical Research Laboratories, Tokyo 157, Japan
bio
Nobuyuki Yagi received B.E., M.E., and Ph.D. degrees in electronic engineering from Kyoto University, Japan, in 1978, 1980, and 1992, respectively. He joined NHK (Japan Broadcasting Corp.) in 1980. Since 1997, he has worked at NHK Engineering Administration Department, engaged in research and development on image processing, video signal processing, motion interpretation, video synthesis, video coding, human interfacing, medical imaging, multiprocessors, video production, and digital broadcasting systems. Yagi received the Best Paper Award from the Institute of Television Engineers (ITE), in 1991. He was a secretary of the Technical Committee on Image Engineering of IEICE and an editor of IEICE Transactions on Information and Systems.
Sang Gil LeeJapan Broadcasting Corp. (NHK) Science and Technical Research Laboratories, Tokyo 157, Japan
bio
Sang Gil Lee received B.S., M.S., and Ph.D. degrees in electronic engineering from Seoul National University in 1981, 1983, and 1994, respectively. He has been working at the KBS Technical Research Institute in Korea since 1983. Beginning in November 1994, he was a visiting researcher at NHK Science and Technical Research Laboratories for a year. Currently he is a senior research engineer; his interests are multimedia broadcasting, image coding, and image signal processing.
Hideo NoguchiJapan Broadcasting Corp. (NHK) Science and Technical Research Laboratories, Tokyo 157, Japan
bio
Hideo Noguchi received an M.A. degree in electrical engineering from Tokyo University of Agriculture and Technology in 1972. Since that time he has been working at NHK (Japan Broadcasting Corp.). He was involved in research on an image database and in the development of the still picture retrieval system for broadcasting stations. He has been working for Information Broadcasting Laboratories since 1997. Noguchi is a member of the Institute of Electronics, Information and Communication Engineers (IEICE), Institute of Television Engineers of Japan (ITEJ), Information Processing Society of Japan (IPSJ), and the Institute of Image Electronics Engineers of Japan (IIEEJ).
Copyright: © 1998 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Real-Time Locus Indication System for a Flying Golf Ball [Active]
1. Matuzaki K. Murayama K. Murakaimi K. , “Motion Tracer,” NHK R&D , Vol. 21 , No. 9 , pp. 369 – 376 , in Japanese, 1978 . EXTERNAL
2. Namikawa I. , “Animation of Marathon Runner—Display Method,” Proc. Annual Convention of ITE ′92 , No. 1–13, in Japanese, 1992 . EXTERNAL
4. Kuwashima S. , “Locus Display System of Football by Image Processing with Multiple Camera,” Proc. Winter Convention of ITE′95 , No. 1–1, in Japanese, 1995 . EXTERNAL
5. Inoue S. Yagi N. Sumiyoshi H. , “Practical Image Processing with C Language for Macintosh,” OHMsha Publishing , pp. 141 – 160 , in Japanese, 1994 . EXTERNAL
6. Shimizu S. , “Report on Program Production for International Use of World Gymnastics Championship in Sabae,” Technical Report of ITE, BCS96-6, BF096-40, in Japanese, 1996 . EXTERNAL

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Nobuyuki Yagi, Sang Gil Lee, and Hideo Noguchi; An Imaging System to Visualize Gymnast's Form and Locus—Multi-Motion, SMPTE Journal ( Volume: 107, Issue: 6, June 1998); SMPTE, 1998. Available at https://doi.org/10.5594/J08389

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Nobuyuki Yagi, Sang Gil Lee, and Hideo Noguchi; An Imaging System to Visualize Gymnast&#x27;s Form and Locus—Multi-Motion, SMPTE Journal ( Volume: 107, Issue: 6, June 1998); SMPTE, 1998. Available at https://doi.org/10.5594/J08389

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<span class="citation">Nobuyuki Yagi, Sang Gil Lee, and Hideo Noguchi; <cite>An Imaging System to Visualize Gymnast&#x27;s Form and Locus—Multi-Motion</cite>, SMPTE Journal ( Volume: 107, Issue: 6, June 1998); SMPTE, 1998. Available at <a href="https://doi.org/10.5594/J08389" target="_blank" rel="noopener">https://doi.org/10.5594/J08389</a></span>

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Nobuyuki Yagi, Sang Gil Lee, and Hideo Noguchi; <cite id="bib-10-5594-j08389">An Imaging System to Visualize Gymnast&#x27;s Form and Locus—Multi-Motion</cite>, SMPTE Journal ( Volume: 107, Issue: 6, June 1998); SMPTE, 1998
<span class="doi">10.5594/J08389</span>
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