Vol. 42 No. SIG 8(TOD 10) July 2001 1 2 3 4 HTML 100 Development of Authoring and Delivery System for Synchronized Contents and Experiment on High Speed Networks Yutaka Kidawara, 1 Tomoaki Kawaguchi, 2 Kazutoshi Sumiya 3 and Katsumi Tanaka 4 Recently, more and more attention has been focused on synchronized contents instead of existing simple video contents on the Internet. The synchronized contents can provide more information for users by displaying HTML and text data. We can easily create several kinds of contents accommodating each individual user when the additional information is modified for the synchronized contents. In this paper, we proposed Encapsulated Synchronized Contents that distribute synchronized contents to specific users with profile information designed by creators. And we developed an Authoring System and Delivery System. An experiment to verify the usefulness of these systems was implemented with 100 trial subjects. 1. 1 Information and Telecom Products Department, KOBE STEEL, LTD. 2 NTT Solution Business Department, NIPPON TELEGRAM AND TELEPHONE WEST CORPORATION 3 Research Center for Urban Safety and Security, Kobe University 4 Graduate School of Science and Technology, Kobe University XML SMIL: the Synchronized Multimedia Integration Language 1) HTML 156
Vol. 42 No. SIG 8(TOD 10) 157 2) 8),9) 12 4 8 2. 3. One-To-One Web Web ESC: Encapsulating Synchronized Content HTML ESC ESC ESC 1 ESC ESC ESC
158 July 2001 1 ESC Fig. 1 A structure of Encapsulating Synchronized Content (ESC). HTML 1 ESC ESC 1 ESC SMIL1 SMIL2 SMIL3 20 SMIL1 1 SMIL2 SMIL3 ESC 2 2 3 A B C 2 ESC Fig. 2 An example of ESC autonomous distribution. A ESC A Web SMIL A SMIL1 SMIL1 HTML A A SMIL1 1 2 ESC 1 2 3 if 1 = then SMIL1 else if 2 = then SMIL2 else SMIL3 B SMIL2 C SMIL3 4. ESC SMIL SMIL RealVideo 10) 3
Vol. 42 No. SIG 8(TOD 10) 159 DB DB DB R ealvideo Fig. 4 4 Content displayed monitor. 3 Fig. 3 System configuration. 4.1 IBM ViaVoice 11) SMIL rm 4 4 RealVideo rm SMIL 4.2 ESC 5 DB SMIL (1 2 3) (4) SMIL (5) 1 3 SMIL ESC1 ESC2 ESC3 (5) ESC (6) ESC
160 July 2001 7 ESC Fig. 7 Distribution procedure of ESC by Synchronized Content Encapsulating System. 5 Fig. 5 A function example of Synchronized Content Encapsulating System. 6 Fig. 6 An example window monitor of Synchronized Content Encapsulating System. ESC 1 ESC 1 ESC 6 4.3 ESC ESC ESC ESC ESC ESC HTML Java Servlet 7 (1 2) ESC DB (3) ESC ESC (4) ESC SMIL ESC HTML SMIL (5 6) ESC ESC ESC ESC ESC ESC 7 1 ESC1 SMIL1 ESC2 SMIL5 ESC3 SMIL9 1 (5) 2 SMIL3 SMIL4 SMIL8 ESC
Vol. 42 No. SIG 8(TOD 10) 161 1 Table 1 Monitors by age and by occupation. 20 3 2 0 7 2 0 14 30 13 2 7 7 0 2 31 40 15 1 0 8 0 5 29 50 12 0 0 1 0 3 16 60 0 0 0 4 0 4 8 70 0 0 0 1 0 1 2 43 5 7 28 2 15 100 Table 2 2 Users experienced degree of the Internet. 8 Fig. 8 User window of Synchronized Content Distribution System. ESC Web ESC Web Web ESC 8 Web 5. 12 4 8 CATV NTT LAN 5.1 100 12 4 8 CATV LAN 1 28 34 25 9 4 (1) (2) (3) ESC ESC 100 100 1 2 Web 7 ESC RealProducerG2 10)
162 July 2001 5.2 ESC (1) 4 8 HTML HTML HTML (2) AVI HTML (3) SMIL GUI (4) 11 80 168 248 5.3 300 kbps RealVideo HTML 9 3 1 3 HTML 2 7 1 4 8
Vol. 42 No. SIG 8(TOD 10) 163 9 Fig. 9 Synchronized content configuration for our experiment. 2 3 14 5.4 RealNetwork RealProducerG2 10) CD-ROM 1 1 html 5 5 20 CD-ROM CD-R 1 20 1 5.4.1 RealProducerG2 Web 5 1 1 SMIL 49 RealProducerG2 T eval = 3T eval =0.8 0.9 80% 90% 69% 95% 105% 24% 80% 10 %
164 July 2001 3 Table 3 Consuming less content creation time by our system. T eval 0.85 15 0.85 0.90 19 0.90 0.95 1 0.95 1.00 7 1.00 1.05 5 1.05 1.10 0 1.10 1.15 1 1.15 1.20 0 1.20 1 30% 40% 1 CD-ROM 7 10 % SMIL 80% 90% 71% 86% 50% 14% 80% 80% ViaVoice98 1 80%
Vol. 42 No. SIG 8(TOD 10) 165 80% 5.5 7 100 5.5.1 ESC 100 10 Fig. 10 Viewing rate comparison of synchronized content and video content. Fig. 11 11 Audience rating comparison by each content. 7 7 +3 3 10 0 2 11 40 ESC
166 July 2001 Fig. 12 12 Comparison of degree of understanding. Fig. 13 13 Comparison of degree of interest. Table 4 4 Correct answer rating of before and after an experiment. 53% 71% 60% 86% 7 3 0 3 12 ESC 50 50 4 2 18% 26% ESC 20% ESC 13 14 Fig. 14 Comparison of degree of enthusiasm for study. ESC 10 ESC 14 ESC ESC
Vol. 42 No. SIG 8(TOD 10) 167 ESC PC html ESC ESC ESC / 86% / 43% 14% 43% 2 ESC GUI / 6. 100 6.1 CD-ROM 1 5 5,431 CD-ROM 5 Table 5 Price of each content. CD-ROM HTML 5,431 8,013 0 1,136 1,153
168 July 2001 8,013 1,136 1,153 6.2 10 300 kbps 10 3 Mbps 10 Mbps OCN 10% 10 Mbps 33.3 333 OCN 333 1 34 1 680 1 1,000 6,800 10% 680 300 kbps 680 204 Mbps CATV CATV LAN 1 1,000 150 5 5 1,100 1 3,330 330 3,330 30% 6 7 1,930 3,330 3,331 3,862 1,000 1,500 15 15 3,331 1,300 641
Vol. 42 No. SIG 8(TOD 10) 169 Table 6 6 A trial calculation of monthly expenditure. 1,000 10,000 1,500 165 3,000 10,000 1,500 990 5,000 20,000 3,000 1,650 10,000 40,000 6,000 3,300 30,000 100,000 15,000 9,900 50,000 160,000 24,000 16,500 Table 7 7 A trial calculation of profits-and-losses. 1,000 550 730 3,000 3,300 810 12 3,330 3,696 1,087 9 3,331 3,697 412 5,000 55,000 850 24 6,661 7,394 676 44 10,000 11,000 1,700 24 30,000 330,000 8,100 12 50,000 550,000 14,500 11 Fig. 15 15 Profits-and-losses distribution. 1,500 3,331 40 3,330 5 7. ESC 100 7 ESC INS 1) SMIL (Synchronized Multimedia Integration Language). http://www.w3.mag.keio.ac.jp/audiovideo 2) Vol.40, No.SIG8(TOD4) (1999).
170 July 2001 3) Java 97-DBS-111 (1997). 4) 54 3, pp.103 104 (1997). 5) Kidawara, Y., Tanaka, K. and Uehara, K.: Encapsulating Multimedia Contents and A Copyright Protection Mechanism into Distributed Objects, DEXA (1997). 6) 3D D-I (1999). 7) 3D 98-DBS-116(2), pp.367 374 (1998). 8) DEWS2000 (2000). 9) 60 3 (2000). 10) RealSystem G2: Real Networks. http://www.real.com/ 11) ViaVoice: IBM. http://www.ibm.co.jp/voiceland/index.html ( 12 12 20 ) ( 13 3 28 ) 1988 1990 ABS ABS 1999 54 IEEE Computer Sciety 1989 VOD 1988 1998 1999 ACM IEEE Computer Society 1974 1976 1979 1986 1994 1995 IEEE Computer Society ACM