FEATURE
of conventional signal format, the PSNR drop is not so significant and we can verify that the quality of Service Compatible 3DTV is better than that of Frame Compatible 3DTV. In case of 3DTV, the result of PSNR is not so important, because the depth parameter is more critical than other parameters of video for 3D quality.
To verify viewers’ favour towards, and quality of their 3DTV service experience, subjective picture quality assessments using Recommendation ITU-R BT.500-11 are scheduled for the end of 2010.
Conclusion
In this paper we described our experiences of 3DTV experimental broadcasting. We also took a look at details of 3DTV service flow, encoding methods, image formats of different 3DTV service methods and limitations of a 3DTV service. To compare quality of 3DTV services we also conducted an object picture quality assessment (PSNR) simulation. As we expected, we can verify that the quality of Service Compatible 3DTV is better than that of Frame Compatible 3DTV. We also found that when we put two streams into legacy RF bandwidth the quality of 3DTV service is acceptable.
In these experimental broadcasts, we expect to verify the validity and practicality of a 3DTV service also in the hope of giving people a much more realistic TV experience.
BYUNGSUN KIM
ByungSun Kim, Senior Researcher, has 15 years experience in the broadcasting industry. He has specialized in broadcasting content security and anti-piracy since 2006. Now he is joining 3DTV and UHDTV
research projects. He has been performing in 3DTV experimental broadcasting in Korea and participating in projects developing 3DTV broadcasting system such as 3D character generator and 3DTV camera.
JINMO KANG
Jinmo Kang received B.S., M.S. degrees from Seoul National University, Seoul, Korea in 2007, 2009, respectively. He joined KBS Technical Research Institute in 2010. His major research interests lies on 3D camera
rigs, Multi-view camera system & 3D image processing.
JUNYONG LEE Junyong Lee, Principal Researcher, received B.S. degree from Yonsei University, Seoul, Korea in 1989, and M.S. degree from KAIST, Daejon, Korea 1991, respectively. He joined KBS Technical Research
Institute in 1991. His major research interest is video signal processing, 3DTV camera and stereoscopic human factors.
6 KEUNSIK LEE
He joined KBS in 1988. Since then he has been with KBS Technical Research Institute, engaged in the research and development of broadcasting equipments. Now he is the deputy director of KBS
TRI who is in charge of 3DTV/UHDTV team and 3D graphics team.
REFERENCES
[1] TTAK.KO-07.0014/R2, Jun. 2009. Standard of Transmission and Reception for Digital Terrestrial Television Broadcasting. [2] ISO/IEC 13818-1, Oct. 2007. Information technology – Generic coding of moving pictures and associated audio information: Systems.
[3] ATSC A/65C, Oct. 2006. Program and System Information Protocol for Terrestrial Broadcast and Cable (Revision C) with Amendment No.1.
[4] ISO/IEC 14496-10, 2005. Information technology – Generic coding of moving pictures and associated audio information: Video. [5] ISO/IEC 14496-10, 2005. Information technology – Coding of audio-visual objects – Part 10: Advanced Video Coding. [6] HDMI Licensing, LLC, Mar. 2010. High-Definition Multimedia Interface Specification Version 1.4a, Extraction of 3D Signaling Portion.
Video Coding.
Additionally we hope that our experiences will help ABU members to participate in 3DTV broadcasts.
Even though ‘Avatar’ drew over 10 million people, people had extremely different opinions about the value of the pure 3D effect other than the splendor of the story and the animation. It seems that between 4 percent and 10 percent of people are unable to perceive 3D depth and excessive depth perception can cause 3D fatigue and physiological problems. Considering these aspects, the need to standardise and observe 3D safety guidelines is urgent and producers must be cautious and careful in creating 3D content. Especially, in case of terrestrial broadcasters, comfortable 3D programmes are the most important thing to consider, because people watch a lot of TV every day, so that broadcasting. Thus 3D programmes are currently limited to special premium events such as the World Cup, The Olympics, etc.
Korea always moves fast and in case of the 3D industry and policy, it is not exceptional. I hope that 3DTV is not a brief flash of success, but lasts long enough to maintain public interest.
Acknowledgement
This experimental 3DTV broadcast is a joint project among KBS, KCC (Korea Communications Commision) and ETRI (Electronics and Telecommunications Research Institute).
AUTHORS SANGJIN HAHM
He joined KBS (Korea Broadcasting System) in 2001. Since then he has been with KBS Technical Research Institute, engaged in the research on 3DTV/UHDTV, video codec and digital video processing.
INJUN CHO
In-Joon Cho received B.S., M.S. degrees from INHA University, Incheon, Korea in 1998, 2000, respectively. He joined KBS Technical Research Institute in 2003. His major research interests lies on GPU
computing, Video Coding & 3DTV camera rigs.
CHANGSEOB PARK
Changseob Park received Ph.D. degree from KAIST, Korea in 2001. He joined KBS Technical Research Institute in 1981. His major research interests lies on Computer Vision, 3DTV, UHDTV, Image Processing &
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