World’s First Terrestrial 3DTV Broadcasting; How we do it in Korea
World’s First Terrestrial 3DTV Broadcasting; How we do it in Korea
Byungsun Kim, Sangjin Hahm, Injun Cho, Jinmo Kang,
Keunsik Lee, Changseob Park, Junyong Lee KBS (Korean Broadcasting System), Korea
Abstract
In recent years, 3D films have been the focus of public attention in Korea. ‘Avatar’ drew over 10 million people and ‘Alice in Wonderland’, ‘Clash of the Titans’ and ‘How to Train your Dragon’ followed. Nowadays 3DTV service is a hot issue, and the number of 3DTV sales is growing every day following KBS’ 3DTV first trial run in May 2010.
KBS has broadcast two 3DTV trial runs, commencing in May and October. with different service implementation methods, to verify the need for and validity of a 3DTV service and to collect opinions about the 3DTV experience.
In this paper, we show 2 types of 3DTV service implementation; the frame compatible 3DTV service and the service compatible 3DTV service.
The Frame Compatible 3DTV service method, which can be compatible with legacy DTV broadcasting equipment and systems, was adopted for the ‘2010 Colourful Daegu Pre-Championship Meeting’ and the ‘World Cup 2010’ broadcast from May to July 2010. One of the major advantages of this service method is that we can use existing DTV systems and handle 3D videos easily because both left and right images are converted to a side-by-side image format. However it has the disadvantage of conventional DTV receivers’ being unable to display side-by-side 3D content.
A Service Compatible 3DTV service transmitting full HD 3DTV dual streams was launched in October 2010 to show a high-quality 3DTV service at the G20 summit meeting. This method cannot use legacy DTV broadcasting facilities and requires new dual-stream compatible 3D equipment and newly developed 3DTV receivers that can decode dual-stream 3DTV video. This involves the broadcasters in extra cost.
In this experimental broadcast, we expect to verify the validity and practicality of 3DTV services and also hope to give viewers a much more realistic TV experience.
Introduction
In Korea, people can watch 3D content in the average home. Content which previously could only be seen in a 3D cinema. So, the dream of 3DTV has come true through the KBS 3DTV test trial runs in 2010.
There were several 3DTV attempts in the 20th century, but they couldn’t blossom because of immature technology and expensive equipment for 3DTV. Even now, although 3DTV technology has made huge progress, native limitations of 3DTV, such as the need for glasses, 3D fatigue, difficulty of implementation, etc, have not been overcome completely. As seen in the case of HDTV, it could take a long time before 3DTV becomes popular in common household.
Until now, most of commercially available 3DTVs use a binocular stereoscopic method which requires wearing 3D glasses to watch 3D content. In the future the auto- stereoscopic method, without 3D glasses, which is not commercialised yet, will be developed and popularised.
To verify the need for and validity of a 3DTV service and to collect opinions about the 3DTV experience, KBS broadcast trial runs twice, starting in May and October with different 3DTV service implementation methods.
In this paper, we show two different types of 3DTV service implementation; a Frame Compatible 3DTV service and a Service Compatible 3DTV service. In the second part we will see the details of side-by-side single-stream 3DTV
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