Information Technology Reference
In-Depth Information
Chapter 6
Super Hi-Vision and Its Encoding System
Shinichi Sakaida
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Abstract.
The Super Hi-Vision (SHV) is an ultra high-definition video system
with 4,000 scanning lines. Its video format is 7,680×4,320 pixels, which is 16
times the total number of pixels of high definition television and the frame rate is
60 Hz with progressive scanning. It has been designed to give viewers a strong
sense of reality. To make the system suitable for practical use, such as in broad-
casting services, a high-efficiency compression coding system is necessary. There-
fore, we have developed several Super Hi-Vision codec systems based on MPEG-
2 and AVC/H.264 video coding standards. In this chapter, details of these codec
systems are described and transmission experiments using the codec systems are
introduced.
1 Introduction
Super Hi-Vision (SHV) consists of an extremely high-resolution imagery system
and a super surround multi-channel sound system [1]. Its video format consists of
7,680×4,320 pixels (16 times the total number of pixels of high definition televi-
sion (HDTV)) and a 60-Hz frame rate with progressive scanning. It uses a 22.2
multi-channel sound system (22 audio channels with 2 low frequency effect chan-
nels) and has been designed to give viewers a strong sense of reality. The final goal
of our research and development of SHV is to deliver highly realistic image and
sound to viewers' homes. When SHV becomes applicable as a broadcasting sys-
tem, we will be able to use it for many purposes, such as archival and medical use.
NHK (Japan Broadcasting Corporation) has developed SHV cameras, projec-
tors, disk recorders, and audio equipment. Several SHV programs have been pro-
duced using these devices, and demonstrations of the programs have attracted
many visitors at events such as the 2005 World Exposition in Aichi, Japan, as well
as NAB 2006 (National Association of Broadcasters) in Las Vegas, USA [2] and
IBC 2006 (International Broadcast Conference) in Amsterdam, Netherlands [1].
