Information Technology Reference
In-Depth Information
Adaptive block size
transform
Improvement
of pre-filter
㧙
Transform / Quantize
Improvement
of CABAC
Improvement
of Intra coding
Inv.Quant.
/ Inv.Transform
Entropy
coding
㧗
Intra
Prediction
Application
of adaptive
block partition
Improvement
of interpolation
filter
In-loop
filter
MC
Enhancing decoded
picture with local
adaptation
Motion
Prediction
memory
Fig. 60
Trials of coding performance improvement
7 Realization of UHD Service and System
7.1 Realization of UHD Service
UHDTV service will be realized when the next generation video coding technol-
ogy is accompanied with the progress of the circumference technologies such as
advanced sensor, display, storage and transmission infrastructure. UHD video sig-
nal compressed by a new video coding standard, which can realize twice as much
performance as that of AVC/H.264, will be transmitted and delivered through
wired (NGN) or wireless (3.9/4G. wireless LAN, satellite) lines with high speed
and ubiquitous. We will be able to enjoy video with high quality and reality by
means of large screen TV with over 100 inches diagonal and also to enjoy video
with clearness like a gravure picture by means of organic EL display equipped
with power saving and flexibility [32].
7.2 Another Possibility of Video Coding Technology in Future
Rather than extensions of the current system, high coding performance and new
function for next generation video coding may also be derived from different ap-
proaches, e.g., Intelligent Coding as below:
(1)
Intelligent Coding advocated by Harashima et al. in the 1980s has re-
cently attracted attention as an alternative path for future video coding.
(2)
In this technology, a common model is shared by encoder and decoder,
and the model in the decoder is modified synchronously according to
the information detected and transmitted by the encoder.
