The Super Hi-Vision Codec

Sakaida, Shinichi; Iguchi, Kazuhisa; Nakajima, Nao; Nishida, Yukihiro; Ichigaya, A.; Nakasu, Eisuke; Kurozumi, Masaaki; Gohshi, Seiichi

doi:10.1109/icip.2007.4378881

Cited by 17 publications

(4 citation statements)

References 1 publication

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“…Particularly for SK UHDTV, a real-time transmission system based on the multiple use of the H.264 compliant HDTV encoder and decoder has been developed [5]. This approach suffers from inefficiency due to the isolated encoder control as well as unnecessary discontinuity points in the overall bitstream.…”

Section: Related Workmentioning

confidence: 99%

Development of real-time encoder for 8K ultra-high definition television

Naito

Matsumoto

2010

2010 International Symposium on Intelligent Signal Processing and Communication Systems

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SK ultra-high definition television, whose spatial resolution is S,OOO x 4,000 pixels, is expected as the next generation video application. Concerning the transmission of such high resolution video, two technical problems remain unsolved. One is unsatisfactory picture quality under the practical bit-rate such as 100 Mbps, and the other is implementation difficulty of real-time codec equipment at a practical scale. To overcome these problems, this paper proposes key coding technologies required to achieve sufficient coding performance for SK resolution at the bit-rate close to 100 Mbps. Furthermore, the distributed system architecture of a video encoder process is proposed with the actual prototype by utilizing general-purpose FPGA processors.Experimental results confirm that the developed encoder achieves up to 26% bit saving against H.264 as well as stable real-time operation of SK resolution coding.

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Section: Related Workmentioning

confidence: 99%

Development of real-time encoder for 8K ultra-high definition television

Naito

Matsumoto

2010

2010 International Symposium on Intelligent Signal Processing and Communication Systems

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“…The advance of television technologies introduces new services, such as High-Definition TV (HDTV), 3DTV, IPTV, and Smart TV. Furthermore, the requirements of audiences that is to use high-quality TV contents lead to the development of an Ultra High-Definition TV (UHDTV) [1][2][3][4][5]. The UHDTV is a digital video format that has 3840 × 2160 (4 K) or 7680 × 4320 (8 K) pixel resolutions, which are 4 or 16 times larger than 1920 × 1080 (2 K) pixel resolution of the standard full HDTV, respectively.…”

Section: Introductionmentioning

confidence: 99%

Design of Out-of-Band Protocols to Transmit UHDTV Contents in the CATV Network

Roh¹

2012

IJCNS

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The goal of an UHDTV is to broadcast digital video contents which is 16 times the pixel resolution of HDTV. As the resolution is increased, the UHDTV requires a transmission technology to support very high data transfer rate. In this paper, we propose two out-of-band protocols to transmit UHDTV contents in a CATV network: an OOB-based protocol and a DSG-based protocol. The former may be a short term solution which is well suitable for a traditional CATV network and the letter may be a long term solution which is adoptable for a CATV network equipped with DOCSIS functionalities. In order to transfer 200 Mbps UHDTV contents, proposed protocols use a channel bonding mechanism which combines several QAM channels. We propose CATV network architectures to support an UHDTV service with a channel bonding mechanism, and design the format of messages to share the information of bonded channels between a headend and a STB. We develop an OPNET simulator and ascertain successful transmission of UHDTV contents

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“…The signal redundancy in the frequency domain was included with no loss of signal quality. However, a 2-channel signal cannot be played appropriately without decoding [14]. Cheng, et al proposed the application of spatially squeezed surround audio coding (S3AC) to an Ambisonics B audio record coding system.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional audio parametric encoding based on perceptual characteristics of spatial cue1

Zhang¹,

Wang²

2015

IFS

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Abstract. Three-dimensional sound effects require a considerable number of sound channels, causing audio-visual spatial orientation sense distortion under circumstances in which the code rate is restricted by the limitation of transmission channel bandwidth and storage capacity. As a result, existing 3D audio systems are incompatible with real-time broadcasting and home theatre applications, severely limiting the application and development of 3D audio systems. By investigating the mechanism of orientation parameters perceptual redundancy, this paper studied 3D spatial orientation cue perceptual characteristics, established an orientation cue perceptual model, developed a heterogeneous quantification table accordingly, and controlled the differences between each quantified value below the quantitative value perception threshold. Using this method, only the information perceptible to the human ear was quantified and perceptual distortions were minimized. The experimental results revealed that, compared to the SLQP method, the quantified bit of the proposed method was reduced by 8.66% in low resolution and 65.23% in high resolution. In addition, the accuracy of this method was higher than that of the SLQP method, enabling better alignment with human perceptual characteristics.

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The Super Hi-Vision Codec

Cited by 17 publications

References 1 publication

Development of real-time encoder for 8K ultra-high definition television

Development of real-time encoder for 8K ultra-high definition television

Design of Out-of-Band Protocols to Transmit UHDTV Contents in the CATV Network

Three-dimensional audio parametric encoding based on perceptual characteristics of spatial cue1

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