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40.35 Broadcasting and Communication Technologies(BCT)
Displaying 1-9 of 9 articles from this issue
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Pages Cover1-
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (111K) -
Pages Cover2-
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (86K) -
Hiromasa OKADA, Yutaka SHIBATASession ID: BCT2016-73
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSThe consideration when applying multiplexor system as LDM (Layered Division Multiplexing) to the terrestrial DTV this time, was performed. We looked for a further developed possibility of the terrestrial DTV from the angle as the existence recipient protection and the effective utilization of a frequency by using this multiplexor channel operation.View full abstractDownload PDF (584K) -
Time Domain Compressed Sensing based Channel Estimation in Fast Fading Channel with Fractional DelayRyan PADERNA, Duong Quang THANG, Yafei HOU, Takeshi HIGASHINO, Min ...Session ID: BCT2016-74
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSThis paper evaluates the performance of the proposed compressed sensing (CS) based channel estimator (CE) in fast fading channel with fractional delay. The channel impulse response (CIR) of the fast fading channel with fractional delay is changing over time where the number of impulses is dynamic resulting for the CE to be very complex. Fractional delay is a phenomenon when the receiver and transmitter have mismatch sampling which is very common in time domain CE. The simulation shows that proposed CE was able to estimate the fast fading channel with fractional delay with less error.View full abstractDownload PDF (537K) -
Shinichi SAKAIDASession ID: BCT2016-75
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESS8K/4K Super Hi-Vision (SHV) test satellite broadcasting was launched on 1st August, 2016. Highly efficient video coding technology is needed to realize the SHV broadcasting services since they have huge amounts of data. NHK has researched highly efficient video encoding schemes considering the characteristics of the SHV signals and developed several video coding devices for real-time transmission. This paper describes an overview of the developed video encoder devices, which are based on the international standardized video coding scheme. Furthermore, research activities for developing more efficient video coding technology and future plans are mentioned.View full abstractDownload PDF (561K) -
Yasuyuki NAKAJIMA, Yukikuni NISHIDA, Mitsuo IKEDA, Ken NAKAMURA, T ...Session ID: BCT2016-76
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSTo achieve high-quality 8K video services with high realistic sensation, we have developed 8K HEVC real-time encoder. The encoder divides 8K images into four slices, and four chips of the real-time encoder LSIs, each of which is capable of 4K/60P image processing, encode the divided images in parallel while transferring reference images near the border of divided images through PCIe bus. 8K real-time encoding is performed on one board, which makes the encoder’s size significantly smaller as 5U.View full abstractDownload PDF (651K) -
Kenji SUGIYAMASession ID: BCT2016-77
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSVery high resolution video system such as 4K/8K enables super close view, and, such very short distance causes significant different view in a picture. This effect is more significant in the closer viewing. Therefore, uniform coding for a picture may not be always best. To realize this matter, we have three kinds of coding control methods. The simple method is spatial filtering as the preprocessing of the coding. This method does not impact to decoding. The significant method is the conversion of image itself using the variable resampling. This method may be effective, because it can reduce the number of pixels to be coded with the expence of heavy processing power. The quantization control based on the viewing performance which gives flat sujective picture qualty on the screen may be most retional method. We compare these methods about the reductionof the bit rate inconsideration of the processing power.View full abstractDownload PDF (501K) -
Yasubumi HonmaSession ID: BCT2016-78
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESS -
Pages 26-
Published: 2016
Released on J-STAGE: September 04, 2019
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (131K)
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