著者

井口 和久 市ヶ谷 敦郎 杉藤 泰子 関口 俊一 本山 信明

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会年次大会講演予稿集 2013 (ISSN:13431846)

巻号頁・発行日

pp.17-4-1-_17-4-2_, 2013-08-28 (Released:2017-05-24)

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This report describes the subjective evaluation of the HEVC encoder for Hi-Vision. The encoder is developed for the purpose of communicating and reporting with limited bandwidth in case of a disaster. The subjective evaluation suggests that the image quality of developed HEVC encoder is approximately equal to the image quality coded by an AVC encoder for broadcasting, which is set to twice the level of the bitrates of HEVC.

著者

本山 信明 日和佐 憲道 原田 亞矢子 松田 幸成 坂手 寛治 宮野鼻 晃士 猪股 英樹

出版者

The Institute of Image Information and Television Engineers

雑誌

映像情報メディア学会誌 : 映像情報メディア = The journal of the Institute of Image Information and Television Engineers (ISSN:13426907)

巻号頁・発行日

vol.63, no.12, pp.1860-1867, 2009-12-01

参考文献数

10

被引用文献数

1

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We have developed a single-chip HDTV encoder LSI for H.264/AVC High422P@L4.1 that is optimized for broadcasting transport systems. Significant bit-rate reduction around 50% or more relative to MPEG-2 can be achieved by originally developed motion vector coding algorithm and subjective quality enhancement through adaptive bit allocation considering human visual system. It also enables low-delay encoder implementation with at shortest 50ms encoding delay, with advanced coding control that optimizes the balance of buffering delay and coded image quality as well as variable delay time control mechanism. We adopt a hierarchical multi-CPU framework and CPU interface those enable flexible encoder control per GOP/Picture/MB, to realize various image quality and encoding delay adjustments. This LSI is fabricated in a 90-nm CMOS process and can be integrated in a 9x9 mm² chip.