Image segmentation approach for realizing zoomable streaming HEVC video

Yuri Umezaki, Satoshi Goto

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

With the popularity of mobile devices such as mobile phones and cameras, zooming and displaying an arbitrary region of interest (ROI) from a high-resolution video has gained considerable importance. In this study, we implement two methods - partial decoding and tiled encoding - for ROI-based streaming in High Efficiency Video Coding (HEVC). In partial decoding, only the ROI and dependence area are decoded; this approach reduces the calculation cost. In tiled encoding, video frames are split into a grid of tiles, each of which is encoded independently; this approach requires a compatible decoder, and it reduces the streaming bitrate and decoding calculation cost. We evaluated these two methods in terms of the decoding calculation cost, bandwidth efficiency, and video quality. Experimental results show that partial decoding reduced the decoding calculation cost by 35-55%. Tiled encoding showed optimal decoding calculation cost and bandwidth efficiency for a tile size of 128 pixels.

本文言語English
ホスト出版物のタイトルICICS 2013 - Conference Guide of the 9th International Conference on Information, Communications and Signal Processing
出版社IEEE Computer Society
DOI
出版ステータスPublished - 2013
イベント9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan
継続期間: 2013 12月 102013 12月 13

Other

Other9th International Conference on Information, Communications and Signal Processing, ICICS 2013
CityTainan
Period13/12/1013/12/13

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 情報システム
  • 信号処理

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