A study of subjective quality assessment of temporal sub-sampling algorithm for high frame-rate video

DOI Web Site Web Site Web Site 20 References

Bibliographic Information

Other Title
  • 高フレームレート映像向け時間方向サブサンプリング法に対する主観画質評価(ライフログ活用技術,オフィス情報システム,マルチメディアシステム,マルチメディア通信,IP放送/映像伝送,一般)
  • 高フレームレート映像向け時間方向サブサンプリング法に対する主観画質評価
  • コウフレームレート エイゾウ ムケ ジカン ホウコウ サブサンプリングホウ ニ タイスル シュカンガシツ ヒョウカ

Search this article

Abstract

Over the past decade video acquisition rate has brokenthrough over 1000[Hz]. Current display systems, unfortunately, have a maximum frame-rate about 60[frames/sec]. The display systems are definitely slower than the camera system. When a high frame-rate video (over 1000[frames/sec]) is played in real time, however, it is necessary to down-sample the frame-rate of the video. Such video has many frames around the "constant interval" sub-sampled frame that do not yield jerky motion since the optical flow field displacement within the frames is too small to be perceived. In other words, constant frame interval is not always needed when down-sampling high frame-rate video. Relaxing the interval requirement allows greater flexibility in selecting the frames to be sub-sampled, which allows the number of bits in a sub-sampled sequence to be reduced. When we relax the interval requirement, it is important to realize the same subjective image quality as sequence sub-sampled with constant interval. In this paper, we evaluate the relationship between the subjective quality of sequence sub-sampled with variable interval and the deviation from constant interval. We clarify the permissible deviation from constant interval subject to realizing the same subjective image quality.

Journal

  • ITE Technical Report

    ITE Technical Report 33.37 (0), 11-15, 2009

    The Institute of Image Information and Television Engineers

References(20)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top