An adaptive hash-based search for integer motion estimation in SCC

• Choi Youngkyu

  Department of Electrical and Computer Engineering, Seoul National University

• Lee Hyuk-Jae

  Department of Electrical and Computer Engineering, Seoul National University

• Chae Soo-Ik

  Department of Electrical and Computer Engineering, Seoul National University

抄録

As a new approach to finding integer motion vectors in SCC, hash-based searches have been proposed recently. In the paper we propose an improved search algorithm for integer motion estimation (IME) that employs hash-based search only for 8 × 8 coding units (CUs) and bottom-up search for larger CUs. Furthermore, it updates the hash function and hash table for each CTU to improve coding efficiency and reduce search complexity. According to simulation results, the proposed algorithm provides similar or better coding performance for screen contents while keeping the complexity at a lower level and constant compared with the reference algorithms.

収録刊行物

• IEICE Electronics Express

  IEICE Electronics Express 16 (1), 20181019-20181019, 2019

  一般社団法人 電子情報通信学会

キーワード

• screen contents coding (SCC)
• integer motion estimation (IME)
• hash-based search
• adaptive hash function

詳細情報

• CRID: 1390001288107677056
• NII論文ID: 130007555312
• DOI: 10.1587/elex.15.20181019
• ISSN: 13492543
• Web Site: https://www.jstage.jst.go.jp/article/elex/16/1/16_15.20181019/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可