Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Reducing Motion Coding Overhead for Long-term Global Motion Compensation

장기전역움직임보상을 위한 움직임정보 오버헤드감소방법

  • Huu, Thuc Nguyen (Department of Electrical and Computer Engineering Sungkyunkwan University) ;
  • Jeon, Byeungwoo (Department of Electrical and Computer Engineering Sungkyunkwan University)
  • ;
  • 전병우 (성균관대학교 전자전기컴퓨터공학과)
  • Published : 2019.11.29
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Abstract

Long-term global motion compensation (LT-GMC) was designed to compensate camera motion effectively. The LT-GMC warps a reference picture according to an estimated affine/homography model and stores it in its decoded picture buffer for long-term reference. Most previous works on LT-GMC have focused on improving quality of the warped picture, however, there has been only little consideration on the overhead of its motion coding. In this paper, we address this problem and propose a method, namely Scaling Predictor, to reduce the motion coding overhead for LT-GMC. Our experiment has shown BD-Rate reduction of 1.40% over conventional LT-GMC scheme by applying the proposed method.

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