Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)
- 2019.11a
- /
- Pages.194-195
- /
- 2019
Frequency Adaptive Hard-Decision Quantization for Video Coding
영상 부호화를 위한 주파수 적응형 경판정 양자화
- Xu, Motong (Sungkyunkwan University) ;
- Jeon, Byeungwoo (Sungkyunkwan University)
- ;
- 전병우 (성균관대학교)
- Published : 2019.11.29
Abstract
In this paper, we propose a frequency location adaptive hard-decision quantization (HDQ) scheme for video coding. A threshold for zero quantized level is adaptively applied to unquantized transform coefficients based on its frequency location in the transform domain. The proposed method achieves an average of 1.13%, 1.57%, and 1.53% of bit-rate reduction in BDBR sense compared to the conventional HDQ scheme respectively in Y, Cb, and Cr under the all intra encoding configuration.
Keywords