全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量
768

相关文章

更多...

Confidence-based adaptive frame rate up-conversion

DOI: 10.1186/1687-6180-2013-13

Keywords: Video coding, Frame rate up-conversion, Hierarchical motion estimation, Adaptive search range, Bi-directional motion estimation

Full-Text   Cite this paper   Add to My Lib

Abstract:

In this article, we propose a new frame rate up-conversion (FRU) method for temporal quality enhancement. The proposed FRU algorithm employs gradual and adaptive motion estimation based on confidence priority for selecting more accurate motion vectors (MVs). In order to estimate accurate MVs, we adaptively alternate a search range and the order of blocks to be searched depending on the confidence level in hierarchical motion estimation. The precedence of the proposed algorithm is conducted based on the confidence level that is decided by the complexity of pixel values in a block. In addition, we perform bi-directional motion compensation and spatial linear interpolation to fill occlusion regions. In our experiments, we found that the proposed algorithm is about 2 dB better than several conventional methods. Furthermore, block artifacts and blur artifacts are significantly diminished by the proposed algorithm.

Full-Text

  
  
  

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133