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- Title
A Novel Adaptive Directional Interpolation Algorithm for Digital Video Resolution Enhancement.
- Authors
Sun, Dong; Xie, Qingqing; Li, Teng; Lu, Yixiang; Zhu, De; Gao, Qingwei
- Abstract
In this paper, a novel digital video resolution enhancement algorithm based on adaptive directional interpolation is proposed, where the directionality of the edge structure and the nonlocal self-similarity prior within the current frame as well as its adjacent frames are both considered. First, we establish the regularization equation that conforms to the prior model of a video frame and then take the classic bicubic interpolation result as the initial estimation to iteratively solve the restoration equation, in which the edge structures and contours in low resolution (LR) input are reconstructed to estimate and refine the desired high resolution (HR) output. Experimental results show that the proposed algorithm can effectively enhance the clarity of a video frame, with satisfying subjective visual quality and PSNR value.
- Subjects
DIGITAL video; ALGORITHMS; SELF-adaptive software; INTERPOLATION algorithms; INTERPOLATION; EQUATIONS
- Publication
Wireless Communications & Mobile Computing, 2020, p1
- ISSN
1530-8669
- Publication type
Article
- DOI
10.1155/2020/8891598