Spatiotemporal super-resolution reconstruction based on robust optical flow and Zernike moment for video sequences
type: Item
instance of: scholarly article
title: Spatiotemporal super-resolution reconstruction based on robust optical flow and Zernike moment for video sequences
zbMATH Open document ID: 1299.68196
author: Meiyu Liang
author: Junping Du
author: Honggang Liu
published in: Mathematical Problems in Engineering
publication date: 2014-11-24T00:00:00Z
review text: Summary: In order to improve the spatiotemporal resolution of the video sequences, a novel spatiotemporal super-resolution reconstruction model (STSR) based on robust optical flow and Zernike moment is proposed in this paper, which integrates the spatial resolution reconstruction and temporal resolution reconstruction into a unified framework. The model does not rely on accurate estimation of subpixel motion and is robust to noise and rotation. Moreover, it can effectively overcome the problems of hole and block artifacts. First we propose an efficient robust optical flow motion estimation model based on motion details preserving, then we introduce the biweighted fusion strategy to implement the spatiotemporal motion compensation. Next, combining the self-adaptive region correlation judgment strategy, we construct a fast fuzzy registration scheme based on Zernike moment for better STSR with higher efficiency, and then the final video sequences with high spatiotemporal resolution can be obtained by fusion of the complementary and redundant information with nonlocal self-similarity between the adjacent video frames. Experimental results demonstrate that the proposed method outperforms the existing methods in terms of both subjective visual and objective quantitative evaluations.
Mathematics Subject Classification ID: 68U05
Mathematics Subject Classification ID: 68T10
Mathematics Subject Classification ID: 68T20
zbMATH DE Number: 6372622
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 6372622