Temporal Consistency Learning of inter-frames for Video Super-Resolution

• URL: http://arxiv.org/abs/2211.01639v1
• Date: Thu, 3 Nov 2022 08:23:57 GMT
• Title: Temporal Consistency Learning of inter-frames for Video Super-Resolution
• Authors: Meiqin Liu, Shuo Jin, Chao Yao, Chunyu Lin and Yao Zhao
• Abstract summary: Video super-resolution (VSR) is a task that aims to reconstruct high-resolution (HR) frames from the low-resolution (LR) reference frame and multiple neighboring frames. Existing methods generally explore information propagation and frame alignment to improve the performance of VSR. We propose a Temporal Consistency learning Network (TCNet) for VSR in an end-to-end manner, to enhance the consistency of the reconstructed videos.
• Score: 38.26035126565062
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video super-resolution (VSR) is a task that aims to reconstruct high-resolution (HR) frames from the low-resolution (LR) reference frame and multiple neighboring frames. The vital operation is to utilize the relative misaligned frames for the current frame reconstruction and preserve the consistency of the results. Existing methods generally explore information propagation and frame alignment to improve the performance of VSR. However, few studies focus on the temporal consistency of inter-frames. In this paper, we propose a Temporal Consistency learning Network (TCNet) for VSR in an end-to-end manner, to enhance the consistency of the reconstructed videos. A spatio-temporal stability module is designed to learn the self-alignment from inter-frames. Especially, the correlative matching is employed to exploit the spatial dependency from each frame to maintain structural stability. Moreover, a self-attention mechanism is utilized to learn the temporal correspondence to implement an adaptive warping operation for temporal consistency among multi-frames. Besides, a hybrid recurrent architecture is designed to leverage short-term and long-term information. We further present a progressive fusion module to perform a multistage fusion of spatio-temporal features. And the final reconstructed frames are refined by these fused features. Objective and subjective results of various experiments demonstrate that TCNet has superior performance on different benchmark datasets, compared to several state-of-the-art methods.

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