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Recurrent+Transformer 视频恢复领域的‘德艺双馨’
2022-06-12 00:39:00 【智源社区】
本文分享论文『Recurrent Video Restoration Transformer with Guided Deformable Attention』,是 Jingyun 大佬继SwinIR,VRT之后的又一篇力作,在Transformer结构中套用了循环架构,并从帧级对齐扩展到片段对齐。RVRT在VID4上超过了VRT,在REDS4上超过了Basicvsr++!

作者单位:苏黎世联邦理工、Meta、维尔茨堡大学
论文链接:
https://arxiv.org/pdf/2206.02146.pdf
项目链接:
https://github.com/JingyunLiang/RVRT
并行恢复所有帧,它具有时间信息融合的优势,但是模型尺寸大,内存消耗大 循环逐帧恢复,它跨帧共享参数所以模型尺寸较小,但是缺乏长期建模能力和并行性
RVRT将视频分成多个片段,利用先前的片段特征来估计后续的片段特征。通过减小视频序列长度并且以更大的隐藏状态传递信息,缓解了循环网络中的信息丢失和噪声放大,还可以使模型部分并行化。
使用引导变形注意(GDA)从整个推断片段中预测多个相关位置,然后通过注意机制聚合它们的特征来进行片段间对齐。
在超分去噪去模糊的多基准数据集上实现了SOTA。
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