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Increasing Space-Time Resolution in Video

机译:增加视频中的时空分辨率

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We propose a method for constructing a video sequence of high space-time resolution by combining information from multiple low-resolution video sequences of the same dynamic scene. Super-resolution is performed simultaneously in time and in space. By "temporal super-resolution" we mean recovering rapid dynamic events that occur faster than regular frame-rate. Such dynamic events are not visible (or else observed incorrectly) in any of the input sequences, even if these are played in "slow-motion". The spatial and temporal dimensions are very different in nature, yet are inter-related. This leads to interesting visual tradeoffs in time and space, and to new video applications. These include: (i) treatment of spatial artifacts (e.g., motion-blur) by increasing the temporal resolution, and (ii) combination of input sequences of different space-time resolutions (e.g, NTSC, PAL, and even high quality still images) to generate a high quality video sequence.
机译:我们提出了一种通过组合来自相同动态场景的多个低分辨率视频序列的信息来构造高空时间分辨率的视频序列。超级分辨率在时间和空间中同时执行。通过“时间超分辨率”,我们的意思是恢复比常规帧速率更快的快速动态事件。即使它们以“慢动作”播放,此类动态事件在任何输入序列中都不可见(或者错误地观察)。空间和时间尺寸本质上是非常不同的,但与间相互关系。这导致有趣的视觉权衡,以及新的视频应用。这些包括:(i)通过增加时间分辨率和(ii)不同时分分辨率的输入序列的组合(例如,NTSC,PAL,甚至高质量静止图像,处理空间伪影(例如运动模糊)的处理)生成高质量的视频序列。

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