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- W2963598128 abstract "Videos contain highly redundant information between frames. Such redundancy has been studied extensively in video compression and encoding, but is less explored for more advanced video processing. In this paper, we propose a learnable unified framework for propagating a variety of visual properties of video images, including but not limited to color, high dynamic range (HDR), and segmentation mask, where the properties are available for only a few key-frames. Our approach is based on a temporal propagation network (TPN), which models the transition-related affinity between a pair of frames in a purely data-driven manner. We theoretically prove two essential properties of TPN: (a) by regularizing the global transformation matrix as orthogonal, the “style energy” of the property can be well preserved during propagation; and (b) such regularization can be achieved by the proposed switchable TPN with bi-directional training on pairs of frames. We apply the switchable TPN to three tasks: colorizing a gray-scale video based on a few colored key-frames, generating an HDR video from a low dynamic range (LDR) video and a few HDR frames, and propagating a segmentation mask from the first frame in videos. Experimental results show that our approach is significantly more accurate and efficient than the state-of-the-art methods." @default.
- W2963598128 created "2019-07-30" @default.
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- W2963598128 date "2018-01-01" @default.
- W2963598128 modified "2023-09-30" @default.
- W2963598128 title "Switchable Temporal Propagation Network" @default.
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- W2963598128 doi "https://doi.org/10.1007/978-3-030-01234-2_6" @default.
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