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- W4298293108 abstract "The FlowNet demonstrated that optical flow estimation can be cast as a learning problem. However, the state of the art with regard to the quality of the flow has still been defined by traditional methods. Particularly on small displacements and real-world data, FlowNet cannot compete with variational methods. In this paper, we advance the concept of end-to-end learning of optical flow and make it work really well. The large improvements in quality and speed are caused by three major contributions: first, we focus on the training data and show that the schedule of presenting data during training is very important. Second, we develop a stacked architecture that includes warping of the second image with intermediate optical flow. Third, we elaborate on small displacements by introducing a sub-network specializing on small motions. FlowNet 2.0 is only marginally slower than the original FlowNet but decreases the estimation error by more than 50%. It performs on par with state-of-the-art methods, while running at interactive frame rates. Moreover, we present faster variants that allow optical flow computation at up to 140fps with accuracy matching the original FlowNet." @default.
- W4298293108 created "2022-10-01" @default.
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- W4298293108 date "2016-12-06" @default.
- W4298293108 modified "2023-09-29" @default.
- W4298293108 title "FlowNet 2.0: Evolution of Optical Flow Estimation with Deep Networks" @default.
- W4298293108 doi "https://doi.org/10.48550/arxiv.1612.01925" @default.
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