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Context graph based video frame prediction using locally guided objective
Prateep S. Bhattacharjee,
Published in Springer Verlag
2019
Volume: 11131 LNCS
   
Pages: 169 - 185
Abstract
This paper proposes a feature reconstruction based approach using pixel-graph and Generative Adversarial Networks (GAN) for solving the problem of synthesizing future frames from video scenes. Recent methods of frame synthesis often generate blurry outcomes in case of long-range prediction and scenes involving multiple objects moving at different velocities due to their holistic approach. Our proposed method introduces a novel pixel-graph based context aggregation layer (PixGraph) which efficiently captures long range dependencies. PixGraph incorporates a weighting scheme through which the internal features of each pixel (or a group of neighboring pixels) can be modeled independently of the others, thus handling the issue of separate objects moving in different directions and with very dissimilar speed. We also introduce a novel objective function, the Locally Guided Gram Loss (LGGL), which aides the GAN based model to maximize the similarity between the intermediate features of the ground-truth and the network output by constructing Gram matrices from locally extracted patches over several levels of the generator. Our proposed model is end-to-end trainable and exhibits superior performance compared to the state-of-the-art on four real-world benchmark video datasets. © Springer Nature Switzerland AG 2019.
About the journal
JournalData powered by TypesetLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
PublisherData powered by TypesetSpringer Verlag
ISSN03029743
Open AccessNo
Concepts (12)
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    Benchmarking
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    Computer vision
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    Graphic methods
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    ADVERSARIAL NETWORKS
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    FEATURE RECONSTRUCTION
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    Holistic approach
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    INTERNAL FEATURES
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    LONG RANGE PREDICTION
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    LONG-RANGE DEPENDENCIES
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    MULTIPLE OBJECTS
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    Objective functions
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    Pixels