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Exposing the Self-Supervised Space-Time Correspondence Learning via Graph Kernels
Qin, Zheyun1; Lu, Xiankai1; Nie, Xiushan2; Yin, Yilong1; Shen, Jianbing3
2023-06-27
Conference Name37th AAAI Conference on Artificial Intelligence, AAAI 2023
Source PublicationProceedings of the 37th AAAI Conference on Artificial Intelligence, AAAI 2023
Volume37
Pages2110-2118
Conference Date7 February 2023through 14 February 2023
Conference PlaceWashington
PublisherAAAI Press
Abstract

Self-supervised space-time correspondence learning is emerging as a promising way of leveraging unlabeled video. Currently, most methods adapt contrastive learning with mining negative samples or reconstruction adapted from the image domain, which requires dense affinity across multiple frames or optical flow constraints. Moreover, video correspondence predictive models require mining more inherent properties in videos, such as structural information. In this work, we propose the VideoHiGraph, a space-time correspondence framework based on a learnable graph kernel. Concerning the video as the spatial-temporal graph, the learning objectives of VideoHiGraph are emanated in a self-supervised manner for predicting unobserved hidden graphs via graph kernel manner. We learn a representation of the temporal coherence across frames in which pairwise similarity defines the structured hidden graph, such that a biased random walk graph kernel along the sub-graph can predict long-range correspondence. Then, we learn a refined representation across frames on the node-level via a dense graph kernel. The self-supervision of the model training is formed by the structural and temporal consistency of the graph. VideoHiGraph achieves superior performance and demonstrates its robustness across the benchmark of label propagation tasks involving objects, semantic parts, keypoints, and instances. Our algorithm implementations have been made publicly available at https://github.com/zyqin19/VideoHiGraph.

URLView the original
Language英語English
Scopus ID2-s2.0-85167697849
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Document TypeConference paper
CollectionTHE STATE KEY LABORATORY OF INTERNET OF THINGS FOR SMART CITY (UNIVERSITY OF MACAU)
Affiliation1.School of Software, Shandong University, China
2.School of Computer Science and Technology, Shandong Jianzhu University, China
3.SKL-IOTSC, CIS, University of Macau, Macao
Recommended Citation
GB/T 7714
Qin, Zheyun,Lu, Xiankai,Nie, Xiushan,et al. Exposing the Self-Supervised Space-Time Correspondence Learning via Graph Kernels[C]:AAAI Press, 2023, 2110-2118.
APA Qin, Zheyun., Lu, Xiankai., Nie, Xiushan., Yin, Yilong., & Shen, Jianbing (2023). Exposing the Self-Supervised Space-Time Correspondence Learning via Graph Kernels. Proceedings of the 37th AAAI Conference on Artificial Intelligence, AAAI 2023, 37, 2110-2118.
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