Inter-Intra Cross-Modality Self-Supervised Video Representation Learning by Contrastive Clustering
Jiutong Wei; Luo G(罗冠); Bing Li; Weiming Hu
2022
会议日期jun 2022
会议地点Montréal Québec
英文摘要

This paper introduces an online self-supervised method that leverages inter- and intra-level variance for video representation learning. Most existing methods tend to focus on instance-level or inter-variance encoding but ignore the intra-variance existing in clips. The key observation to solving this problem is the underlying correlation between visual and audio, in which the distribution of flow patterns in feature space is di-verse, but expresses complementary similar semantics. And in the semantic feature space, the rows of the feature matrix could be regarded as cluster labels of instances. These cluster labels should be consistent for different modalities of the same video clip. Based on this idea, we propose an end-to-end inter-intra cross-modality contrastive clustering scheme to simultaneously optimize the inter- and intra-level contrastive loss. Experiments show that our proposed approach is able to considerably outperform previous methods for self-supervised learning on HMDB51 and UCF101 when applied to video retrieval and action recognition tasks.

内容类型会议论文
源URL[http://ir.ia.ac.cn/handle/173211/47430]  
专题自动化研究所_模式识别国家重点实验室_视频内容安全团队
作者单位National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences
推荐引用方式
GB/T 7714
Jiutong Wei,Luo G,Bing Li,et al. Inter-Intra Cross-Modality Self-Supervised Video Representation Learning by Contrastive Clustering[C]. 见:. Montréal Québec. jun 2022.
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