Search Results for author: Qinying Liu

Found 6 papers, 4 papers with code

Revisiting Foreground and Background Separation in Weakly-supervised Temporal Action Localization: A Clustering-based Approach

1 code implementation ICCV 2023 Qinying Liu, Zilei Wang, Shenghai Rong, Junjie Li, Yixin Zhang

It comprises two core components: a snippet clustering component that groups the snippets into multiple latent clusters and a cluster classification component that further classifies the cluster as foreground or background.

Classification Clustering +4

Improve Temporal Action Proposals using Hierarchical Context

no code implementations Pattern Recognition 2023 Qinying Liu, Zilei Wang, Shenghai Rong

In this paper, we propose a novel hierarchical context network (HCN) to further explore the snippet-level and proposal-level contexts, which are used to improve the representations of snippets and proposals, respectively.

Action Detection Temporal Action Proposal Generation

Collaborating Domain-shared and Target-specific Feature Clustering for Cross-domain 3D Action Recognition

1 code implementation20 Jul 2022 Qinying Liu, Zilei Wang

Furthermore, to leverage the complementarity of domain-shared features and target-specific features, we propose a novel collaborative clustering strategy to enforce pair-wise relationship consistency between the two branches.

Clustering Contrastive Learning +6

Unleashing the Potential of Adjacent Snippets for Weakly-supervised Temporal Action Localization

1 code implementation1 May 2022 Qinying Liu, Zilei Wang, Ruoxi Chen, Zhilin Li

C$^3$BN consists of two key ingredients: a micro data augmentation strategy that increases the diversity in-between adjacent snippets by convex combination of adjacent snippets, and a macro-micro consistency regularization that enforces the model to be invariant to the transformations~\textit{w. r. t.}

Data Augmentation Video Classification +3

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