MAND: Modality-Aware Novelty Detection for Open-World Egocentric Activity Recognition 文章

ArXiv CS.CV2026-06-16NEWSen作者: Hyejeong Im, Wonseon Lim, Dae-Won Kim

详细信息

来源站点
ArXiv CS.CV
作者
Hyejeong Im, Wonseon Lim, Dae-Won Kim
文章类型
NEWS
语言
en
发布日期
2026-06-16

摘要

arXiv:2603.16970v2 Announce Type: replace Abstract: Multimodal egocentric activity recognition integrates visual and inertial cues for robust first-person behavior understanding. However, deploying such systems in open-world environments requires detecting novel activities while continuously learning from non-stationary data streams. Existing methods rely on the main fused logits for novelty scoring, without fully exploiting the complementary evidence available from individual modalities. Because these logits are often dominated by RGB, cues from other modalities, particularly IMU, remain underutilized, and this imbalance worsens as catastrophic forgetting accumulates. To address this, we propose MAND, a modality-aware framework for multimodal egocentric open-world continual learning. At inference, Modality-aware Adaptive Scoring (MoAS) adaptively adjusts modality contributions using sample-wise reliability and refines novelty scoring with deviation and disagreement penalties.

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