Search Results for author: Yoshimasa Nakamura

Found 3 papers, 0 papers with code

Zero-shot Degree of Ill-posedness Estimation for Active Small Object Change Detection

no code implementations10 May 2024 Koji Takeda, Kanji Tanaka, Yoshimasa Nakamura, Asako Kanezaki

To regularize this problem, we apply the conceptof self-supervised learning to achieve efficient DoI estimationscheme and investigate its generalization to diverse datasets. Specifically, we tackle the challenging issue of obtaining self-supervision cues for semantically non-distinctive unseen smallobjects and show that novel "oversegmentation cues" from openvocabulary semantic segmentation can be effectively exploited. When applied to diverse real datasets, the proposed DoI modelcan boost state-of-the-art change detection models, and it showsstable and consistent improvements when evaluated on real-world datasets.

Change Detection Self-Supervised Learning +1

Lifelong Change Detection: Continuous Domain Adaptation for Small Object Change Detection in Every Robot Navigation

no code implementations28 Jun 2023 Koji Takeda, Kanji Tanaka, Yoshimasa Nakamura

The recently emerging research area in robotics, ground view change detection, suffers from its ill-posed-ness because of visual uncertainty combined with complex nonlinear perspective projection.

Change Detection Domain Adaptation +2

Domain Invariant Siamese Attention Mask for Small Object Change Detection via Everyday Indoor Robot Navigation

no code implementations29 Mar 2022 Koji Takeda, Kanji Tanaka, Yoshimasa Nakamura

Experiments, in which an indoor robot aims to detect visually small changes in everyday navigation, demonstrate that our attention technique significantly boosts the state-of-the-art image change detection model.

Change Detection Domain Adaptation +1

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