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Weakly Supervised Instance Segmentation using Motion Information via Optical Flow

2022-02-25 22:41:54
Jun Ikeda, Junichiro Mori

Abstract

Weakly supervised instance segmentation has gained popularity because it reduces high annotation cost of pixel-level masks required for model training. Recent approaches for weakly supervised instance segmentation detect and segment objects using appearance information obtained from a static image. However, it poses the challenge of identifying objects with a non-discriminatory appearance. In this study, we address this problem by using motion information from image sequences. We propose a two-stream encoder that leverages appearance and motion features extracted from images and optical flows. Additionally, we propose a novel pairwise loss that considers both appearance and motion information to supervise segmentation. We conducted extensive evaluations on the YouTube-VIS 2019 benchmark dataset. Our results demonstrate that the proposed method improves the Average Precision of the state-of-the-art method by 3.1.

Abstract (translated)

URL

https://arxiv.org/abs/2202.13006

PDF

https://arxiv.org/pdf/2202.13006.pdf


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