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20 April 2024 |
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Article overview
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Pixel is All You Need: Adversarial Trajectory-Ensemble Active Learning for Salient Object Detection | | Zhenyu Wu
; Lin Wang
; Wei Wang
; Qing Xia
; Chenglizhao Chen
; Aimin Hao
; Shuo Li
; | | Date: |
13 Dec 2022 | | Abstract: | Although weakly-supervised techniques can reduce the labeling effort, it is
unclear whether a saliency model trained with weakly-supervised data (e.g.,
point annotation) can achieve the equivalent performance of its
fully-supervised version. This paper attempts to answer this unexplored
question by proving a hypothesis: there is a point-labeled dataset where
saliency models trained on it can achieve equivalent performance when trained
on the densely annotated dataset. To prove this conjecture, we proposed a novel
yet effective adversarial trajectory-ensemble active learning (ATAL). Our
contributions are three-fold: 1) Our proposed adversarial attack triggering
uncertainty can conquer the overconfidence of existing active learning methods
and accurately locate these uncertain pixels. {2)} Our proposed
trajectory-ensemble uncertainty estimation method maintains the advantages of
the ensemble networks while significantly reducing the computational cost. {3)}
Our proposed relationship-aware diversity sampling algorithm can conquer
oversampling while boosting performance. Experimental results show that our
ATAL can find such a point-labeled dataset, where a saliency model trained on
it obtained $97\%$ -- $99\%$ performance of its fully-supervised version with
only ten annotated points per image. | | Source: | arXiv, 2212.06493 | | Services: | Forum | Review | PDF | Favorites | |
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