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- W4312868686 abstract "Deep networks have been shown to suffer from catastrophic forgetting. In this work, we try to alleviate this phenomenon in the field of continual semantic segmentation (CSS). We observe that two main problems lie in existing arts. First, attention is only paid to designing constraints for encoder (i.e., the backbone of segmentation network) or output probabilities. But we find that forgetting also happens in the decoder head and harms the performance greatly. Second, old and new knowledge are entangled in intermediate features when learning new categories, making existing practices hard to balance between plasticity and stability. On these bases, we propose a framework driven by two novel constraints to address the aforementioned problems. First, a structure preserving loss is applied to the decoder’s output to maintain the discriminative power of old classes from two different granularities in embedding space. Second, a feature projection module is adopted to disentangle the process of preserving old knowledge from learning new classes. Extensive evaluations on VOC2012 and ADE20K datasets show the effectiveness of our approach, which significantly outperforms existing state-of-the-art CSS methods." @default.
- W4312868686 created "2023-01-05" @default.
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- W4312868686 date "2022-01-01" @default.
- W4312868686 modified "2023-10-05" @default.
- W4312868686 title "Continual Semantic Segmentation via Structure Preserving and Projected Feature Alignment" @default.
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- W4312868686 doi "https://doi.org/10.1007/978-3-031-19818-2_20" @default.
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