Visually Consistent Hierarchical Image Classification
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916693375188992 |
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| author | Park, Seulki Zhang, Youren Yu, Stella X. Beery, Sara Huang, Jonathan |
| author_facet | Park, Seulki Zhang, Youren Yu, Stella X. Beery, Sara Huang, Jonathan |
| contents | Hierarchical classification predicts labels across multiple levels of a taxonomy, e.g., from coarse-level 'Bird' to mid-level 'Hummingbird' to fine-level 'Green hermit', allowing flexible recognition under varying visual conditions. It is commonly framed as multiple single-level tasks, but each level may rely on different visual cues: Distinguishing 'Bird' from 'Plant' relies on global features like feathers or leaves, while separating 'Anna's hummingbird' from 'Green hermit' requires local details such as head coloration. Prior methods improve accuracy using external semantic supervision, but such statistical learning criteria fail to ensure consistent visual grounding at test time, resulting in incorrect hierarchical classification. We propose, for the first time, to enforce internal visual consistency by aligning fine-to-coarse predictions through intra-image segmentation. Our method outperforms zero-shot CLIP and state-of-the-art baselines on hierarchical classification benchmarks, achieving both higher accuracy and more consistent predictions. It also improves internal image segmentation without requiring pixel-level annotations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_11608 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Visually Consistent Hierarchical Image Classification Park, Seulki Zhang, Youren Yu, Stella X. Beery, Sara Huang, Jonathan Computer Vision and Pattern Recognition Hierarchical classification predicts labels across multiple levels of a taxonomy, e.g., from coarse-level 'Bird' to mid-level 'Hummingbird' to fine-level 'Green hermit', allowing flexible recognition under varying visual conditions. It is commonly framed as multiple single-level tasks, but each level may rely on different visual cues: Distinguishing 'Bird' from 'Plant' relies on global features like feathers or leaves, while separating 'Anna's hummingbird' from 'Green hermit' requires local details such as head coloration. Prior methods improve accuracy using external semantic supervision, but such statistical learning criteria fail to ensure consistent visual grounding at test time, resulting in incorrect hierarchical classification. We propose, for the first time, to enforce internal visual consistency by aligning fine-to-coarse predictions through intra-image segmentation. Our method outperforms zero-shot CLIP and state-of-the-art baselines on hierarchical classification benchmarks, achieving both higher accuracy and more consistent predictions. It also improves internal image segmentation without requiring pixel-level annotations. |
| title | Visually Consistent Hierarchical Image Classification |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2406.11608 |