Image-Text Co-Decomposition for Text-Supervised Semantic Segmentation
<|reference_start|>Image-Text Co-Decomposition for Text-Supervised Semantic Segmentation: This paper addresses text-supervised semantic segmentation, aiming to learn a model capable of segmenting arbitrary visual concepts within images by using only image-text pairs without dense annotations. Existing methods have demonstrated that contrastive learning on image-text pairs effectively aligns visual segments with the meanings of texts. We notice that there is a discrepancy between text alignment and semantic segmentation: A text often consists of multiple semantic concepts, whereas semantic segmentation strives to create semantically homogeneous segments. To address this issue, we propose a novel framework, Image-Text Co-Decomposition (CoDe), where the paired image and text are jointly decomposed into a set of image regions and a set of word segments, respectively, and contrastive learning is developed to enforce region-word alignment. To work with a vision-language model, we present a prompt learning mechanism that derives an extra representation to highlight an image segment or a word segment of interest, with which more effective features can be extracted from that segment. Comprehensive experimental results demonstrate that our method performs favorably against existing text-supervised semantic segmentation methods on six benchmark datasets.<|reference_end|>
@article{wu2024image-text,
    title={Image-Text Co-Decomposition for Text-Supervised Semantic Segmentation},
    author={Ji-Jia Wu, Andy Chia-Hao Chang, Chieh-Yu Chuang, Chun-Pei Chen, Yu-Lun
  Liu, Min-Hung Chen, Hou-Ning Hu, Yung-Yu Chuang, Yen-Yu Lin},
    journal={arXiv preprint arXiv:2404.04231},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.04231},
    primaryClass={cs.CV}
}