Textual Inversion and Self-supervised Refinement for Radiology Report Generation

• URL: http://arxiv.org/abs/2405.20607v2
• Date: Thu, 6 Jun 2024 07:51:34 GMT
• Title: Textual Inversion and Self-supervised Refinement for Radiology Report Generation
• Authors: Yuanjiang Luo, Hongxiang Li, Xuan Wu, Meng Cao, Xiaoshuang Huang, Zhihong Zhu, Peixi Liao, Hu Chen, Yi Zhang,
• Abstract summary: We propose Textual Inversion and Self-supervised Refinement (TISR) for generating radiology reports. TISR projects text and image into the same space by representing images as pseudo words to eliminate the cross-modeling gap. We conduct experiments on two widely-used public datasets and achieve significant improvements on various baselines.
• Score: 25.779160968864435
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Existing mainstream approaches follow the encoder-decoder paradigm for generating radiology reports. They focus on improving the network structure of encoders and decoders, which leads to two shortcomings: overlooking the modality gap and ignoring report content constraints. In this paper, we proposed Textual Inversion and Self-supervised Refinement (TISR) to address the above two issues. Specifically, textual inversion can project text and image into the same space by representing images as pseudo words to eliminate the cross-modeling gap. Subsequently, self-supervised refinement refines these pseudo words through contrastive loss computation between images and texts, enhancing the fidelity of generated reports to images. Notably, TISR is orthogonal to most existing methods, plug-and-play. We conduct experiments on two widely-used public datasets and achieve significant improvements on various baselines, which demonstrates the effectiveness and generalization of TISR. The code will be available soon.

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