SemST: Semantically Consistent Multi-Scale Image Translation via Structure-Texture Alignment

• URL: http://arxiv.org/abs/2310.04995v1
• Date: Sun, 8 Oct 2023 03:44:58 GMT
• Title: SemST: Semantically Consistent Multi-Scale Image Translation via Structure-Texture Alignment
• Authors: Ganning Zhao, Wenhui Cui, Suya You and C.-C. Jay Kuo
• Abstract summary: Unsupervised image-to-image (I2I) translation learns cross-domain image mapping that transfers input from the source domain to output in the target domain. Different semantic statistics in source and target domains result in content discrepancy known as semantic distortion. A novel I2I method that maintains semantic consistency in translation is proposed and named SemST in this work.
• Score: 32.41465452443824
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Unsupervised image-to-image (I2I) translation learns cross-domain image mapping that transfers input from the source domain to output in the target domain while preserving its semantics. One challenge is that different semantic statistics in source and target domains result in content discrepancy known as semantic distortion. To address this problem, a novel I2I method that maintains semantic consistency in translation is proposed and named SemST in this work. SemST reduces semantic distortion by employing contrastive learning and aligning the structural and textural properties of input and output by maximizing their mutual information. Furthermore, a multi-scale approach is introduced to enhance translation performance, thereby enabling the applicability of SemST to domain adaptation in high-resolution images. Experiments show that SemST effectively mitigates semantic distortion and achieves state-of-the-art performance. Also, the application of SemST to domain adaptation (DA) is explored. It is demonstrated by preliminary experiments that SemST can be utilized as a beneficial pre-training for the semantic segmentation task.

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