DeblurDiNAT: A Generalizable Transformer for Perceptual Image Deblurring

• URL: http://arxiv.org/abs/2403.13163v4
• Date: Mon, 04 Nov 2024 22:45:50 GMT
• Title: DeblurDiNAT: A Generalizable Transformer for Perceptual Image Deblurring
• Authors: Hanzhou Liu, Binghan Li, Chengkai Liu, Mi Lu,
• Abstract summary: DeblurDiNAT is a generalizable and efficient encoder-decoder Transformer which restores clean images visually close to the ground truth. We present a linear feed-forward network and a non-linear dual-stage feature fusion module for faster feature propagation across the network.
• Score: 1.5124439914522694
• License:
• Abstract: Although prior state-of-the-art (SOTA) deblurring networks achieve high metric scores on synthetic datasets, there are two challenges which prevent them from perceptual image deblurring. First, a deblurring model overtrained on synthetic datasets may collapse in a broad range of unseen real-world scenarios. Second, the conventional metrics PSNR and SSIM may not correctly reflect the perceptual quality observed by human eyes. To this end, we propose DeblurDiNAT, a generalizable and efficient encoder-decoder Transformer which restores clean images visually close to the ground truth. We adopt an alternating dilation factor structure to capture local and global blur patterns. We propose a local cross-channel learner to assist self-attention layers to learn short-range cross-channel relationships. In addition, we present a linear feed-forward network and a non-linear dual-stage feature fusion module for faster feature propagation across the network. Compared to nearest competitors, our model demonstrates the strongest generalization ability and achieves the best perceptual quality on mainstream image deblurring datasets with 3%-68% fewer parameters.

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