Frequency Domain Image Translation: More Photo-realistic, Better Identity-preserving

• URL: http://arxiv.org/abs/2011.13611v3
• Date: Thu, 5 Aug 2021 03:33:15 GMT
• Title: Frequency Domain Image Translation: More Photo-realistic, Better Identity-preserving
• Authors: Mu Cai, Hong Zhang, Huijuan Huang, Qichuan Geng, Yixuan Li, Gao Huang
• Abstract summary: We propose a novel frequency domain image translation framework, exploiting frequency information for enhancing the image generation process. Our key idea is to decompose the image into low-frequency and high-frequency components, where the high-frequency feature captures object structure akin to the identity. Extensive experiments and ablations show that FDIT effectively preserves the identity of the source image, and produces photo-realistic images.
• Score: 36.606114597585396
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Image-to-image translation has been revolutionized with GAN-based methods. However, existing methods lack the ability to preserve the identity of the source domain. As a result, synthesized images can often over-adapt to the reference domain, losing important structural characteristics and suffering from suboptimal visual quality. To solve these challenges, we propose a novel frequency domain image translation (FDIT) framework, exploiting frequency information for enhancing the image generation process. Our key idea is to decompose the image into low-frequency and high-frequency components, where the high-frequency feature captures object structure akin to the identity. Our training objective facilitates the preservation of frequency information in both pixel space and Fourier spectral space. We broadly evaluate FDIT across five large-scale datasets and multiple tasks including image translation and GAN inversion. Extensive experiments and ablations show that FDIT effectively preserves the identity of the source image, and produces photo-realistic images. FDIT establishes state-of-the-art performance, reducing the average FID score by 5.6% compared to the previous best method.

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