SwinStyleformer is a favorable choice for image inversion

• URL: http://arxiv.org/abs/2406.13153v1
• Date: Wed, 19 Jun 2024 02:08:45 GMT
• Title: SwinStyleformer is a favorable choice for image inversion
• Authors: Jiawei Mao, Guangyi Zhao, Xuesong Yin, Yuanqi Chang,
• Abstract summary: This paper proposes the first pure Transformer structure inversion network called SwinStyleformer. Experiments found that the inversion network with the Transformer backbone could not successfully invert the image.
• Score: 2.8115030277940947
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper proposes the first pure Transformer structure inversion network called SwinStyleformer, which can compensate for the shortcomings of the CNNs inversion framework by handling long-range dependencies and learning the global structure of objects. Experiments found that the inversion network with the Transformer backbone could not successfully invert the image. The above phenomena arise from the differences between CNNs and Transformers, such as the self-attention weights favoring image structure ignoring image details compared to convolution, the lack of multi-scale properties of Transformer, and the distribution differences between the latent code extracted by the Transformer and the StyleGAN style vector. To address these differences, we employ the Swin Transformer with a smaller window size as the backbone of the SwinStyleformer to enhance the local detail of the inversion image. Meanwhile, we design a Transformer block based on learnable queries. Compared to the self-attention transformer block, the Transformer block based on learnable queries provides greater adaptability and flexibility, enabling the model to update the attention weights according to specific tasks. Thus, the inversion focus is not limited to the image structure. To further introduce multi-scale properties, we design multi-scale connections in the extraction of feature maps. Multi-scale connections allow the model to gain a comprehensive understanding of the image to avoid loss of detail due to global modeling. Moreover, we propose an inversion discriminator and distribution alignment loss to minimize the distribution differences. Based on the above designs, our SwinStyleformer successfully solves the Transformer's inversion failure issue and demonstrates SOTA performance in image inversion and several related vision tasks.

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