ReGO: Reference-Guided Outpainting for Scenery Image.
- Publisher:
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Publication Type:
- Journal Article
- Citation:
- IEEE Trans Image Process, 2024, 33, pp. 1375-1388
- Issue Date:
- 2024
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1712077.pdf | Published version | 4.34 MB |
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We present ReGO (Reference-Guided Outpainting), a new method for the task of sketch-guided image outpainting. Despite the significant progress made in producing semantically coherent content, existing outpainting methods often fail to deliver visually appealing results due to blurry textures and generative artifacts. To address these issues, ReGO leverages neighboring reference images to synthesize texture-rich results by transferring pixels from them. Specifically, an Adaptive Content Selection (ACS) module is incorporated into ReGO to facilitate pixel transfer for texture compensating of the target image. Additionally, a style ranking loss is introduced to maintain consistency in terms of style while preventing the generated part from being influenced by the reference images. ReGO is a model-agnostic learning paradigm for outpainting tasks. In our experiments, we integrate ReGO with three state-of-the-art outpainting models to evaluate its effectiveness. The results obtained on three scenery benchmarks, i.e. NS6K, NS8K and SUN Attribute, demonstrate the superior performance of ReGO compared to prior art in terms of texture richness and authenticity. Our code is available at https://github.com/wangyxxjtu/ReGO-Pytorch.
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