Poster
GenWarp: Single Image to Novel Views with Semantic-Preserving Generative Warping
Junyoung Seo · Kazumi Fukuda · Takashi Shibuya · Takuya Narihira · Naoki Murata · Shoukang Hu · Chieh-Hsin Lai · Seungryong Kim · Yuki Mitsufuji
East Exhibit Hall A-C #2503
Generating novel views from a single image remains a challenging task due to the complexity of 3D scenes and the limited diversity in the existing multi-view datasets to train a model on. Recent research combining large-scale text-to-image (T2I) models with monocular depth estimation (MDE) has shown promise in handling in-the-wild images. In these methods, an input view is geometrically warped to novel views with estimated depth maps, then the warped image is inpainted by T2I models. However, they struggle with noisy depth maps and loss of semantic details when warping an input view to novel viewpoints. In this paper, we propose a novel approach for single-shot novel view synthesis, a semantic-preserving generative warping framework that enables T2I generative models to learn where to warp and where to generate, through augmenting cross-view attention with self-attention. Our approach addresses the limitations of existing methods by conditioning the generative model on source view images and incorporating geometric warping signals. Our framework can leverage large-scale 2D diffusion models such as Stable Diffusion to inherit their generalization capabilities. Qualitative and quantitative evaluations demonstrate that our model outperforms existing methods in both in-domain and out-of-domain scenarios.
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