Cameras as Rays: Pose Estimation via Ray Diffusion Article Swipe
Jason Zhang
,
Amy Lin
,
Moneish Kumar
,
Tzu-Hsuan Yang
,
Deva Ramanan
,
Shubham Tulsiani
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2402.14817
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2402.14817
Estimating camera poses is a fundamental task for 3D reconstruction and remains challenging given sparsely sampled views (<10). In contrast to existing approaches that pursue top-down prediction of global parametrizations of camera extrinsics, we propose a distributed representation of camera pose that treats a camera as a bundle of rays. This representation allows for a tight coupling with spatial image features improving pose precision. We observe that this representation is naturally suited for set-level transformers and develop a regression-based approach that maps image patches to corresponding rays. To capture the inherent uncertainties in sparse-view pose inference, we adapt this approach to learn a denoising diffusion model which allows us to sample plausible modes while improving performance. Our proposed methods, both regression- and diffusion-based, demonstrate state-of-the-art performance on camera pose estimation on CO3D while generalizing to unseen object categories and in-the-wild captures.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2402.14817
- https://arxiv.org/pdf/2402.14817
- OA Status
- green
- Cited By
- 3
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4392122026
All OpenAlex metadata
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https://openalex.org/W4392122026Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2402.14817Digital Object Identifier
- Title
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Cameras as Rays: Pose Estimation via Ray DiffusionWork title
- Type
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preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-02-22Full publication date if available
- Authors
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Jason Zhang, Amy Lin, Moneish Kumar, Tzu-Hsuan Yang, Deva Ramanan, Shubham TulsianiList of authors in order
- Landing page
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https://arxiv.org/abs/2402.14817Publisher landing page
- PDF URL
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https://arxiv.org/pdf/2402.14817Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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greenOpen access status per OpenAlex
- OA URL
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https://arxiv.org/pdf/2402.14817Direct OA link when available
- Concepts
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Diffusion, Pose, Estimation, Computer science, Artificial intelligence, Computer vision, Computer graphics (images), Physics, Economics, Management, ThermodynamicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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3Total citation count in OpenAlex
- Citations by year (recent)
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2025: 2, 2024: 1Per-year citation counts (last 5 years)
- Related works (count)
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10Other works algorithmically related by OpenAlex
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