Publications by authors named "Iro Laina"

Most of us are not experts in specific fields, such as ornithology. Nonetheless, we do have general image and language understanding capabilities that we use to match what we see to expert resources. This allows us to expand our knowledge and perform novel tasks without ad-hoc external supervision.

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Article Synopsis
  • The authors introduce Neural Feature Fusion Fields (N3F), a technique that enhances 2D image feature extractors for analyzing images that can be reconstructed into a 3D scene.
  • N3F works by using a 2D feature extractor as a teacher to train a 3D "student" network, capable of distilling these features while leveraging differentiable rendering methods.
  • The method improves tasks like 2D object retrieval and 3D segmentation without needing manual labels, showing better performance compared to traditional self-supervised 2D methods, especially in scenarios like long egocentric videos.
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