Cited by 110Advanced Vision and ImagingAdvanced Neural Network ApplicationsAdvanced Image and Video Retrieval Techniques

CroCo v2: Improved Cross-view Completion Pre-training for Stereo Matching and Optical Flow

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Weinzaepfel, Philippe, Lucas, Thomas, Leroy, Vincent, Cabon, Yohann, Arora, Vaibhav, Brégier, Romain, Csurka, Gabriela, Antsfeld, Leonid +2 more·2023·2023 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

Despite impressive performance for high-level downstream tasks, self-supervised pre-training methods have not yet fully delivered on dense geometric vision tasks such as stereo matching or optical flow. The application of self-supervised concepts, such as instance discrimination or masked image modeling, to geometric tasks is an active area of research. In this work, we build on the recent cross-view completion framework, a variation of masked image modeling that leverages a second view from the same scene which makes it well suited for binocular downstream tasks. The applicability of this concept has so far been limited in at least two ways: (a) by the difficulty of collecting real-world image pairs – in practice only synthetic data have been used – and (b) by the lack of generalization of vanilla transformers to dense downstream tasks for which relative position is more meaningful than absolute position. We explore three avenues of improvement. First, we introduce a method to collect suitable real-world image pairs at large scale. Second, we experiment with relative positional embeddings and show that they enable vision transformers to perform substantially better. Third, we scale up vision transformer based cross-completion architectures, which is made possible by the use of large amounts of data. With these improvements, we show for the first time that state-of-the-art results on stereo matching and optical flow can be reached without using any classical task-specific techniques like correlation volume, iterative estimation, image warping or multi-scale reasoning, thus paving the way towards universal vision models.

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Crossref · 10.1109/iccv51070.2023.01647

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78 of 78 references verified0 citation errors · 0 not checkable

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  • The robustness of SenseAct-NN methods to image noise speaks to the robustness of visual features from cross-view consistent representations from the CroCo-v2 encoder used for the SenseAct-NN Skill Chain baseline and CLIP used for the monolithic policy.

    “This speaks to the robustness of the visual features from cross-view consistent representations from the CroCo-v2 encoder [34] used for the SenseAct-NN Skill Chain baseline and CLIP used for the monolithic policy.”

    From GOAT-Bench: A Benchmark for Multi-Modal Lifelong Navigation (2024) · cites this paper as [34]

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  • GOAT-Bench: A Benchmark for Multi-Modal Lifelong Navigation

    Khanna, M., Ramrakhya, R., Chhablani, G., Yenamandra, S., Gervet, T., Chang, M., Kira, Z., Chaplot, D. S., Batra, D., & Mottaghi, R. (2024) · 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr52733.2024.01549 · Cited by 23 · see citing works

    “For example, one-hot encodings or detections for object goals, SuperGLUE-based keypoint matching [18, 33] or cross-view consistent encoders [34] for image goals, or linear projection for 3D coordinates [6].”
    BackgroundMethodInfluential

Authors
Weinzaepfel, P., Lucas, T., Leroy, V., Cabon, Y., Arora, V., Brégier, R., Csurka, G., Antsfeld, L., Chidlovskii, B., & Revaud, J.
Affiliations
Naver (South Korea) (KR)
Venue
2023 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2023-10-01
Pages
17923-17934
OpenAlex
W4390872625
Cited by
110
References
78
Citations by year
2026: 26 · 2025: 51 · 2024: 33
FWCI
11.75
Type
conference paper
Language
en
Open access
Locations
  • IEEE/CVF International Conference on Computer Vision (ICCV) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Vision and Imaging
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Image and Video Retrieval Techniques
Keywords
stereo matching, optical flow, self-supervised pre-training, masked image modeling, vision transformer, binocular vision

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