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Summary of Iterative Geometry Encoding Volume For Stereo Matching, by Gangwei Xu et al.


Iterative Geometry Encoding Volume for Stereo Matching

by Gangwei Xu, Xianqi Wang, Xiaohuan Ding, Xin Yang

First submitted to arxiv on: 12 Mar 2023

Categories

  • Main: Computer Vision and Pattern Recognition (cs.CV)
  • Secondary: None

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The paper proposes a new deep network architecture called Iterative Geometry Encoding Volume (IGEV-Stereo) for stereo matching, which builds upon the Recurrent All-Pairs Field Transforms (RAFT) framework. The IGEV-Stereo combines geometry and context information with local matching details to update the disparity map iteratively. To improve convergence speed, it uses Generalized Encoding Volume (GEV) to regress an accurate starting point for ConvGRUs iterations. The proposed method achieves state-of-the-art performance on KITTI 2015 and 2012 (Reflective), outperforming other published methods while being the fastest among top-ranked approaches. Additionally, IGEV-Stereo demonstrates strong cross-dataset generalization and high inference efficiency. The authors also extend their approach to multi-view stereo (MVS) with competitive accuracy on the DTU benchmark.
Low GrooveSquid.com (original content) Low Difficulty Summary
The paper is about a new way to match images that are slightly different because of how they were taken. The old method, RAFT, was good but not perfect. So, the researchers created a new model called IGEV-Stereo that combines information from the images with details about how they’re related. This helps the model do better and faster than before. They tested it on some big datasets and it came out on top. The model also works well when trying to match multiple images at once.

Keywords

* Artificial intelligence  * Generalization  * Inference