Cascade Cost Volume for High-Resolution Multi-View Stereo and Stereo Matching

By Xiaodong Gu, Zhiwen Fan, Siyu Zhu, Zuozhuo Dai, Feitong Tan, Ping Tan. Computer Vision and Pattern Recognition, 2019

959 citations recorded by the source corpus.

The deep multi-view stereo (MVS) and stereo matching approaches generally construct 3D cost volumes to regularize and regress the output depth or disparity. These methods are limited when high-resolution outputs are needed since the memory and time costs grow cubically as the volume resolution increases. In this paper, we propose a both memory and time efficient cost volume formulation that is complementary to existing multi-view stereo and stereo matching approaches based on 3D cost volumes. First, the proposed cost volume is built upon a standard feature pyramid encoding geometry and context at gradually finer scales. Then, we can narrow the depth (or disparity) range of each stage by the depth (or disparity) map from the previous stage. With gradually higher cost volume resolution and adaptive adjustment of depth (or disparity) intervals, the output is recovered in a coarser to fine manner. We apply the cascade cost volume to the representative MVS-Net, and obtain a 35.6% improvement on DTU benchmark (1st place), with 50.6% and 59.3% reduction in GPU memory and run-time. It is also the state-of-the-art learning-based method on Tanks and Temples benchmark. The statistics of accuracy, run-time and GPU memory on other representative stereo CNNs also validate the effectiveness of our proposed method. Our source code is available at https://github.com/alibaba/cascade-stereo.

Subfields: Aerospace Engineering, Computer Vision and Pattern Recognition

View Paper: https://www.semanticscholar.org/paper/f88fb3a3ef31ecd9a00c7bd800cbd8f9bdb2f704

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In Aerospace Engineering

  1. Andreas Geiger
  2. Marc Pollefeys
  3. Jia-Bin Huang
  4. Dacheng Tao
  5. Hao Su
  6. Zeming Li
  7. Jian‐Yuan Sun
  8. Yue Gao

In Computer Vision and Pattern Recognition

  1. Dacheng Tao
  2. Luc Van Gool
  3. Ming-Hsuan Yang
  4. Jitendra Malik
  5. Andrea Vedaldi
  6. Xiaogang Wang
  7. Trevor Darrell
  8. Andrew Zisserman

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