Computer Vision

Living Edition

Ego-Motion and EPI Analysis

  • Masanobu YamamotoEmail author
Living reference work entry


Related Concepts


Stacking up a sequence of images in the order of shooting time, a 3D image having a time axis which is the thickness direction of just one book is obtained. This 3D image is called a spatiotemporal image. If the temporal change of the image is slow, the spatiotemporal image has continuity in the time axis direction as strong as in the image axis directions. An epipolar plane is composed of two camera viewpoints at the start and end times of the moving images and a 3D point on the object. If the camera moves in translation, this object point is constrained on the epipolar plane. When the spatiotemporal image is cut along the epipolar plane, the projection of the object point draws a locus on this cross section. This spatiotemporal cross-sectional image is called an epipolar plane image (EPI). By analyzing the EPI, it is possible to track the objects...

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Niigata UniversityNiigataJapan

Section editors and affiliations

  • Wenjun Zeng
    • 1
  • Sing Bing Kang
    • 2
  1. 1.Microsoft ResearchBeijingChina
  2. 2.Microsoft ResearchRedmondUSA