Machine learning

Leverage (statistics)

Optical flow

Deep learning

Computer science

Motion estimation

Image (mathematics)

Flow (mathematics)

Pure mathematics

Mathematics

Computer vision

Field (mathematics)

Artificial intelligence

Geometry

Pattern Recognition

Motion analysis is one of the most fundamental and challenging problems in the field of computer vision, which can be widely applied in many areas, such as autonomous driving, action recognition, scene understanding, and robotics. In general, the displacement field between subsequent frames can be divided into two types: optical flow and scene flow. The optical flow represents the pixel motion of adjacent frames. In contrast, the scene flow is a 3D motion field of the dynamic scene between two frames. Traditional approaches for the estimation of optical flow and scene flow usually leverage the variational technique, which can be solved as an energy minimization process. In recent years, deep learning has emerged as a powerful technique for learning feature representations directly from data. It has led to remarkable progress in the field of optical flow and scene flow estimation. In this paper, we provide a comprehensive survey of optical flow and scene flow estimation. First, we briefly review the pioneering...

Optical flow and scene flow estimation: A survey