CV learning notes (optical flow)

Optical flow (optical flow)：

 

 

  How many? OpenCv Realized the measurement algorithm :

  Lucas–Kanade method  Chinese interpretation ： Chinese interpretation Lucas-Kanade Algorithm

• The Gunnar-Farneback optical flow

use Gunnar Farneback The algorithm calculates dense optical flow （ That is, the optical flow of all pixels on the image is calculated ）. Its related papers are ："Two-Frame Motion Estimation Based on PolynomialExpansion"

Two-Frame Motion Estimation Based on Polynomial Expansion Address of thesis

• block matching method

Rely on block matching method ,OpenCv Of API yes ： CalcOpticalFlowBM.

• Horn–Schunck method use Horn-Schunck The algorithm calculates dense optical flow .OpenCv Of API yes  CalcOpticalFlowHS.
• SimpleFlow

Project website Source code