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体验新版 GitCode,发现更多精彩内容 >>
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d1b923be
编写于
12月 11, 2021
作者:
J
Jonathan Dönszelmann
提交者:
jonay2000
12月 11, 2021
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Update name from Gunner to Gunnar as that's the name he published his
paper under.
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doc/js_tutorials/js_video/js_lucas_kanade/js_lucas_kanade.markdown
...torials/js_video/js_lucas_kanade/js_lucas_kanade.markdown
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doc/tutorials/video/optical_flow/optical_flow.markdown
doc/tutorials/video/optical_flow/optical_flow.markdown
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doc/js_tutorials/js_video/js_lucas_kanade/js_lucas_kanade.markdown
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@@ -133,9 +133,9 @@ Dense Optical Flow in OpenCV.js
Lucas-Kanade method computes optical flow for a sparse feature set (in our example, corners detected
using Shi-Tomasi algorithm). OpenCV.js provides another algorithm to find the dense optical flow. It
computes the optical flow for all the points in the frame. It is based on Gunn
e
r Farneback's
computes the optical flow for all the points in the frame. It is based on Gunn
a
r Farneback's
algorithm which is explained in "Two-Frame Motion Estimation Based on Polynomial Expansion" by
Gunn
e
r Farneback in 2003.
Gunn
a
r Farneback in 2003.
We use the function:
**
cv.calcOpticalFlowFarneback (prev, next, flow, pyrScale, levels, winsize,
iterations, polyN, polySigma, flags)
**
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doc/tutorials/video/optical_flow/optical_flow.markdown
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d1b923be
...
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@@ -136,9 +136,9 @@ Dense Optical Flow in OpenCV
Lucas-Kanade method computes optical flow for a sparse feature set (in our example, corners detected
using Shi-Tomasi algorithm). OpenCV provides another algorithm to find the dense optical flow. It
computes the optical flow for all the points in the frame. It is based on Gunn
e
r Farneback's
computes the optical flow for all the points in the frame. It is based on Gunn
a
r Farneback's
algorithm which is explained in "Two-Frame Motion Estimation Based on Polynomial Expansion" by
Gunn
e
r Farneback in 2003.
Gunn
a
r Farneback in 2003.
Below sample shows how to find the dense optical flow using above algorithm. We get a 2-channel
array with optical flow vectors,
\f
$(u,v)
\f
$. We find their magnitude and direction. We color code the
...
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