First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity
answers
votes ▼
31 questions
Tagged
calcOpticalFlowPyrLK
×
3k
views
2
answers
2
votes
2012-07-13 06:25:41 -0600
jayrambhia
Can't use pyramids in calcOpticalFlowPyrLK - Python
python
Video
tracking
calcOpticalFlowPyrLK
688
views
no
answers
2
votes
2014-02-25 16:29:33 -0600
Rui Marques
How to use the pyramid list from buildOpticalFlowPyramid as input for calcOpticalFlowPyrLK?
android
java
calcOpticalFlowPyrLK
5k
views
1
answer
1
vote
2012-08-02 05:25:44 -0600
AlexanderShishkov
source code for calcOpticalFlowPyrLK
calcOpticalFlowPyrLK
source
code
1k
views
1
answer
1
vote
2012-12-02 06:25:34 -0600
aliciadominica
Optical flow - color images
Optical
Flow
calcOpticalFlowPyrLK
974
views
no
answers
1
vote
2014-02-01 12:52:46 -0600
myplacedk
Detect amount of sideways camera movement
java
calcOpticalFlowPyrLK
372
views
no
answers
1
vote
2016-11-30 02:53:56 -0600
Vintez
TrackWithOpticalFlow Alternatives
android
native
calcOpticalFlowPyrLK
tracking
903
views
1
answer
no
votes
2012-07-22 22:56:39 -0600
Martin Peris
feature tracking assertion fail error
calcOpticalFlowPyrLK
assertion
features2d
2k
views
1
answer
no
votes
2013-01-29 13:32:19 -0600
Alexander Smorkalov
calcOpticalFlowPyrLK() assertion failure
calcOpticalFlowPyrLK
opencv
assertion
failure
369
views
no
answers
no
votes
2013-06-02 21:46:21 -0600
aya
how can i use cvCalcOpticalFlowPyrLK to get velocity of an tracked object?
calcOpticalFlowPyrLK
443
views
1
answer
no
votes
2013-08-09 02:42:26 -0600
grtwa
Best points for opticalFlow
calcOpticalFlowPyrLK
optical-flow
key
175
views
no
answers
no
votes
2013-10-15 05:50:08 -0600
tenta4
calcOpticalFlowPyrLK. Use pyramids instead of Image
opencv
calcOpticalFlowPyrLK
910
views
1
answer
no
votes
2014-08-05 02:25:02 -0600
Ziyou
calcOpticalFlowPyrLK alternatives
calcOpticalFlowPyrLK
augmentedReality
2k
views
no
answers
no
votes
2013-12-15 18:32:13 -0600
lhotchkiss
calcOpticalFlowPyrLK losing single user-defined tracking point
#opencv
#python
calcOpticalFlowPyrLK
317
views
no
answers
no
votes
2014-03-21 07:51:25 -0600
zaaa
Using Optical flow to track colour markers
calcOpticalFlowPyrLK
tracking
markers
corners
5k
views
1
answer
no
votes
2014-07-05 00:53:20 -0600
Abhishek Kumar Annamraju
OpenCV Error: Assertion failed ((npoints = prevPtsMat.checkVector(2, CV_32F, true)) >= 0) in void cv::calcOpticalFlowPyrLK
#android
#opticalflow
calcOpticalFlowPyrLK
10k
views
2
answers
no
votes
2014-08-24 08:28:01 -0600
Olivier
error: (-215) (npoints = prevPtsMat.checkVector(2, CV_32F, true)) >= 0 in function calcOpticalFlowPyrLK
calcOpticalFlowPyrLK
570
views
no
answers
no
votes
2015-04-12 18:19:37 -0600
215
calcOpticalFlowPyrLK assertion failure
assertion_failed
calcOpticalFlowPyrLK
198
views
no
answers
no
votes
2015-04-14 13:30:01 -0600
215
incorrect parameter for calcOpticalFlowPyrLK
calcOpticalFlowPyrLK
c++
parameter-passing
tracking
936
views
1
answer
no
votes
2015-04-21 11:50:59 -0600
dtmoodie
calcOpticalFlowPyrLK and goodFeaturesToTrack doesn't work properly in Ros
ros
goodFeaturesToTrack
calcOpticalFlowPyrLK
525
views
1
answer
no
votes
2015-11-20 12:26:27 -0600
pviewer
Conditional jump or move depends on uninitialised value(s) from Valgrind for calcOpticalFlowPyrLK call
calcOpticalFlowPyrLK
Valgrind
118
views
no
answers
no
votes
2015-11-20 05:27:06 -0600
Marcofe
Get intermediate optical flow levels with calcOpticalFlowPyrLk
opticalflow
calcOpticalFlowPyrLK
138
views
no
answers
no
votes
2016-03-24 06:25:59 -0600
helio
Why calcOpticalFlowPyrLK returns real values instead of integer pixel coordinates? [closed]
calcOpticalFlowPyrLK
3k
views
1
answer
no
votes
2016-07-31 03:02:02 -0600
elish
OpenCV Error: Assertion failed (prevPyr[level * lvlStep1].size() == nextPyr[level * lvlStep2].size()) in void cv::calcOpticalFlowPyrLK
opencv
android
calcOpticalFlowPyrLK
967
views
1
answer
no
votes
2016-10-08 21:31:54 -0600
Tetragramm
Issue with calcOpticalFlowPyrLK()
visual-odometry
FastFeatureDetector
calcOpticalFlowPyrLK
479
views
no
answers
no
votes
2016-11-14 10:40:59 -0600
Vintez
Problems with calcOpticalFlowPyrLK [closed]
calcOpticalFlowPyrLK
tracking
403
views
no
answers
no
votes
2016-11-30 05:38:19 -0600
Vintez
cv::calcOpticalFlowPyrLK Assertion failed(line 1138) [closed]
calcOpticalFlowPyrLK
assertion
c++
1k
views
1
answer
no
votes
2017-06-02 21:49:30 -0600
Tetragramm
Example of SparsePyrLKOpticalFlow
CUDA
calc
Optical
calcOpticalFlowPyrLK
333
views
1
answer
no
votes
2017-07-27 00:41:21 -0600
Tetragramm
Not understanding how calcOpticalFlowPyrLK outputs found points
feature
calcOpticalFlowPyrLK
goodFeaturesToTrack
353
views
no
answers
no
votes
2018-03-21 07:31:14 -0600
berak
calcOpticalFlowPyrLK segmentation fault
calcOpticalFlowPyrLK
color-segmentation
92
views
no
answers
no
votes
2019-04-23 22:31:38 -0600
Christoph
How to count how many times a point was tracked with opticalFlow
calcOpticalFlowPyrLK
1
2
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
calcOpticalFlowPyrLK
×30
tracking
×5
android
×3
assertion
×3
opencv
×3
c++
×2
goodFeaturesToTrack
×2
java
×2
Optical
×2
#android
×1
assertion_failed
×1
augmentedReality
×1
calc
×1
code
×1
color-segmentation
×1
corners
×1
CUDA
×1
failure
×1
FastFeatureDetector
×1
feature
×1
features2d
×1
Flow
×1
key
×1
markers
×1
native
×1
#opencv
×1
opticalflow
×1
#opticalflow
×1
optical-flow
×1
parameter-passing
×1
python
×1
#python
×1
ros
×1
source
×1
Valgrind
×1
Video
×1
visual-odometry
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
