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
30 questions
Tagged
detector
×
261
views
no
answers
no
votes
2019-10-04 10:44:26 -0600
WolfG
SURF feature detector detects no keypoints
SURF
feature
detector
detects
no
Keypoints
419
views
no
answers
2
votes
2019-05-14 02:22:06 -0600
sfo
License for trained DNN face detector models?
3rdparty
dnn_samples
face
detector
model
633
views
no
answers
no
votes
2017-08-12 14:07:08 -0600
Marichelo
/ libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 17552
opencv
android
SURF
detector
8k
views
1
answer
no
votes
2017-02-18 05:22:12 -0600
LBerger
x y cordinates of the blobs detected by simple blob detector
opencv3
simple
blob
detector
c++
107
views
no
answers
no
votes
2016-06-02 11:34:40 -0600
lovaj
How to use Mikolajczyk evaluation for detectors/descriptors?
opencv
evaluation
descriptor
detector
414
views
1
answer
1
vote
2016-03-20 12:33:44 -0600
Tetragramm
(3.1.0) Detected FAST keypoints offset from image
fast
detector
feature-detection
604
views
no
answers
no
votes
2015-07-23 16:43:07 -0600
Banquin
How do I use SimpleBlobDetection with Color?
blob-detection
detector
blobs
1k
views
1
answer
1
vote
2015-06-24 11:43:52 -0600
StevenPuttemans
How does scale factor behave in HOG multiscale detector ?
detector
HOGDescriptor
detectScale
2k
views
no
answers
2
votes
2015-05-05 10:30:14 -0600
semicolonwarrior
Dense Features in Opencv 3
feature
detector
376
views
no
answers
no
votes
2015-03-12 07:52:16 -0600
Schawn
Training Dectectors - Image Sample Preparations
detector
cascade
cascadeclassifier
cvhaartraining
832
views
no
answers
1
vote
2015-02-27 21:56:54 -0600
mtourne
Latent SVM - training from opencv_extras [closed]
latent-svm
latentsvm
detector
classifier
123
views
no
answers
no
votes
2015-01-27 04:04:03 -0600
Fiong
error: detector.detect, image size too large [closed]
SIFT
detector
object-detection
506
views
no
answers
1
vote
2014-10-18 10:51:49 -0600
longgang005
ORB detector octaves [closed]
ORB
detector
695
views
1
answer
1
vote
2014-10-06 09:29:38 -0600
Siegfried
SIFT detector returns duplicate keypoints
SIFT
detector
duplicate
Keypoints
Angle
969
views
1
answer
2
votes
2013-12-15 23:31:29 -0600
me
Evaluate Feature Detectors
feature
detector
descriptor
features2d
keypoint
1k
views
no
answers
6
votes
2013-12-13 02:40:15 -0600
me
Evaluation of Interest-Point-Detectors and Descriptors
code.opencv
evaluation
algorithms
detector
descriptor
2k
views
1
answer
9
votes
2013-07-19 06:22:15 -0600
StevenPuttemans
How was the hogdescriptor::getDefaultPeopleDetector() trained
SVM
detector
people
default
858
views
no
answers
2
votes
2013-06-15 10:45:41 -0600
RaulPL
error using BRISK + GridAdaptedFeatureDetector
brisk
grid
features2d
opencv2.4.9
detector
702
views
1
answer
no
votes
2013-05-23 05:55:45 -0600
aliciadominica
error using StarFeatureDetector + GridAdaptedFeatureDetector
opencv2.4.9
Star
detector
grid
547
views
1
answer
2
votes
2013-03-26 10:44:35 -0600
Andrey Pavlenko
Why this code returns different number of keypoints in Java?
java
keypoint
detector
descriptor
259
views
1
answer
no
votes
2013-02-23 14:29:04 -0600
Alexander Smorkalov
Weird issue: Output of running same code on Android & OSx differs
detector
basics
757
views
no
answers
no
votes
2013-02-19 15:17:25 -0600
Guido
Why SIFT detector returns duplicate keypoints ?
Keypoints
detector
SIFT
484
views
1
answer
no
votes
2013-02-18 06:38:56 -0600
Guanta
Brisk - undefined reference
brisk
detector
reference
542
views
1
answer
no
votes
2013-01-25 05:20:53 -0600
mrgloom
how to test face detector?
HaarDetectObjects
face
detector
33k
views
no
answers
2
votes
2012-12-18 11:58:21 -0600
Gabriele
SimpleBlobDetector and blob contours
simpleblobdetector
detector
blob-detection
contours
1k
views
no
answers
1
vote
2012-11-15 12:16:25 -0600
Adi
Why this picture is classified to Upperbody? [closed]
Upperbody
detector
cascadeclassifier
1k
views
1
answer
7
votes
2012-09-20 08:17:35 -0600
jav_rock
Clarifying FREAK: Fast Retina Keypoint descriptor
freak
descriptor
detector
654
views
1
answer
1
vote
2012-09-20 04:03:20 -0600
Michal Kottman
BRISK runs out of memory on iOS
brisk
detector
descriptor
ios
iphone
428
views
1
answer
no
votes
2012-07-24 03:08:50 -0600
Jay Zhang
How to free the memory when I use the face detector?
face
detector
1k
views
1
answer
3
votes
2012-07-20 12:09:25 -0600
Ilya Lysenkov
How to control the precision vs. recall rate of a classifier?
precision
recall
classifier
ml
detector
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
detector
×30
descriptor
×6
brisk
×3
face
×3
feature
×3
Keypoints
×3
SIFT
×3
blob-detection
×2
cascadeclassifier
×2
classifier
×2
evaluation
×2
features2d
×2
grid
×2
keypoint
×2
opencv
×2
opencv2.4.9
×2
SURF
×2
3rdparty
×1
algorithms
×1
android
×1
Angle
×1
basics
×1
blob
×1
blobs
×1
c++
×1
cascade
×1
code.opencv
×1
contours
×1
cvhaartraining
×1
default
×1
detects
×1
detectScale
×1
dnn_samples
×1
duplicate
×1
fast
×1
feature-detection
×1
freak
×1
HaarDetectObjects
×1
HOGDescriptor
×1
ios
×1
iphone
×1
java
×1
latentsvm
×1
latent-svm
×1
ml
×1
model
×1
no
×1
object-detection
×1
opencv3
×1
ORB
×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
×
