Questions - OpenCV Q&A Forum

397

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1

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no

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2015-08-20 04:19:29 -0600 StevenPuttemans

how to detect numbers written on a speed sign

130

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no

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-1

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2016-05-19 10:10:20 -0600 aee

Bag of Words without using OBJECT CATEGORIZATION functions [closed]

923

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1

answer

-1

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2018-12-05 01:16:06 -0600 berak

Why FeatureDetector is deprecated on OpenCV 3.42 ??

1k

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1

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no

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2013-02-16 02:22:33 -0600 Mathieu Barnachon

Find polygon in image (rotation-invariant)

697

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1

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no

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2013-03-27 17:23:36 -0600 rylexr

DescriptorExtractor.compute() is not removing keypoints

810

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2

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no

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2013-07-07 07:00:40 -0600 pheips

FeatureDetector with mask input (third parameter)

582

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2013-06-06 03:33:45 -0600 StevenPuttemans

Waveform detection and analysis

236

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1

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no

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2013-06-28 11:31:07 -0600 BeS

Feature Detection Interface vs Specific Classes

102

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no

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2014-11-11 08:18:20 -0600 Urmi

How to create feature detector with default parameter

featuredetector

2k

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1

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2015-01-16 09:55:29 -0600 berak

Problem on initialize FeatureDetector or DescriptorExtractor on OpenCV 3.0

751

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1

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no

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2017-07-26 05:22:47 -0600 Raki

How to use KAZE features in opencv ?

featuredetector

682

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1

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no

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2015-01-26 03:45:33 -0600 Cora

Which Extractor do I have to use for FAST Detector?

1k

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no

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2015-02-03 07:52:21 -0600 Samjakar

Method to detect the perimeter board in an Ice Hockey game image

753

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2

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no

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2015-02-25 08:14:26 -0600 Potato

FeatureDetector for SURF

182

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1

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no

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2015-04-02 08:15:14 -0600 JohannesZ

What are the applications of feature detectors?

222

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1

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no

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2015-04-13 09:51:08 -0600 Guanta

DenseFeatureDetector: Only a certain number of points?

141

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no

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no

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2015-06-04 05:50:29 -0600 cv_new

How to set the suitable parameters for the feature detectors?

172

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1

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no

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2015-06-24 12:19:44 -0600 LBerger

extractor.compute clears keypoints

3k

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2020-10-04 18:58:48 -0600 VoteCoffee

Drawmatches throws error when trying to use only good matches

5k

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no

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2015-07-04 05:51:26 -0600 mkc

OpenCV error: ‘create’ is not a member of ‘cv::FeatureDetector {aka cv::Feature2D}’

featuredetector

1k

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no

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no

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2015-08-26 15:04:14 -0600 marm

Segfault in SimpleBlobDetector::findBlobs [closed]

234

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no

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2015-09-18 03:10:16 -0600 Luisloez89

Strange behaviour of cv::BFMatcher to match descriptors from custom ASIF (based on vlFeat)

2k

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no

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no

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2015-11-04 04:50:50 -0600 ines.martins

How to verify if two images have the same object/content?

188

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no

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2016-01-08 12:12:50 -0600 thexnightmare

Calculating Z axis of tracked image or 3d tracker algorithm

347

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no

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no

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2016-02-11 08:12:35 -0600 KirbX

Feature Matching Large images [closed]

340

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1

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no

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2016-03-06 05:52:29 -0600 berak

How to detect keypoints, compute descriptors and match those descriptors in OpenCV 3.0.0, Visual Studio 2013, in C++?

1k

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1

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no

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2016-04-01 17:35:37 -0600 Tetragramm

Detect presence/absence of a screw - Image comparison

306

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no

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no

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2016-06-27 13:00:20 -0600 ogx

FeatureDetector minimum template size

1k

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1

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no

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2016-07-04 23:30:51 -0600 benz

define marker and detect the number of markers

200

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no

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no

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2016-08-04 08:58:33 -0600 WhoAmI

70 questions

how to detect numbers written on a speed sign

Bag of Words without using OBJECT CATEGORIZATION functions [closed]

Why FeatureDetector is deprecated on OpenCV 3.42 ??

Find polygon in image (rotation-invariant)

DescriptorExtractor.compute() is not removing keypoints

FeatureDetector with mask input (third parameter)

Waveform detection and analysis

Feature Detection Interface vs Specific Classes

How to create feature detector with default parameter

Problem on initialize FeatureDetector or DescriptorExtractor on OpenCV 3.0

How to use KAZE features in opencv ?

Which Extractor do I have to use for FAST Detector?

Method to detect the perimeter board in an Ice Hockey game image

FeatureDetector for SURF

What are the applications of feature detectors?

DenseFeatureDetector: Only a certain number of points?

How to set the suitable parameters for the feature detectors?

extractor.compute clears keypoints

Drawmatches throws error when trying to use only good matches

OpenCV error: ‘create’ is not a member of ‘cv::FeatureDetector {aka cv::Feature2D}’

Segfault in SimpleBlobDetector::findBlobs [closed]

Strange behaviour of cv::BFMatcher to match descriptors from custom ASIF (based on vlFeat)

How to verify if two images have the same object/content?

Calculating Z axis of tracked image or 3d tracker algorithm

Feature Matching Large images [closed]

How to detect keypoints, compute descriptors and match those descriptors in OpenCV 3.0.0, Visual Studio 2013, in C++?

Detect presence/absence of a screw - Image comparison

FeatureDetector minimum template size

define marker and detect the number of markers

ORB Feature Descriptor Official Paper Explanation

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