Questions - OpenCV Q&A Forum

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2020-10-08 03:15:34 -0600 Steven.Dragoz

ORB Keypoints Minimum distance?

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3

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2020-07-24 10:46:51 -0600 Dail

ORB keypoints distribution over an image

898

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1

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no

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2020-05-15 05:46:49 -0600 HYPEREGO

Find average distance between 2 matched keypoints (after using findHomography() mask) c++

keypoint-matching

601

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2019-11-27 12:58:22 -0600 Karido

Combining KAZE keypoints with SIFT descriptors?

395

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1

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2019-11-10 09:52:35 -0600 Shengyang.CHEN

List KeyPoint missing queryIdx

136

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1

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2019-10-06 03:18:29 -0600 berak

How do you compare the x and y differences of feature points in two different images

keypoint-matching

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2019-07-30 09:36:13 -0600 kdk2612

What are Octaves and Sub levels in KAZE and AKAZE?

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2019-03-24 03:54:54 -0600 Pragyan

how to draw lines for feature match within the same image

427

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2

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2018-12-06 05:44:54 -0600 Grillteller

Guidance on landscape image recognition

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2018-01-25 14:49:38 -0600 okramer

What is the sampling radius used to compute a binary descriptor?

633

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2018-01-09 22:44:18 -0600 Tetragramm

Cropping keypoints vs. cropping image and finding keypoints

315

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1

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2017-09-17 12:21:50 -0600 newt

Find ROI on an image from given reference

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1

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2017-07-14 19:08:59 -0600 Tetragramm

Match 2d keypoints to 3d Triangulated points using three sets of descriptors?

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2016-06-11 04:04:59 -0600 Siddharth Kamaria

Finding damages in the image using Feature Matching

566

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2016-06-06 09:50:12 -0600 aripod

Coordinates of keypoints using FLANN matcher

keypoint-matching

602

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2016-04-02 13:56:13 -0600 fgnm

Simplest way to do an image registration

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1

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4

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2016-03-16 05:02:13 -0600 strann

SURF on CUDA: every execution produces different + weird results for some images?

767

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1

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2016-02-03 08:24:40 -0600 501 - not implemented

cluster similar keypoints in a set of near similar images

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2016-01-12 05:12:37 -0600 dpwicaksa

method for bi-color feature detection and matching

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2016-01-09 05:06:36 -0600 dpwicaksa

Feature detection and matching for localization (openCV.3)

642

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-1

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2015-11-03 07:15:16 -0600 Priyanka

OpenCV Error: Incorrect size of input array (Non-positive width or height) in unknown function, file ..\..\..\src\opencv\modules\core\src\array.cpp, line 113

keypoint-matching

1k

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1

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2

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2015-06-23 07:43:25 -0600 R.Saracchini

feature matching video stream?

649

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1

answer

1

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2015-05-20 16:38:25 -0600 maystroh10

Compute SURF/SIFT descriptors of non key points

234

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2015-05-12 18:43:19 -0600 Metalzero2

What do "KeyPoint" contain when used with 2D feature detectors

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2015-02-13 10:31:49 -0600 Doombot

Subpixel location of keypoints. Why?

165

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2015-01-29 10:11:06 -0600 Doombot

Minimal number of keypoint-descriptors

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2015-01-28 20:06:26 -0600 Mehdi

Fast outliers detection

86

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2014-12-24 21:29:51 -0600 Adam Cavendish

How can I do knnMatch in a small window

keypoint-matching

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2014-05-17 07:21:35 -0600 Guian

OpenCV DescriptorMatcher match error. Wrong KeyPoints Descriptor type?

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2014-05-02 06:58:46 -0600 jpl

37 questions

ORB Keypoints Minimum distance?

ORB keypoints distribution over an image

Find average distance between 2 matched keypoints (after using findHomography() mask) c++

Combining KAZE keypoints with SIFT descriptors?

List KeyPoint missing queryIdx

How do you compare the x and y differences of feature points in two different images

What are Octaves and Sub levels in KAZE and AKAZE?

how to draw lines for feature match within the same image

Guidance on landscape image recognition

What is the sampling radius used to compute a binary descriptor?

Cropping keypoints vs. cropping image and finding keypoints

Find ROI on an image from given reference

Match 2d keypoints to 3d Triangulated points using three sets of descriptors?

Finding damages in the image using Feature Matching

Coordinates of keypoints using FLANN matcher

Simplest way to do an image registration

SURF on CUDA: every execution produces different + weird results for some images?

cluster similar keypoints in a set of near similar images

method for bi-color feature detection and matching

Feature detection and matching for localization (openCV.3)

OpenCV Error: Incorrect size of input array (Non-positive width or height) in unknown function, file ..\..\..\src\opencv\modules\core\src\array.cpp, line 113

feature matching video stream?

Compute SURF/SIFT descriptors of non key points

What do "KeyPoint" contain when used with 2D feature detectors

Subpixel location of keypoints. Why?

Minimal number of keypoint-descriptors

Fast outliers detection

How can I do knnMatch in a small window

OpenCV DescriptorMatcher match error. Wrong KeyPoints Descriptor type?

Brute force matcher vs knn+RANSAC, which is better?

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