Questions - OpenCV Q&A Forum

24k

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3

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2

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2016-11-01 18:08:41 -0600 amahta

Error in parameter of traincascade?

4k

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3

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no

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2020-03-29 06:10:32 -0600 ComputerVisionary

Can someone explain me these terms (acceptanceRatio, HR, FA) in training haar cascade, and "acceptanceRatio 800:4.97153e-05" is it consider good?

1k

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2

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no

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2013-04-12 03:58:57 -0600 StevenPuttemans

Accuracy of detectMultiScale + what are face databases of haarcascade_frontalface_alt.xml

935

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2

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no

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2013-03-08 02:39:52 -0600 StevenPuttemans

Problems with Haartraining

996

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1

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2015-03-25 01:01:21 -0600 john_1282

Face detection and comparision

opencv
c++

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2

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2015-11-23 08:08:45 -0600 StevenPuttemans

Evaluation model of Haar cascade classifier

1k

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2013-08-23 13:26:04 -0600 FLY

What would be the best detectors for these objects

4k

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2

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1

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2015-01-18 08:21:58 -0600 StevenPuttemans

custom object recognition with OpenCV

opencv

3k

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2

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1

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2013-03-04 11:44:18 -0600 Philipp Wagner

Need of Eye detection in Face Recognition?

Face-Recognition

3k

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2

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2013-02-14 04:17:11 -0600 Guanta

What is the best solution for rotation invariant detector?

1k

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2018-01-19 18:49:58 -0600 phillity

Facemark Kazemi Training

3k

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2

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no

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2015-11-25 05:47:17 -0600 belgraviton

What are Stages in traincascade.exe?

stages

2k

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1

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2013-05-16 05:53:33 -0600 vinayverma

OpenCV_traincascade giving a lot of false positives

2k

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2

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no

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2013-08-22 16:09:43 -0600 Guanta

JAVA / ANDROID: Trying to detect buttons (in a car). Which is the way to go? I tried many ways already.

#android

714

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2

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no

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2014-02-27 03:28:12 -0600 tuannhtn

train facerecognizer model with gpu support

7k

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2

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3

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2013-04-11 11:52:36 -0600 IsaacFernandez

Explanation of cascade.xml in a haar classifier

2k

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2

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no

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2016-02-02 06:50:43 -0600 StevenPuttemans

why may detectMultiScale() give too many points out of the interested object?

870

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2

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no

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2016-03-18 03:38:36 -0600 Mathieu Barnachon

Moving object classification

1k

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2

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1

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2012-07-18 03:00:34 -0600 Ayan Acharya

native opencv camera for LBP based detection

1k

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2

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2

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2013-07-15 06:02:59 -0600 albertofernandez

Recognize oval shaped illustrations in scanned book pages

2k

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2

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no

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2013-07-13 13:05:25 -0600 asd

correct parameters for createsamples and traincascade

1k

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2

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no

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2014-01-22 22:12:18 -0600 Parthi

what kind of approach can be used for recognize hand signs?

3k

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2

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3

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2012-11-26 08:11:45 -0600 sanok

Cascade Classifier in commercial app

504

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2

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no

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2013-03-14 05:22:34 -0600 berak

how to run python script to align faces in windows 7

4k

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2

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1

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2013-03-12 05:01:12 -0600 jompa234

Custom HOGDetector using CvSVM and HOG features.

450

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2

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no

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2013-09-11 04:44:06 -0600 Mostafa Sataki

Further image processing analysis on roi

5k

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2

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no

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2013-12-29 10:17:57 -0600 Guanta

Comparing image to a database of images using SURF - python

1k

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2

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no

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2017-09-19 06:43:25 -0600 StevenPuttemans

Traincascade - Required leaf false alarm rate achieved. Branch training terminated.

createsamples

7k

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2

answers

1

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2013-04-13 07:08:20 -0600 Guanta

haar classifier detection vs feature detection,extraction and matching

1k

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2

answers

1

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2018-01-15 09:33:53 -0600 procton

Any tool for cropping positive samples

training

728 questions

Error in parameter of traincascade?

Can someone explain me these terms (acceptanceRatio, HR, FA) in training haar cascade, and "acceptanceRatio 800:4.97153e-05" is it consider good?

Accuracy of detectMultiScale + what are face databases of haarcascade_frontalface_alt.xml

Problems with Haartraining

Face detection and comparision

Evaluation model of Haar cascade classifier

What would be the best detectors for these objects

custom object recognition with OpenCV

Need of Eye detection in Face Recognition?

What is the best solution for rotation invariant detector?

Facemark Kazemi Training

What are Stages in traincascade.exe?

OpenCV_traincascade giving a lot of false positives

JAVA / ANDROID: Trying to detect buttons (in a car). Which is the way to go? I tried many ways already.

train facerecognizer model with gpu support

Explanation of cascade.xml in a haar classifier

why may detectMultiScale() give too many points out of the interested object?

Moving object classification

native opencv camera for LBP based detection

Recognize oval shaped illustrations in scanned book pages

correct parameters for createsamples and traincascade

what kind of approach can be used for recognize hand signs?

Cascade Classifier in commercial app

how to run python script to align faces in windows 7

Custom HOGDetector using CvSVM and HOG features.

Further image processing analysis on roi

Comparing image to a database of images using SURF - python

Traincascade - Required leaf false alarm rate achieved. Branch training terminated.

haar classifier detection vs feature detection,extraction and matching

Any tool for cropping positive samples

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