Questions - OpenCV Q&A Forum

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2016-03-13 20:18:25 -0600 dashiad

Unable to train an usable cascade

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2016-04-16 17:20:19 -0600 rockbass2560

How to train correctly a cascade

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2016-05-21 14:42:50 -0600 slnowak

Training cascade classifier: Can not get new positive sample

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2016-07-07 11:17:23 -0600 mrfromage

FaceRecognizer trained XML to Cascade Classifier (2.4.13)?

java
opencv

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2016-08-23 03:04:05 -0600 mohammads

Cascade Training Error OpenCV 2.4.13 error @ stage 4! Train dataset for temp stage can not be filled

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2016-10-26 18:22:21 -0600 atomoclast

Training Cascades with 2-3 varient items/increasing robustness.

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2016-11-02 08:14:32 -0600 Inder

Can Cascade Classifier Training in OpenCV be termed as Machine learning?

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2016-11-21 10:15:55 -0600 Tobyy

opencv_traincascade: Calculating numstages numpos numneg

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2017-03-24 14:45:20 -0600 sayem48

Haar Cascade training for leaves detection

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2017-06-02 08:26:26 -0600 Simão Martin

Cascade Classifier - Utilize less processor with TBB training.

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2017-06-28 10:07:31 -0600 eshirima

Cascade training parameters and time

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2017-10-03 17:00:37 -0600 user1932890

Implement Viola-Jones from scratch with pre-trained Haar cascade

cvHaarCascade

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2017-11-27 09:35:03 -0600 pww

Cascade training in OpenCV 3

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2017-12-15 11:36:55 -0600 d-e-t

Training cascade for detecting arrow signs

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2017-12-21 20:43:46 -0600 bateringzax

Poor Cascade Training Results

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2017-12-25 19:54:20 -0600 bateringzax

High false alarm rates at step 100 for cascade training

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2018-05-03 12:06:23 -0600 RazeK

How to improve the performance of a Haar cascade classifier during training?

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2018-07-06 10:12:08 -0600 Bleach

Cascade file trained in traincascade in cuda::CascadeClassifier

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2018-08-01 11:51:25 -0600 graham

Cascade Training - nneg setting with prepared negative images

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2018-09-17 03:47:48 -0600 RUCasul

Haar Cascade training not working as intended

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2019-03-02 02:51:47 -0600 UnluckyTicket

Need help with training cascade classifier

139

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2019-05-07 04:20:08 -0600 lovehell

Stage threshold in cascade training

cascadeclassifier

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2019-10-13 15:21:50 -0600 jpmoraga

Issue with my train cascade

traincascade

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2020-04-06 22:01:23 -0600 LearningCV

training haar cascade with single positive sample

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2020-04-28 02:13:05 -0600 Hibiki

I cannot run opencv_traincascade.exe (Train dataset for temp stage can not be filled. Branch training terminated. Cascade classifier can't be trained. Check the used training parameters.)

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2020-04-28 17:41:28 -0600 AndrakoValle

How to train more accurate Haar Cascades?

476

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2014-04-03 14:47:09 -0600 muser

ocl:detectmultiscale error with traincascade

557

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2016-03-03 23:31:20 -0600 Prakash

Opencv haar training parameters : Mode & symmentry

3k

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2014-07-28 10:07:13 -0600 FLY

How is acceptance ratio caclulated?

traincascade

203

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answers

1

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2015-10-22 10:13:41 -0600 Harold

198 questions

Unable to train an usable cascade

How to train correctly a cascade

Training cascade classifier: Can not get new positive sample

FaceRecognizer trained XML to Cascade Classifier (2.4.13)?

Cascade Training Error OpenCV 2.4.13 error @ stage 4! Train dataset for temp stage can not be filled

Training Cascades with 2-3 varient items/increasing robustness.

Can Cascade Classifier Training in OpenCV be termed as Machine learning?

opencv_traincascade: Calculating numstages numpos numneg

Haar Cascade training for leaves detection

Cascade Classifier - Utilize less processor with TBB training.

Cascade training parameters and time

Implement Viola-Jones from scratch with pre-trained Haar cascade

Cascade training in OpenCV 3

Training cascade for detecting arrow signs

Poor Cascade Training Results

High false alarm rates at step 100 for cascade training

How to improve the performance of a Haar cascade classifier during training?

Cascade file trained in traincascade in cuda::CascadeClassifier

Cascade Training - nneg setting with prepared negative images

Haar Cascade training not working as intended

Need help with training cascade classifier

Stage threshold in cascade training

Issue with my train cascade

training haar cascade with single positive sample

I cannot run opencv_traincascade.exe (Train dataset for temp stage can not be filled. Branch training terminated. Cascade classifier can't be trained. Check the used training parameters.)

How to train more accurate Haar Cascades?

ocl:detectmultiscale error with traincascade

Opencv haar training parameters : Mode & symmentry

How is acceptance ratio caclulated?

Opencv cascade classifier got different result with different computers

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