OpenCV 3.0 SVM crashes for large number of iterations (Bug #4207)

Added by stav ares about 10 years ago. Updated almost 10 years ago.

Status:	Done	Start date:	2015-02-19
Priority:	Normal	Due date:
Assignee:	Maksim Shabunin	% Done:	0%
Category:	ml
Target version:	3.0
Affected version:	branch 'master' (3.0-dev)	Operating System:	Windows
Difficulty:	Medium	HW Platform:	x64
Pull request:	https://github.com/Itseez/opencv/pull/3931

Description

Information about the issue are here.

http://answers.opencv.org/question/55627/opencv-30-svm-crashes-for-large-number-of-iterations/

In short, its about a bug that causes Undefined Behavior if the number of iterations is larger than a (rather small) number, which doesn't happen if LibSVM is used instead.

Related issues

related to Bug #4229: SVM bug in OpenCV 3.0

Done

2015-03-05

Associated revisions

Revision e26b941e
Added by Vadim Pisarevsky over 9 years ago

Merge pull request #4207 from alalek:fix_calib3d_test

History

#1
Updated by stav ares about 10 years ago

Target version set to 3.0-beta

#2
Updated by Nisarg Thakkar about 10 years ago

Can you post your training data?

#3
Updated by stav ares almost 11 years ago

Nisarg Thakkar wrote:

Can you post your training data?

As you have probably seen by now, i have posted my training data in the link provided. they are hosted as .jpg, but are actually in the standard .xml format that opencv is accepting. Download them, rename them to .xml, and opencv will open them to get the cv::Mat. Thanks for the attention, if you need anything else, or have any ideas how to help, please tell me.