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2013-02-02 01:52:02 -0500 asked a question AdaBoost with SVM as weak learner

hi. i want to know if there are any implementation of adaboost that uses an svm as a weak classifier ? i want to use it in cascade classifier to detect faces faster.

2013-02-02 01:46:03 -0500 commented answer Why haar features often used with AdaBoost?

Can we use SVM as the weak classifiers in Adaboost ?

2012-12-14 23:56:58 -0500 asked a question multi threading cascadeclasifier

hi. the cascadeclassifier is multithreaded with tbb but when i don't build opencv with tbb it still working concurrently and get more than 25% of cpu ( more than one core). how can i disable multithreding of cascadeclassifire ?!

2012-11-30 23:00:47 -0500 received badge  Scholar (source)
2012-11-30 22:24:05 -0500 commented answer cascadeclassifier value

not yet !, becuse i dont want to use those individually. i want to use only CascadeClassifier::detectmultiscale() and to build my project.

2012-11-28 07:17:42 -0500 commented answer cascadeclassifier value

cascadeclassifire has two detectmultiscale functions that one of them calls another one. the main function is : void CascadeClassifier::detectMultiScale( const Mat& image, vector<Rect>& objects, vector<int>& rejectLevels, vector<double>& levelWeights, double scaleFactor, int minNeighbors, int flags, Size minObjectSize, Size maxObjectSize, bool outputRejectLevels ) we can use levelweight to compute probability of true detection. :)

2012-11-28 07:12:16 -0500 commented answer cascadeclassifier value

thanks, your comment made to read opencv source code, and i found the answer of my question, as below.

2012-11-28 02:41:47 -0500 asked a question cascadeclassifier value

hi. how can i get a value from detectmultiscale function that expresses a probability of true detection ?.
thanks

2012-11-19 00:09:20 -0500 asked a question latentSVM vs CascadeClassifier

hi, I want to compare LatentSVM and CascadeClassifire in the term of accuracy and speed. Which one is faster and which one is more accurate for an object detection task. thanks

2012-11-18 23:17:40 -0500 commented question object detection in open cv

use default values.

2012-11-18 23:12:17 -0500 received badge  Supporter (source)
2012-11-18 23:08:16 -0500 commented answer multithreaded cascade classifire

thakns, I found following sentence under documentation of CascadeClassifier::detectMultiScale, that is : The function is parallelized with the TBB library. http://docs.opencv.org/modules/objdetect/doc/cascade_classification.html#cascadeclassifier-detectmultiscale

2012-11-18 22:10:27 -0500 commented answer multithreaded cascade classifire

I know traincascade can works multithreaded, but i want use cascadeclassifier mutithreaded. I want multi threading in detection stage not in learning stage !

2012-11-18 07:08:40 -0500 asked a question latentsvm xml file

hi How can i build my own xml file for latentsvm detector to detect my own model in an movie or camera ? I want to know if there is any program like traincascade.exe to train my latentsvm detector ? thanks

2012-11-18 07:00:22 -0500 asked a question multithreaded cascade classifire

hi i want to know whether or not the cascadeclassifire can detect multithread ? and if yes, how can i enable multithreading in cascadeclassifire. I use detectmultiscale() function but i think it is not multithread. I want to use it in an realtime software and want to use it in multithreaded way. thanks