Hi Geesara,
I used opencv-trainecascade function to train a cascade, and there is a function called opencv-createsamples, we can use this to create positive data set by giving only one positive image. I used this method to create the positive data set. but the accuracy of the detection is very low, I think it is because I used very low-resolution image set. Now I'm trying to train using mid-resolution image set(300-150). Thanks On Wed, Sep 14, 2016 at 4:31 PM, Sameera Gunarathne <[email protected]> wrote: > Hi Geesara, > > +1 for suggesting a cascade classifier(haar-cascade) for this > implementation. With a sufficient number of samples for train using haar > features would provide lesser rate of false positive results. AFAIK using > of a background subtraction[1] method for pre processing can be used to > reduce false positive results for the classification. > > [1] http://docs.opencv.org/3.1.0/db/d5c/tutorial_py_bg_subtraction.html > > Thanks, > Sameera. > > On Tue, Sep 13, 2016 at 10:18 PM, Geesara Prathap <[email protected]> > wrote: > >> Hi Srinath, >> >> OpenCV provides us set of interesting tools which can be used to train >> classifiers based on our requirements. Some time ago I trained >> a classifier[1] and controlled drone in real time. This article explains[1] >> in a proper way how to train our own model using haar classifier based on >> Adaboost which OpenCV provide. >> >> 1.https://github.com/GPrathap/opencv-haar-classifier-training >> 2.http://coding-robin.de/2013/07/22/train-your-own-opencv-ha >> ar-classifier.html >> >> Thanks, >> Geesara >> >> On Tue, Sep 13, 2016 at 10:40 AM, Srinath Perera <[email protected]> >> wrote: >> >>> Anusha, we should try Adaboost as Geesara mentioned ( when we done with >>> what we are doing). >>> >>> --Srinath >>> >>> On Sun, Sep 11, 2016 at 10:52 AM, Anusha Jayasundara <[email protected]> >>> wrote: >>> >>>> Hi Sumedha, >>>> >>>> I just detect the face. I went through few articles about face >>>> recognition, and I have a sample code also, but it is not that much >>>> accurate. >>>> >>>> Thanks, >>>> >>>> >>>> On Fri, Sep 9, 2016 at 11:26 AM, Sumedha Rubasinghe <[email protected]> >>>> wrote: >>>> >>>>> On Fri, Sep 9, 2016 at 11:24 AM, Anusha Jayasundara <[email protected]> >>>>> wrote: >>>>> >>>>>> Hi Geesara, >>>>>> >>>>>> I used Haar full body cascade and HoG pedestrian detection cascade, >>>>>> In Haar full body cascade they have mentioned that, upper body detection, >>>>>> lower body detection and full body detection is there in the cascade. >>>>>> even >>>>>> thought it is there, once I tried to use separate upper body detection >>>>>> cascade with full body detection cascade. but when it is implemented >>>>>> system >>>>>> took long time to process even a simple video with two person. >>>>>> I'll upload my code to Github repo. >>>>>> I still didn't work with real-time CCTV videos ,but I was able to >>>>>> build a real-time face detection system using the web cam of my laptop >>>>>> and >>>>>> it had issues on processing as the machine couldn't handle it. >>>>>> >>>>> >>>>> Anusha, >>>>> Did you just detect the face or associated that with a name as well? >>>>> >>>>> >>>>> >>>>>> We thought of doing video processing out side of the CEP and send the >>>>>> process data in to the CEP.(i.e human count, time_stamp, frame rate >>>>>> ,etc..). For now I send those data into CEP as a Json POST request. >>>>>> >>>>>> >>>>>> Thank You, >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Wed, Sep 7, 2016 at 11:57 PM, Geesara Prathap <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Hi Anusha, >>>>>>> >>>>>>> A few suggestions to improve your implementation. >>>>>>> Haar and HoG are used to get visual descriptors which can be used >>>>>>> to describe an image. Then both of them are using boosting >>>>>>> classification >>>>>>> like AdaBoost to tune up its performance. When you are using haar-like >>>>>>> feature extraction method you need to use more that one model in order >>>>>>> to >>>>>>> make the final decision. Let's say you are using full body classifier >>>>>>> for >>>>>>> human detection. Along with this classifier, can’t detect upper body >>>>>>> properly. When haar-like feature extraction is used you may have to use >>>>>>> more that one classifier and the final decision will be taken >>>>>>> aggregation >>>>>>> or composition of those results. Next important thing is >>>>>>> pre-processing. It >>>>>>> may be composed of color balancing, gamma correction , changing color >>>>>>> space >>>>>>> and some of the factors which unique to the environment which you're >>>>>>> trying out. Processing model is also more important since this is to be >>>>>>> done in real time. If you can explain your algorithm we will able to >>>>>>> provide some guidance in order to improve your algorithm to get a better >>>>>>> result. >>>>>>> >>>>>>> Since the main intention of this project is to facilitate support >>>>>>> for images process in the WSO2 Platform. I am just curious to know, how >>>>>>> do >>>>>>> you process the video stream in real-time with the help of CEP. Since >>>>>>> you >>>>>>> are using CCTV feeds which might be using RTSP or RTMP, where do you >>>>>>> process the incoming video stream? Are you to develop RTSP or RTMP input >>>>>>> adapters so as to get input stream into CEP? >>>>>>> >>>>>>> Thanks, >>>>>>> Geesara >>>>>>> >>>>>>> On Wed, Aug 31, 2016 at 8:16 PM, Anusha Jayasundara < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> The Progress of the video processing project is described in the >>>>>>>> attached pdf. >>>>>>>> >>>>>>>> On Wed, Aug 31, 2016 at 11:39 AM, Srinath Perera <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Anusha has the people counting from video working through CEP and >>>>>>>>> have a dashboard. ( Anusha can u send an update with screen shots?). >>>>>>>>> We >>>>>>>>> will also setup a meeting. >>>>>>>>> >>>>>>>>> Also seems new Camaras automatically do human detection etc and >>>>>>>>> add object codes to videos, and if we can extract them, we can do some >>>>>>>>> analysis without heavy processing as well. Will explore this too. >>>>>>>>> >>>>>>>>> Also Facebook opensourced their object detection code called >>>>>>>>> FaceMask https://code.facebook.com/posts/561187904071636. Another >>>>>>>>> to look at. >>>>>>>>> >>>>>>>>> --Srinath >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Mon, Aug 15, 2016 at 4:14 PM, Sanjiva Weerawarana < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Looks good! >>>>>>>>>> >>>>>>>>>> In terms of test data we can take the video cameras in the LK >>>>>>>>>> Palm Grove lobby as an input source to play around with people >>>>>>>>>> analysis. >>>>>>>>>> For vehicles we can plop a camera pointing to Duplication Road and >>>>>>>>>> get >>>>>>>>>> plenty of data :-). >>>>>>>>>> >>>>>>>>>> I guess we should do some small experiments to see how things >>>>>>>>>> work. >>>>>>>>>> >>>>>>>>>> Sanjiva. >>>>>>>>>> >>>>>>>>>> On Wed, Aug 10, 2016 at 3:02 PM, Srinath Perera <[email protected] >>>>>>>>>> > wrote: >>>>>>>>>> >>>>>>>>>>> Attached document list some of the initial ideas about the >>>>>>>>>>> topic. Anusha is exploring some of the ideas as an intern project. >>>>>>>>>>> >>>>>>>>>>> Please comment and help ( specially if you have worked on this >>>>>>>>>>> area or has tried out things) >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Thanks >>>>>>>>>>> Srinath >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> ============================ >>>>>>>>>>> Srinath Perera, Ph.D. >>>>>>>>>>> http://people.apache.org/~hemapani/ >>>>>>>>>>> http://srinathsview.blogspot.com/ >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Sanjiva Weerawarana, Ph.D. >>>>>>>>>> Founder, CEO & Chief Architect; WSO2, Inc.; http://wso2.com/ >>>>>>>>>> email: [email protected]; office: (+1 650 745 4499 | +94 11 214 >>>>>>>>>> 5345) x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 >>>>>>>>>> 650 265 8311 >>>>>>>>>> blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva >>>>>>>>>> Lean . Enterprise . Middleware >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> ============================ >>>>>>>>> Srinath Perera, Ph.D. >>>>>>>>> http://people.apache.org/~hemapani/ >>>>>>>>> http://srinathsview.blogspot.com/ >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> >>>>>>>> Anusha Jayasundara >>>>>>>> Intern Software Engineer >>>>>>>> WSO2 >>>>>>>> +94711920369 >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Architecture mailing list >>>>>>>> [email protected] >>>>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Geesara Prathap Kulathunga >>>>>>> Software Engineer >>>>>>> WSO2 Inc; http://wso2.com >>>>>>> Mobile : +940772684174 >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>> Anusha Jayasundara >>>>>> Intern Software Engineer >>>>>> WSO2 >>>>>> +94711920369 >>>>>> >>>>>> _______________________________________________ >>>>>> Architecture mailing list >>>>>> [email protected] >>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> /sumedha >>>>> m: +94 773017743 >>>>> b : bit.ly/sumedha >>>>> >>>>> _______________________________________________ >>>>> Architecture mailing list >>>>> [email protected] >>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> Anusha Jayasundara >>>> Intern Software Engineer >>>> WSO2 >>>> +94711920369 >>>> >>>> _______________________________________________ >>>> Architecture mailing list >>>> [email protected] >>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>> >>>> >>> >>> >>> -- >>> ============================ >>> Srinath Perera, Ph.D. >>> http://people.apache.org/~hemapani/ >>> http://srinathsview.blogspot.com/ >>> >>> _______________________________________________ >>> Architecture mailing list >>> [email protected] >>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>> >>> >> >> >> -- >> Geesara Prathap Kulathunga >> Software Engineer >> WSO2 Inc; http://wso2.com >> Mobile : +940772684174 >> >> >> _______________________________________________ >> Architecture mailing list >> [email protected] >> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >> >> > > > -- > Sameera Gunarathne > Software Engineer, WSO2 Inc. http://wso2.com > <http://l.facebook.com/l.php?u=http%3A%2F%2Fwso2.com&h=gAQEswASa> > Email: [email protected] > Mobile: +94714155561 > > _______________________________________________ > Architecture mailing list > [email protected] > https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture > > -- Anusha Jayasundara Intern Software Engineer WSO2 +94711920369
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