Hi Sameera, We just detect the humans and get their count. I used hog pedestrian detection cascade for human detection. Now we are working on Aircraft detection system. I'm trying to train a cascade using opencv-traincascade.
Thank You. On Mon, Sep 19, 2016 at 6:40 PM, Sameera Ramasinghe <samee...@wso2.com> wrote: > Hi Anusha, > > I've been working on human activity recognition for some time now, and > might be able to give some guide lines. I am not very clear on the final > goal though. Are you trying to classify actions, or to detect objects?. I > think it's important to differentiate between these two as they are > different research areas. Action classification is a red hot research > topic these days and quite complex due to the high dimensionality of data. > You need to consider temporal evolution and the dependency for that. > > On Mon, Sep 19, 2016 at 6:43 AM, Geesara Prathap <gees...@wso2.com> wrote: > >> Hi Anusha, >> >> Number of positive and negative samples are dependent upon an object >> which is trying to train. Becuase if you try to train small object like >> rectangle then few positive samples would be enough. If there are more >> variation in the object which requires hundreds and even thousands of >> positive samples for like humans. Also, Intel Threading Building Blocks >> (Intel® TBB) needs to be enabled when building OpenCV so as to optimize >> and parallelize some of the functions which help to make haar cascade >> classifier in an optimal way. >> >> Thanks, >> Geesara >> >> On Thu, Sep 15, 2016 at 9:36 AM, Anusha Jayasundara <anus...@wso2.com> >> wrote: >> >>> 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 <samee...@wso2.com> >>> 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 <gees...@wso2.com> >>>> 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 <srin...@wso2.com> >>>>> 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 < >>>>>> anus...@wso2.com> 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 < >>>>>>> sume...@wso2.com> wrote: >>>>>>> >>>>>>>> On Fri, Sep 9, 2016 at 11:24 AM, Anusha Jayasundara < >>>>>>>> anus...@wso2.com> 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 <gees...@wso2.com >>>>>>>>> > 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 < >>>>>>>>>> anus...@wso2.com> 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 < >>>>>>>>>>> srin...@wso2.com> 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 < >>>>>>>>>>>> sanj...@wso2.com> 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 < >>>>>>>>>>>>> srin...@wso2.com> 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: sanj...@wso2.com; 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 >>>>>>>>>>> Architecture@wso2.org >>>>>>>>>>> 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 >>>>>>>>> Architecture@wso2.org >>>>>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> /sumedha >>>>>>>> m: +94 773017743 >>>>>>>> b : bit.ly/sumedha >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Architecture mailing list >>>>>>>> Architecture@wso2.org >>>>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> >>>>>>> Anusha Jayasundara >>>>>>> Intern Software Engineer >>>>>>> WSO2 >>>>>>> +94711920369 >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Architecture mailing list >>>>>>> Architecture@wso2.org >>>>>>> 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 >>>>>> Architecture@wso2.org >>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Geesara Prathap Kulathunga >>>>> Software Engineer >>>>> WSO2 Inc; http://wso2.com >>>>> Mobile : +940772684174 >>>>> >>>>> >>>>> _______________________________________________ >>>>> Architecture mailing list >>>>> Architecture@wso2.org >>>>> 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: samee...@wso2.com >>>> Mobile: +94714155561 >>>> >>>> _______________________________________________ >>>> Architecture mailing list >>>> Architecture@wso2.org >>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>> >>>> >>> >>> >>> -- >>> >>> Anusha Jayasundara >>> Intern Software Engineer >>> WSO2 >>> +94711920369 >>> >> >> >> >> -- >> Geesara Prathap Kulathunga >> Software Engineer >> WSO2 Inc; http://wso2.com >> Mobile : +940772684174 >> >> >> _______________________________________________ >> Architecture mailing list >> Architecture@wso2.org >> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >> >> > > > -- > *Sameera Ramasinghe* > Software Engineer, WSO2 Inc.; http://wso2.com > mobile: *+94 714489682* > -- Anusha Jayasundara Intern Software Engineer WSO2 +94711920369
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