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Questions tagged [mog]

Mixture of Gaussians (MOG) is a computer vision technique used for modeling the background pixels of an image like mixture of Gaussians of different weight that represent the pixel intensity.

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OpenCV: how to use createBackgroundSubtractorMOG

I was trying to go through this tutorial på OpenCV.org: http://docs.opencv.org/trunk/doc/tutorials/video/background_subtraction/background_subtraction.html#background-subtraction The MOG pointer is initialized as Ptr pMOG;…
Rickz0r
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How to use cv::BackgroundSubtractorMOG in OpenCV?

I'm using OpenCV2.2 to implement moving objects detection with the method of Background Subtraction. And I use the Gaussian Mixture Model(GMM) method to model the background reference image. I directly get the foreground pixels(or foreground mask)…
visualassit
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Mask for BackgroundSubtractorMOG2

How can I tell BackgroundSubtractorMOG2 which pixels to update to the background model and which pixels shouldn't. I am facing problem when there's an object entered the scene and stopped for a few ten seconds, the object will be absorbed into the…
Yaobin Then
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Get background model from BackgroundSubtractorMOG2 in python

I need to get the background model of a Mixture of Gaussian with opencv. I know that there is a method called getBackgroundImage in C++ I searched if it is possible to get it in python interface but I haven't get good result. I Tried opencv…
EmanuelOverflow
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Any tutorial/ good documentation on how to use the Mixture of Gaussians opencv implementation?

I have found OpenCV code that uses CvGaussBGStatModelParams structure, cvCreateGaussianBGModel, and other related functions. However, I haven't been able to find any explanations for how they work and how they are to be used and what they mean. Any…
Wall-EEEEE
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OpenCV foreground detection with adaptive background, static objects too

I have a background image of a plain surface. My goals is to track objects that are positioned/moved over the surface. I'm using MOG2 to find foreground objects with a learning rate of 0, so the background is not updated (otherwise a static object…
blow
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MOG background subtraction: history parameter not working

I'm trying to use MOG background subtraction but the "history" function doesn't seem to work. OpenCV 2.4.13 Python (2.7.6) Observation: The program appears to use the very first frame it captures for all future background subtractions. Expectation:…
chip
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Opencv MOG and GMG subtractor not working

i have been going through opencv mog and gmg background subtraction, i have installed opencv 3.3.0 from https://github.com/Itseez/opencv_contrib and also opencv from the same version, but still i couldn't find MOG not working, where as mog 2 is…
Arvind
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How to use BackgroundSubtractorMOG2 for images

I am pretty new to OpenCV and I am stuck at the moment. I am dealing with images, not a video. Since I will have same background in my project, I thought it would be easier to work, if I could remove my background. But first, I have to ask one…
massakrienen
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opencv BackgroundSubtractorMOG in openframeworks

does anybody knows how to implement nowadays an opencv background subtractor like MOG or MOG2? I tried to use ofxCvMOG2 library (https://github.com/naus3a/ofxCvMOG2) but when I run the example the error "cannot create an instance of an abstract…
rojele
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How to disable shadow detection in MoG2

I am using C++ and Opencv 2.3.1 for background subtraction. I have tried many times to change the parameters of Mog2 in order to disable shadow detection feature also i have tried what other people suggest on the internet. however, the shadow…
Zakarya
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How to get foreground mask given background image

Say I have a background image bg and the current frame I, how can I get the foreground mask fgmask? Note: using the stander way fgmask = abs(bg-I) > th not giving an accurate result, lot of noise found. I'm aware of MOG2 function in opencv but the…
Ehab AlBadawy
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Background Subtraction: Creating an ensemble structure of mixture of gaussians

I want to improve the background subtraction in a video by modifying the standard MOG algorithm and creating an ensemble structure of Gaussians modeled on various features of a frame like normalized chromaticity values, spatial gradient and texture.…
aditya94
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Mixture of Gaussians - C

Does anybody know of a good implementation of the Mixture of Gaussians (must be for C), which is able to work with OpenCV? I know there's an undocumented implementation already included in OpenCV for C++, however this must be in C. I don't fancy…
NOP
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Getting background after removing foreground in OpenCV background subtraction

I am using background subtraction, in particular MOG2 for video bgs with OpenCV. I am currently getting the original frame and the foreground mask in two seperate opencv windows. I want to get a display of the background with the foreground removed.…
devman3211
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