using opencv backgroundSubtractorGMG to track moving and stationary objects [closed]
hi there, I am using backgroundSubtractorGMG from opencv 2.4.8 , using c++ in linux. I am also working only with grayscale images.
The specific subtractor is aimed to be used in variable light , video art installations, which is what I want to do too.
I am tweaking the values "decisionThreshold" and "learningRate" , in an attempt to find optimum settings for what I am trying to do.
What I try to implement is a human tracking mechanism. The human will not be moving all the time though. This affects me because the GMG seems to incorporate in the background , anything that is standing still in a frame for more than 3-4 seconds. How can I increase this time?Additionally, tweaking decisionThreshold and learningRate, does not have a significant effect on altering this bit.
What is more , once the tracked object (1 blob) has come to rest , after the 3-4 seconds, it starts to fade out , (dark spots appear and grow quickly). As these grow, the contour finder starts detecting more than just one object. This is also unwanted behaviour and I wonder if there are some settings I could use to fix this.
What can avoid