How can I apply median filter in temporal direction, if I am working on foreground detection using background subtraction ? And also how can I remove ghost effect from my resultant binary image?

I want to remove ghost effect from binary image

[Jan]

If all you have is an image, there is no "temporal direction". Please explain, what the input is.

[Bibhu Prasad Das]

Sir, I want to apply it on number of frames

Answer 1

[Santhana Raj]

Hi,

The area of ghost image removal is a very vast research topic. For effective ghost image removal, there are many methods based on how the ghost image came in in the first place. To remove the ghost image which comes due to image subtraction, and if the object is always brighter than the background, the ghost will occur in -ve values. with this info you can remove it.

Or if you know the direction of the moving object, you know which part is object and which part is ghost. Based on this information, you can remove.

These are two very basic methods. Multitude of methods are available in literature. Google would help you in that.

Raj

[Bibhu Prasad Das]

Hello Santhana, as you have mentioned "the ghost will occur in -ve values. " could you please elaborate this ! How will I check it.

Thanks