Noise modeling and reduction in Video when we have just noisy video We would like to send a video (sequence of images), we have limit bandwidth. If there is a lot of noise, the required bandwidth (bitrate) is needed to send the video+noise becomes high that is not suitable. We have just a noisy file (i.e. we do not have noise separately). The solution is to model the noise. we do not have any other information rather than a noisy video. How we can reduce the noise? How we can model the noise?
Reduction of Noise in a video depends on what type of noise is present in the video.
The noise can be reduced by filters which are all present [There are software for this] and many type of filters such as median ,mean,wiener filter.
And The noise model can be build to add noise to the video there are many matlab code as well as software also there.
Gaussian ,salt and pepper,poisson and speckle noise model can be build and by adding the image sequence with the video you will get a noisy video.

imnoise(video,noisename);


this will give noisy video as output.

If you have any doubt ask me.