| Abstract |
In old movies we often may encounter different
types of degradations: noise, blurred edges of the objects (low
contrast), scratches, spots etc. It is therefore very important think
to find effective way of noise removal from degraded movie and
it is also one of the main and oldest problem in image sequence
procesing. The main difficulty here is the presence of motion.
The standard approach aproach is to use motion compensated
filters which is very time consuming. In addition it is almost
impossible to obtain perfect results in motion compensation.
The multistage median filter approach may be an interesting
alternative in this case. In this paper the main attention is paid
to the filtering of colorized image sequence with severe artificial
impulsive noise. Some new 3D filters, which stem from the
concept of multistage median filering, for color image sequence
processing are proposed. In addition a method of sharpening the
contrast of the blurred frames is presented. |
