Abstract
This paper focuses on adaptive structure of LUM
(lower-upper-middle) smoothers for noisy image sequences. For the
balance between noise suppression and signal-detail preservation,
the LUM smoothers are widely used in smoothing applications. The
amount of smoothing done by LUM smoothers is controlled by tuning
parameter. However, the smoothing level is fixed for whole image.
Thus, the excessive or insufficient smoothing can be performed.
This problem is solved by a new method based on the adaptive
controlled level of smoothing. A new method has excellent
performance of the noise reduction in the environments corrupted
by the impulse noise. In addition, minimal signal-detail and
motion blurring can be observed. The performance of proposed
method is evaluated through objective criteria and compared with
traditional temporal, spatial, and spatiotemporal LUM smoothers.