Abstract :

In this seminar, the Bilateral Filter is shown to represent an estimator for piecewise constant images. This estimation interpretation allows for a targeted choice of filter parameters for the restoration of decoded images. It also leads to improvements of the Bilateral Filter by considering varying noise and correlations in the decoded image. For the example of the prevalent JPEG standard, rules to derive signal-adaptive parameters for the adapted BF from the decoded data are presented. By applying the adapted filter, significant objective as well as visual improvements over the originally decoded image can be observed.