Abstract
In the many kinds of video system, an objective picture quality estimation method without the reference picture is required. To respond this, non-reference estimation methods for the block artifact, the mosquito noise and the spatial blur have been studied. On the other hand, the degradation of delicate detail becomes significant on the recent video coding. Such degradation named "coring degradation" should also be estimated without reference picture. To realize this, we propose the estimation method for the coring degradation using the spatial blur estimation and edge/flat area division. The spatial blur is estimated by using DCT, and, the band division and level of blur of each area is compared. As the results of evaluation, the coring degradation factor becomes high in the coding with de-blocking filtering. This means that the proposed method works as the estimation of coring degradation.
