Stereoscopic video processing with separable 2D filter

摘要

A two-dimensional filter operates in accordance with a three-dimensional television signal having a basic layer, a reference processing unit layer and an enhancement layer. The two-dimensional filter generates a processed base layer reference picture from a base layer reference picture via a one-dimensional horizontal filter that horizontally filters the base layer reference picture to generate a first filtered base layer reference picture and a one-dimensional vertical filter, coupled to, but separable from, the one-dimensional horizontal filter, that vertically filters the first filtered base layer reference picture to generate a pre-processed base layer reference picture.

主权项

1. A two-dimensional filter for use in processing a three-dimensional television signal in accordance with a basic layer, a reference processing unit layer and an enhancement layer, wherein the two-dimensional filter generates a processed base layer reference picture from a base layer reference picture, the two-dimensional filter comprising:
a one-dimensional horizontal filter that horizontally filters the base layer reference picture in accordance with a first multi-tap filter function having a plurality of first filter coefficients to generate a first filtered base layer reference picture; a one-dimensional vertical filter, coupled to, but separable from, the one-dimensional horizontal filter, that vertically filters the first filtered base layer reference picture in accordance with a second multi-tap filter function having a plurality of second filter coefficients to generate a pre-processed base layer reference picture; and a control module, coupled to the one-dimensional horizontal filter and the one-dimensional vertical filter, that responds to reference processing unit configuration data that indicates one of a plurality of picture types to select values of the plurality of first filter coefficients and values of the plurality of second filter coefficients based on the one of a plurality of picture types.