1. A video decoder, comprising: a decoder for decoding a picture using a reduced resolution update mode, the picture being one of a set of pictures corresponding to multi-view content having different view points with respect to a same or similar scene, the picture representing one of the different view points wherein the reduced resolution update mode is used for at least one of view prediction and temporal prediction, wherein the reduced resolution update mode is used on a slice basis; and wherein said decoder applies a deblocking filtering operation to reduced resolution update block edges of a slice partitioned from the picture when the reduced resolution update mode is used for the slice, and a strength of the deblocking filtering operation is adapted based on at least one of the reduced resolution update mode and prediction information.