Patent ID: 8000390
Filing Date: 2011-08-16
Classification: H04N

Abstract:
1. A method, in a video coder, for selecting candidate intra prediction modes for a block of samples in a picture, said method comprising: obtaining directional information in at least one direction for a block of samples, wherein said directional information is derived from at least one of: a first plurality of pairs of samples in said block of samples, wherein a first pair of samples in said first plurality of pairs of samples is not oriented in the same direction as a second pair of samples in said first plurality of pairs of samples, a second plurality of pairs of samples in said block of samples, wherein at least one of said pairs of samples in said second plurality of samples is not adjacent to any other of said pairs of samples in said second plurality of samples, and a third plurality of pairs of samples in said block of samples, wherein at least one of said pairs of samples in said third plurality of pairs of samples comprises a sample from the interior of said block of samples; and wherein any sample used in said obtaining is a sample within said block of samples; and selecting at least one candidate intra prediction mode for said block of samples based on said directional information.