Patent Number: 8,792,549

Title: Decoder-derived geometric transformations for motion compensated inter prediction

Abstract: A method of estimating motion by estimating motion parameters of a complex motion model using reconstructed neighboring pixels of the current block and then applying the estimated motion parameters to the coordinates of the current block to determine motion compensated in a corresponding reference block. The parameters are not transmitted to a decoder and are derived at the decoder side. The encoder only sends a 1-bit control-flag to indicate whether the derived parameters should be used.

Inventors: Liu; Wei (San Jose, CA), Gharavi-Alkhansari; Mohammad (Santa Clara, CA), Maani; Ehsan (San Jose, CA), Tabatabai; Ali (Cupertino, CA)

Assignee: Sony Corporation

International Classification: H04N 7/12 (20060101); H04N 11/04 (20060101); H04N 11/02 (20060101)

Expiration Date: 7/29/12018