Patent ID: 8238424
Filing Date: 2012-08-07
Classification: H04N

Abstract:
1. A method of determining parameters for pre-processing of a group of one or more pictures, the method comprising: determining one or more complexity parameters for the group of pictures; and encoding, using an encoder, the group of pictures in a video stream based at least in part on the one or more complexity parameters to transform the group of one or more pictures into an encoded group of pictures; wherein determining the one or more complexity parameters is based at least in part on spatial and temporal complexity of the group of pictures and wherein determining one or more complexity parameters comprises: determining a spatial complexity parameter for the group of pictures; determining a temporal complexity parameter for the group of pictures; determining a unified complexity parameter by combining the spatial and temporal complexity parameters; and adjusting one or both of the spatial and temporal complexity parameters for the group of pictures by a predetermined factor to adjust a relative strength of the parameters and wherein either or both of the spatial and temporal complexity parameters are normalized before calculating a unified complexity parameter.