Abstract: There are provided method and apparatus for video motion process optimization using a hierarchical cache. A storage method for a video motion process includes configuring a hierarchical cache to have one or more levels, each of the levels of the hierarchical cache corresponding to a respective one of a plurality of levels of a calculation hierarchy associated with calculating sample values for the video motion process. The method also includes storing a particular value for a sample relating to the video motion process in a corresponding level of the hierarchical cache based on which of the plurality of levels of the calculation hierarchy the particular value corresponds to, when the particular value is non-existent in the hierarchical cache.

Abstract: A tubular carton or pack is of triangular cross section for carrying, for example, a rolled-up paper product. The carton is formed from a blank which is folded-up to form an inner lining and then an outer shell. Each end is closed by a triangular end piece (24) which is retained in position by retainer flaps (25) which are inserted between the inner lining and outer shell. The carton may have a short end portion arranged to hinge open along a fold line formed across the base side of the carton, to allow easy access to its contents.