Patent ID: 9014267
Filing Date: 2015-04-21
Classification: H04N

Abstract:
1. A video encoding device which creates a reference frame image with a fractional pixel accuracy and compensates a motion for a video image formed of a time series of frame images, by using a filter for each frame image, comprising: a filter information storage unit that stores, in relation to a past frame image, a past filter which has been used for encoding of the past frame image; a filter decision unit responsive to receipt of a set of multiple candidate filters to select, from the set, a single filter which yields a minimum code quantity among the multiple candidate filters and is to be used for encoding of a current frame image, the set of multiple candidate filters including an adaptively generated filter and the past filter stored in the filter information storage unit in relation to the past frame image, wherein a code quantity for the adaptively generated filter is a sum of a code quantity of the current frame image encoded with the adaptively generated filter and a code quantity of adaptively generated filter itself, and a code quantify for the past filter consists only of a code quantity of the current frame image encoded with the past filter; and a filter information encoding unit that encodes a filter type identifier indicating a type of the single filter selected by the filter decision unit.