Patent attributes
A reception device including processing circuitry is provided. The processing circuitry is configured to receive a video stream that includes, for each of a plurality of units of N consecutive pictures of a plurality of pictures, an encoded averaged picture and encoded N−1 of the N consecutive pictures of the respective unit. The averaged picture is generated based on an averaging process in which a non-linear average of the N consecutive pictures of the respective unit is calculated with different gains. The video stream includes a first sub-layer having the encoded averaged pictures and a second sub-layer having the encoded N−1 pictures of the plurality of units. The processing circuitry is configured to receive information including averaging process information indicating a method for the averaging process, and process the received video stream in accordance with the averaging process information.
