Video encoding method, video decoding method, video encoding apparatus, and video decoding apparatus
AssigneeSun Patent Trust
InventorsKengo Terada, Takahiro Nishi, Hisao Sasai, Satoshi Yoshikawa
Life of this patent
Estimating the term…
Abstract
A video encoding method of performing scalable encoding on input video includes: determining a total number of layers of the scalable encoding to be less than or equal to a maximum layer count determined according to a frame rate; and performing the scalable encoding on the input video to generate a bitstream, using the determined total number of layers.
Claims17
A video encoding method of performing scalable encoding on video, the video encoding method comprising:
- determining, for the video, a total number of layers that is less than or equal to a maximum layer count based on a frame rate of the video;
- and
- performing the scalable encoding on pictures included in the video to generate a bitstream, using a layer structure including as many layers as the total number of layers determined,
- wherein a shallowest layer of the layers includes at least one picture, and the shallowest layer includes no B-picture, the I-picture being an intra-frame prediction picture, the B-picture being a bi-directional reference prediction picture.
A video decoding method of decoding a bitstream obtained by performing scalable encoding on pictures included in a video using a layer structure including as many layers as a total number of layers, the video decoding method comprising:
- decoding the pictures in the bitstream;
- decoding first information in the bitstream, the first information indicating the total number of layers;
- and
- reordering, using the total number of layers indicated in the first information, the pictures included in the video decoded, and outputting the pictures reordered,
- wherein the total number of layers is less than or equal to a maximum layer count predetermined according to a frame rate of the bitstream of the video, and
- a shallowest layer of the layers includes at least an I-picture, the shallowest layer includes no B-picture, the I-picture being an intra-frame prediction picture, the B-picture being a bi-directional reference prediction picture.
Dependencies are inferred from the claim text.