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US 10,708,610 B2Granted
Method for encoding and decoding in parallel processing and apparatus using same
AssigneeLG Electronics Inc.
InventorsHendry Hendry, Byeongmoon Jeon, Jungsun Kim, Sangoh Jeong
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Abstract
A video encoding method includes a step of encoding substreams which are rows of largest coding units (LCUs) in parallel with each other, and a step of transmitting a bit stream including the encoded substreams, where the number of the substreams may be the same as the number of entry points.
Claims14
A video decoding method, by a video decoding apparatus, comprising:
- receiving a bitstream including information on a slice header and information on substreams for a current slice segment;
- obtaining entry point information for the substreams from the slice header;
- and
- decoding the substreams based on the entry point information to reconstruct a picture, wherein decoding the substreams includes:
- deriving prediction information and residual information on a block of a current substream;
- deriving prediction samples on the block based on the prediction information;
- deriving residual samples on the block based on the residual information;
- generating reconstructed samples to generate the reconstructed picture based on the prediction samples and the residual samples;
- and
- performing deblocking filtering on the reconstructed picture,
- wherein the picture includes multiple largest coding units (LCUs),
- wherein a number of the substreams is equal to a number of LCU rows in the current slice segment in the picture,
- wherein the entry point information includes number information indicating a number of entry point offsets, and
- wherein the number of the substreams is derived based on the number information in the slice header.
11 more elements
A video encoding method, by a video encoding apparatus, comprising:
- encoding substreams for a current slice segment in a picture;
- and
- generating a bitstream including information on a slice header and information on substreams for the current slice segment,
- wherein the slice header includes entry point information for the substreams,
- wherein the picture includes multiple largest coding units (LCUs),
- wherein a number of the substreams is equal to a number of LCU rows in the current slice segment in the picture,
- wherein the entry point information includes number information indicating a number of entry point offsets, and
- wherein the number of the substreams is derived based on the number information in the slice header.
5 more elements
A non-transitory decoder-readable storage medium storing a bitstream comprising a decoder executable program, the decoder executable program, when executed, causing a decoder to perform the following steps:
- obtaining entry point information for substreams from a slice header, wherein the bitstream includes information on the slice header and information on the substreams for a current slice segment;
- and
- decoding the substreams based on the entry point information to reconstruct a picture,
- wherein decoding the substreams includes:
- deriving prediction information and residual information on a block of a current substream;
- deriving prediction samples on the block based on the prediction information;
- deriving residual samples on the block, wherein the residual samples are derived based on the residual information;
- generating reconstructed samples to generate the reconstructed picture based on the prediction samples and the residual samples;
- and
- performing deblocking filtering on the reconstructed picture,
- wherein the picture includes multiple largest coding units (LCUs),
- wherein a number of the substreams is equal to a number of LCU rows in the current slice segment in the picture,
- wherein the entry point information includes number information indicating a number of entry point offsets, and
- wherein the number of the substreams is derived based on the number information in the slice header.
11 more elements
Dependencies are inferred from the claim text.