Entropy coding-based feature encoding/decoding method and device, recording medium having bitstream stored therein, and method for transmitting bitstream
AssigneeLG Electronics Inc.
InventorsChulkeun Kim, Hyeong Moon Jang
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Abstract
Herein provided are a feature encoding/decoding method, a recording medium storing a bitstream generated by the feature encoding method and a method of transmitting the bitstream. The feature decoding method may comprise obtaining channel information of a current coding unit, determining a context model for the current coding unit based on the channel information; and decoding the current coding unit based on the context model. The channel information may comprise channel grouping information of a feature map including the current coding unit, and the context model is determined based on the channel grouping information.
Claims14
A feature decoding method performed by a feature decoding apparatus, the feature decoding method comprising:
- obtaining channel information of a current coding unit;
- determining a context model for the current coding unit based on the channel information;
- and
- decoding the current coding unit based on the context model,
- wherein the channel information comprises channel grouping information of a feature map including the current coding unit,
- wherein the context model is determined based on the channel grouping information,
- wherein the channel grouping information comprises channel group identification information specifying a channel group to which a current channel including the current coding unit belongs, and
- wherein the channel group identification information is obtained based on whether to perform an entropy coding synchronization process.
A feature encoding method performed by a feature encoding apparatus, the feature encoding method comprising:
- determining channel information of a current coding unit;
- determining a context model for the current coding unit based on the channel information;
- and
- encoding the current coding unit based on the context model,
- wherein the channel information comprises channel grouping information of a feature map including the current coding unit,
- wherein the context model is determined based on the channel grouping information,
- wherein the channel grouping information comprises channel group identification information specifying a channel group to which a current channel including the current coding unit belongs, and
- wherein the channel group identification information is obtained based on whether to perform an entropy coding synchronization process.
A method of transmitting a bitstream generated by a feature encoding method, the feature encoding method comprising:
- determining channel information of a current coding unit;
- determining a context model for the current coding unit based on the channel information;
- encoding the current coding unit based on the context model to generate the bitstream;
- and
- transmitting the bitstream,
- wherein the channel information comprises channel grouping information of a feature map including the current coding unit,
- wherein the context model is determined based on the channel grouping information,
- wherein the channel grouping information comprises channel group identification information specifying a channel group to which a current channel including the current coding unit belongs, and
- wherein the channel group identification information is obtained based on whether to perform an entropy coding synchronization process.
Dependencies are inferred from the claim text.