Image coding apparatus and method based on sub-picture
AssigneeLG Electronics Inc.
InventorHendry HENDRY
Life of this patent
Estimating the term…
Abstract
According to embodiments of the present document, whether or not virtual boundary-related information (ex. virtual boundary location-related information) is signaled in a sequence parameter set may be determined on the basis of whether or not sub-picture information is present. For example, when the sub-picture information is present for a corresponding sequence, the virtual boundary-related information (ex. the virtual boundary location-related information) may be signaled in the sequence parameter set.
Claims11
1-20. (canceled)
An image decoding method performed by a decoding apparatus, the method comprising:
- obtaining image information including residual information through a bitstream;
- generating reconstructed samples of a current picture based on the residual information;
- and
- generating modified reconstructed samples based on an in-loop filtering process for the reconstructed samples,
- wherein the image information includes a sequence parameter set (SPS), and
- wherein whether the SPS includes information on a number of virtual boundaries and information on positions of the virtual boundaries is determined based on whether the SPS includes subpicture related information.
An image encoding method performed by an encoding apparatus, the method comprising:
- generating residual samples for a current block;
- generating residual information based on the residual samples for the current block;
- generating in-loop filtering related information for reconstructed samples of a current picture;
- and
- encoding image information including the residual information and the in-loop filtering related information,
- wherein the image information includes a sequence parameter set (SPS), and
- wherein whether the SPS includes information on a number of virtual boundaries and information on positions of the virtual boundaries is determined based on whether the SPS includes subpicture related information.
A non-transitory computer-readable storage medium storing a bitstream generated by an image encoding method, the image encoding method comprising:
- generating residual samples for a current block;
- generating residual information based on the residual samples for the current block;
- generating in-loop filtering related information for reconstructed samples of a current picture;
- and
- encoding image information including the residual information and the in-loop filtering related information,
- wherein the image information includes a sequence parameter set (SPS), and
- wherein whether the SPS includes additional information related to virtual boundaries is determined based on whether the SPS includes subpicture related information.
Dependencies are inferred from the claim text.