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US 10,771,791 B2Granted
View-independent decoding for omnidirectional video
AssigneeMediatek Inc.
InventorsJian-Liang Lin, Hung-Chih Lin, Shen-Kai Chang
Life of this patent
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Abstract
For omnidirectional video such as 360-degree Virtual Reality (360VR) video, a video system that support independent decoding of different views of the omnidirectional video is provided. A decoder for such a system can extract a specified part of a bitstream to decode a desired perspective/face/view of an omnidirectional image without decoding the entire image while suffering minimal or no loss in coding efficiency.
Claims10
A method comprising:
- receiving a bitstream comprising an encoded sequence of omnidirectional images, each omnidirectional image having a plurality of views, each view having a set of view-specific data for decoding the view;
- receiving a selection of a view from the plurality of views of one of the omnidirectional images in the sequence;
- for the one of the omnidirectional images in the sequence, decoding the set of view-specific data of the selected view of the one of the omnidirectional images and also decoding a part of at least a first other view of the plurality of views of the one of the omnidirectional images that is adjacent to the selected view without decoding at least a second other view of the plurality of views of the one of the omnidirectional images that is not adjacent to the selected view;
- and
- providing the selected view of the omnidirectional image based on the decoded set of view-specific data for display.
2 more elements
An electronic apparatus comprising:
- a video decoding circuit capable of:
- receiving a bitstream comprising an encoded sequence of omnidirectional images, each omnidirectional image having a plurality of views, each view having a set of view-specific data for decoding the view;
- receiving a selection of a view from the plurality of views of one of the omnidirectional images in the sequence;
- for the one of the omnidirectional images in the sequence, decoding the set of view-specific data of the selected view of the one of the omnidirectional images and also decoding a part of at least a first other view of the plurality of views of the one of the omnidirectional images that is adjacent to the selected view without decoding at least a second other view of the plurality of views of the one of the omnidirectional images that is not adjacent to the selected view;
- and
- displaying the selected view of the omnidirectional image based on the decoded set of view-specific data;
- and
- a user interface circuit capable of providing the selection of the view.
5 more elements
Dependencies are inferred from the claim text.