The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Aug. 05, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Attila Mihály, Dunakeszi, HU;
Bence Formanek, Budapest, HU;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A method () for reducing undesirable visual effects, such as judder, in a video image having one or more frames is disclosed. A server node () generates graphics layers from 3D objects, and augments the layers with the Z-layer information and motion information for the objects. The server node then groups () the graphics layers, encodes () the groups into a video stream such that every video frame of the stream is a composite video frame of the graphics layers, adds () the motion information to the composite video frame, and sends () the stream to a client device (). Upon receipt, the client device extracts () the motion information, compensates the positions of the graphics layers using the Z-layer information and the motion information, and applies a selected positional time-warp algorithm to compensate for the translational and rotational movement of the user's head (). The resultant layers are then combined into a video image and rendered () for the user.