Patent ID: 11871015
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for encoding a video bitstream, the method comprising:
receiving a sequence of video pictures and associated shutter interval information; and
generating a coded video bitstream comprising an encoded picture section including an encoding of the sequence of video pictures and a signaling section including shutter interval parameters for the sequence of video pictures, wherein the shutter interval parameters comprise:
a shutter interval time-scale parameter indicating the number of time units passing in one second;
a shutter interval clock-ticks parameter indicating a number of time units of a clock operating at the frequency of the shutter interval time-scale parameter;

a shutter-interval-duration flag indicating whether exposure duration information is fixed for all temporal sub-layers in the encoded picture section; and
if the shutter-interval-duration flag indicates that the exposure duration information is fixed, then a decoded version of the sequence of video pictures for all the temporal sub-layers in the encoded picture section is decoded by computing an exposure duration value based on the shutter interval time-scale parameter and the shutter interval clock-ticks parameter, else
the signaling section includes one or more arrays of sub-layer parameters, wherein values in the one or more arrays of sub-layer parameters combined with the shutter interval time-scale parameter are used to compute for each sub-layer a corresponding sub-layer exposure duration value for displaying a decoded version of the temporal sub-layer of the sequence of video pictures.