Supporting multiple target display types
AssigneeDolby Laboratories Licensing Corporation
InventorsAjit Ninan, Gregory John Ward
Life of this patent
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Abstract
A sequence of base layer images for a base reference image display and a set of one or more sequences of beta scale maps corresponding to one or more non-base reference image displays are generated. A subset of one or more sequences of beta scale maps is determined in the set of one or more sequences of beta scale maps based at least in part on display capabilities of a target image display. The sequence of base layer images, along with the subset of one or more sequences of beta scale maps, is encoded into a video signal to cause a recipient device of the video signal to generate a sequence of display images from the sequence of base layer images and the subset of one or more sequences of beta scale maps for rendering on the image display.
Claims17
A method comprising:
- generating a sequence of base layer images for a base reference image display and a set of one or more sequences of beta scale maps corresponding to one or more non-base reference image displays;
- determining a subset of one or more sequences of beta scale maps in the set of one or more sequences of beta scale maps based at least in part on display capabilities of a target image display;
- encoding the sequence of base layer images, along with the subset of one or more sequences of beta scale maps, into a video signal to cause a recipient device of the video signal to generate a sequence of display images, from the sequence of base layer images and the subset of one or more sequences of beta scale maps, for rendering on the target image display,
- wherein the beta scale map corresponds to an image comprising beta scaling data for a corresponding base layer image of a base reference color grade optimized for image rendering operations with the base reference image display,
- wherein the subset of the one or more sequences of the beta scale maps are target-display specific sequences of the beta scale maps for the target image display.
A method comprising:
- decoding, from a video signal, a sequence of base layer images, the sequence of base layer images having been optimized for image rendering on a base reference image display;
- decoding, from the video signal, a subset of one or more sequences of beta scale maps, the subset of one or more sequences of beta scale maps having been determined from a set of one or more sequences of beta scale maps corresponding to one or more non-base reference image displays based on display capabilities of a target image display;
- causing a sequence of display images from the sequence of base layer images and the subset of one or more sequences of beta scale maps, to be rendered on the target image display,
- wherein the beta scale map corresponds to an image comprising beta scaling data for a corresponding base layer image of a base reference color grade optimized for image rendering operations with the base reference image display,
- wherein the subset of the one or more sequences of the beta scale maps are target-display specific sequences of the beta scale maps for the target image display.
Dependencies are inferred from the claim text.