Granted patent
Methods for creating and distributing art-directable continuous dynamic range video
- Number
- 11140440
- Published
- 2021-10-05
- Filed
- 2019-05-02
- Assignee
- Disney Enterprises, Inc.
- Inventors
- Smolic; Aljoscha, Chapiro; Alexandre, Croci; Simone, Aydin; Tunc Ozan, Stefanoski; Nikolce, Gross; Markus
- CPC
- H04N19/00; H04N21/4402; G11B27/031; G11B27/34
- Verdict
- Set aside HDR video production/distribution tool, business
- Source
- Google Patents · FreePatentsOnline
Abstract
Novel systems and methods are described for creating, compressing, and distributing video or image content graded for a plurality of displays with different dynamic ranges. In implementations, the created content is “continuous dynamic range” (CDR) content—a novel representation of pixel-luminance as a function of display dynamic range.
Background
TECHNICAL FIELD (1) The present disclosure relates generally to high dynamic range (HDR) video techniques, and more particularly, some embodiments relate to methods for creating and distributing continuous dynamic range video.
Claims
1. A method of compressing and encoding a continuous dynamic range video, the method comprising: receiving: a minimum dynamic range graded image corresponding to a video frame, a maximum dynamic range graded image corresponding to the video frame, and metadata including a separate continuous dynamic range function for each pixel of the video frame; representing each of the continuous dynamic range functions using a corresponding vector of coefficients of a truncated polynomial series approximating the continuous dynamic range function; and representing the vectors of coefficients in an image format. ||
5. A method of decoding a continuous dynamic range image for display on a display having an associated dynamic range, the method comprising: receiving an encoded continuous dynamic range image comprising: a minimum dynamic range graded version of an image, a maximum dynamic range graded version of the image, and continuous dynamic range metadata corresponding to the image; decoding the continuous dynamic image using a codec to generate a decoded continuous dynamic range image; and creating a particular dynamic range representation of the image based on the decoded continuous dynamic range image and the dynamic range associated with the display. ||
11. A system, comprising: a display having an associated dynamic range; one or more processors; and one or more non-transitory computer-readable media operatively coupled to at least one of the one or more processors and having instructions stored thereon that, when executed, cause the at least one of the one or more processors to: receive an encoded continuous dynamic range image; decode the encoded continuous dynamic range image; create a particular dynamic range representation of the image based on the dynamic range associated with the display; and display the particular dynamic range representation of the image on the display.