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:
Oct. 21, 2025
Filed:
Mar. 31, 2022
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Sean Thomas Mccarthy, San Francisco, CA (US);
Peng Yin, Ithaca, NY (US);
Vijayakumar Gayathri Ramakrishna, Bengaluru, IN;
Kishore Chamarthi, Tirupathi, IN;
Kaustubh Shripad Patankar, Bengaluru, IN;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
Methods, systems, and bitstream syntax are described for metadata signaling and conversion for film grain encoding and synthesis. Given a bitstream with MPEG film-grain SEI messaging, for each picture, a processor: detects if the film grain model is suitable for film-grain synthesis using the AV1 autoregressive with additive blending noise model, and then: transcodes the MPEG film grain SEI parameters to corresponding AV1 film grain parameters, synthesizes the film grain, and adds it to the decoded video pictures according to the AV1 specification. An example process for translating AV1 parameters to MPEG film-grain SEI messaging is also provided.