US 12,335,533 B2
Multi-distribution entropy modeling of latent features in image and video coding using neural networks
Arunkumar Mohananchettiar, Bengaluru (IN); Jay Nitin Shingala, Bangalore (IN); Peng Yin, Ithaca, NY (US); and Sean Thomas McCarthy, San Francisco, CA (US)
Assigned to Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
Appl. No. 18/548,137
Filed by Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
PCT Filed Mar. 24, 2022, PCT No. PCT/US2022/021730
§ 371(c)(1), (2) Date Aug. 28, 2023,
PCT Pub. No. WO2022/204392, PCT Pub. Date Sep. 29, 2022.
Claims priority of provisional application 63/211,793, filed on Jun. 17, 2021.
Claims priority of application No. 202141013582 (IN), filed on Mar. 26, 2021; and application No. 21180014 (EP), filed on Jun. 17, 2021.
Prior Publication US 2024/0163485 A1, May 16, 2024
Int. Cl. H04N 19/70 (2014.01); H04N 19/136 (2014.01); H04N 19/42 (2014.01); H04N 19/91 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/136 (2014.11); H04N 19/42 (2014.11); H04N 19/91 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method to decode with a processor a coded image or a coded video sequence with a neural network, the method comprising:
receiving a coded image or a coded video sequence comprising coded pictures and syntax parameters for an entropy model for latent features of the coded image or coded video sequence, wherein the entropy model comprises one or more probability density functions (PDFs) selected from a list of available PDFs that includes different distribution types, wherein the list of available PDFs comprise a Gaussian PDF, a Laplace PDF, and a uniform PDF;
parsing the syntax parameters for the entropy model for the latent features to generate model parameters for the entropy model, wherein the syntax parameters comprise: the number of one or more PDFs being used, an identifier of each PDF being used among the list of available PDFs; and
decoding, using the neural network, the coded image or the coded video sequence using the generated model parameters for the entropy model.