公开(公告)号：US20240357112A1

公开(公告)日：2024-10-24

申请号：US18685319

申请日：2022-08-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Arunkumar MOHANANCHETTIAR ,  Jay Nitin SHINGALA ,  Pankaj SHARMA ,  Nijil KOLLERI ,  Peng YIN ,  Arjun ARORA ,  Fangjun PU ,  Taoran LU ,  Sean Thomas MCCARTHY ,  Walter J. HUSAK

IPC: H04N19/124 ,  G06V10/771 ,  G06V10/80 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70

CPC classification number: H04N19/124 ,  G06V10/771 ,  G06V10/803 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70

Abstract: Methods, systems, and bitstream syntax are described for the fusion of latent features in multi-level, end-to-end, neural networks used in image and video compression. The fused architecture may be static or dynamic based on image characteristics (e.g., natural images versus screen content images) or other coding parameters, such as bitrate constrains or rate-distortion optimization. A variety of multi-level fusion architectures are discussed.

公开(公告)号：US20240163485A1

公开(公告)日：2024-05-16

申请号：US18548137

申请日：2022-03-24

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Arunkumar MOHANANCHETTIAR ,  Jay Nitin SHINGALA ,  Peng YIN ,  Sean Thomas MCCARTHY

IPC: H04N19/70 ,  H04N19/136 ,  H04N19/42 ,  H04N19/91

CPC classification number: H04N19/70 ,  H04N19/136 ,  H04N19/42 ,  H04N19/91

Abstract: Methods, systems, and bitstream syntax are described for the entropy modeling of latent features in image and video coding using a combination of probability density functions. Using high-level syntax elements, an encoder may signal to compliant decoders the multi-distribution entropy model using: the number of one or more PDFs being used, an identifier of each PDF being used among a list of available PDFs, the number of PDF parameters in each PDF, and syntax elements indicating which PDF parameters across two or more PDFs being used are being shared.