公开(公告)号：US20240155207A1

公开(公告)日：2024-05-09

申请号：US18511251

申请日：2023-11-16

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Doh-Suk KIM ,  Sean Thomas MCCARTHY ,  Scott DALY ,  Jeffrey RIEDMILLER ,  Ludovic Christophe MALFAIT ,  Raphael Marc ULLMANN ,  Jason Michael CLOUD

IPC: H04N21/647 ,  H04L65/80 ,  H04N21/2668 ,  H04N21/45

CPC classification number: H04N21/64769 ,  H04L65/80 ,  H04N21/2668 ,  H04N21/4532

Abstract: A method for delivering media to a playback device including outputting first test media to be viewed by a first user. The method further includes receiving a first user input related to a first perception of the first test media by the first user and indicating a first personalized quality of experience of the first user with respect to the first test media. The method further includes generating a first personalized sensitivity profile including one or more viewing characteristics of the first user based on the first user input, and determining, based at least in part on the first personalized sensitivity profile, a first media parameter. The first media parameter is determined in order to increase an efficiency of media delivery to the first playback device over a network while preserving the first personalized quality of experience of the first user.

公开(公告)号：US20240080489A1

公开(公告)日：2024-03-07

申请号：US18506828

申请日：2023-11-10

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Fangjun PU ,  Taoran LU ,  Peng YIN ,  Sean Thomas MCCARTHY

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/186 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/186 ,  H04N19/46

Abstract: A quantization parameter signalling mechanism for both SDR and HDR content in video coding is described using two approaches. The first approach is to send the user-defined QpC table directly in high level syntax. This leads to more flexible and efficient QP control for future codec development and video content coding. The second approach is to signal luma and chroma QPs independently. This approach eliminates the need for QpC tables and removes the dependency of chroma quantization parameter on luma QP.