公开(公告)号：US10785485B1

公开(公告)日：2020-09-22

申请号：US15143069

申请日：2016-04-29

Applicant: Matrox Graphics Inc.

Inventor： Mathieu Girard ,  Nicolas Jean ,  Alain Champenois ,  Jean-Jacques Ostiguy ,  Sergiu Bogdan Nicolescu

IPC: H04N19/146 ,  H04N19/196 ,  H04N19/177 ,  H04N19/124

Abstract: A method and apparatus for enabling compression of a stream of pictures according to a target bit rate are described. A first configuration parameter for a first portion is determined based at least in part on a first relative weight of the first portion with respect to a first set of N portions, where the first set of N portions includes the first portion and N-1 portions which succeed the first portion. A second configuration parameter for a second portion of a second picture is determined based at least in part on a second relative weight of the second portion with respect to a second set of M portions of pictures, where the second set of M portions includes a subset of the N-1 portions from the first set and zero or more additional portions of pictures from the stream of pictures.

公开(公告)号：US11805261B1

公开(公告)日：2023-10-31

申请号：US17025695

申请日：2020-09-18

Applicant: Matrox Graphics Inc.

Inventor： Mathieu Girard ,  Nicolas Jean ,  Alain Champenois ,  Jean-Jacques Ostiguy ,  Sergiu Bogdan Nicolescu

IPC: H04N19/146 ,  H04N19/124 ,  H04N19/177 ,  H04N19/196

CPC classification number: H04N19/146 ,  H04N19/124 ,  H04N19/177 ,  H04N19/196

Abstract: A method and apparatus for enabling compression of a stream of pictures according to a target bit rate are described. A first configuration parameter for a first portion is determined based at least in part on a first relative weight of the first portion with respect to a first set of N portions, where the first set of N portions includes the first portion and N-1 portions which succeed the first portion. A second configuration parameter for a second portion of a second picture is determined based at least in part on a second relative weight of the second portion with respect to a second set of M portions of pictures, where the second set of M portions includes a subset of the N-1 portions from the first set and zero or more additional portions of pictures from the stream of pictures.