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:
Nov. 03, 2015
Filed:
Apr. 28, 2011
Applicants:
Masaki Kitahara, Yokosuka, JP;
Atsushi Shimizu, Yokosuka, JP;
Naoki Ono, Yokosuka, JP;
Inventors:
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/26 (2006.01); H04N 19/85 (2014.01); H04N 19/172 (2014.01); H04N 19/15 (2014.01); H04N 19/61 (2014.01); H04N 19/114 (2014.01); H04N 19/117 (2014.01); H04N 19/124 (2014.01); H04N 19/132 (2014.01); H04N 19/152 (2014.01); H04N 19/177 (2014.01); H04N 19/194 (2014.01); H04N 19/80 (2014.01);
U.S. Cl.
CPC ...
H04N 19/85 (2014.11); H04N 19/114 (2014.11); H04N 19/117 (2014.11); H04N 19/124 (2014.11); H04N 19/132 (2014.11); H04N 19/15 (2014.11); H04N 19/152 (2014.11); H04N 19/172 (2014.11); H04N 19/177 (2014.11); H04N 19/194 (2014.11); H04N 19/61 (2014.11); H04N 19/80 (2014.11);
Abstract
In a video encoding control method of the present invention, each picture is encoded in units of encoding-order picture groups such as GOPs, and when CPB underflow has occurred, an encoding parameter such as a quantization parameter and filter strength of a pre-filter is changed in such a manner that a generated bit rate is reduced, and an encoding-order picture group that is being encoded is re-encoded from its first picture using the changed encoding parameter.