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:
Jan. 23, 2024
Filed:
Jun. 10, 2022
Applicant:
Tencent America Llc, Palo Alto, CA (US);
Inventors:
Xin Zhao, Santa Clara, CA (US);
Madhu Peringassery Krishnan, Mountain View, CA (US);
Shan Liu, San Jose, CA (US);
Assignee:
TENCENT AMERICA LLC, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/00 (2014.01); H04N 19/44 (2014.01); H04N 19/124 (2014.01); G06F 1/03 (2006.01); H04N 19/184 (2014.01); H04N 19/70 (2014.01);
U.S. Cl.
CPC ...
H04N 19/44 (2014.11); G06F 1/03 (2013.01); H04N 19/124 (2014.11); H04N 19/184 (2014.11); H04N 19/70 (2014.11);
Abstract
A method, computer program, and computer system is encoding or decoding video data. Video data may include a syntax element indicating a quantization index, wherein a range of the quantization index is extended by an offset value. The syntax element may be parsed to determine the quantization index, a quantization step size may be obtained from a lookup table based on the quantization index and the offset value; and the video data may be encoded or decoded based on the quantization step size.