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:
Jul. 16, 2019
Filed:
May. 31, 2017
Applicants:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Deutsche Telekom Ag, Bonn, DE;
Inventors:
Martin Pettersson, Vallentuna, SE;
Savvas Argyropoulos, Bonn, DE;
Assignees:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
DEUTSCHE TELEKOM AG, Bonn, DE;
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/85 (2014.01); H04N 19/89 (2014.01); H04N 21/44 (2011.01); H04N 17/00 (2006.01);
U.S. Cl.
CPC ...
H04N 19/85 (2014.11); H04N 17/004 (2013.01); H04N 19/89 (2014.11); H04N 21/44008 (2013.01);
Abstract
There is provided an apparatus for detecting a quality defect in a video sequence, the apparatus comprising: a receiver arranged to receive a video bitstream representing a video sequence; and a defect module arranged to determine a measure of quantization parameter for each picture of the video sequence, the defect module further arranged to identify a quality defect when an abrupt change in the measure of quantization parameter occurs.