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.

Date of Patent:
Apr. 24, 2018

Filed:

Aug. 07, 2016
Applicant:

Freescale Semiconductor, Inc., Austin, TX (US);

Inventors:

Hongzhang Yang, Shanghai, CN;

Zening Wang, Nanjing, CN;

Peng Zhou, Shanghai, CN;

Assignee:

NXP USA, INC., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/12 (2006.01); G06K 9/00 (2006.01); H04N 19/107 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01);
U.S. Cl.
CPC ...
H04N 19/107 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11);
Abstract

An encoding system for converting video data to a media stream based on a given intra-refresh rate includes an encoder for encoding the video data to frames based on the given intra-refresh rate, a decoder for reconstructing the encoded frames, and an evaluation unit for scoring macro blocks (MBs) of a current frame being decoded. A score of an intra-MB is defined as a predetermined value, and a score of an inter-MB is generated based on the scores of MBs of previous frames. A controller determines an actual refresh period based on a qualified frame identified based on the scores of the MBs of at least the current frame, and adjusts the given intra-refresh rate based on the actual refresh period.


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