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Patent Searching and Data


Title:
Sample adaptive offset scaling based on bit depth
Document Type and Number:
Japanese Patent JP6301449
Kind Code:
B2
Abstract:
This disclosure provides systems, methods and apparatus for sample adaptive offset (SAO) scaling. For example, the apparatus may include a processor configured to determine an offset value for an SAO filter applied to video data to improve reconstruction of signal amplitudes in the video data. The processor may be further configured to determine a first value indicative of a bit depth and a second value indicative of a scale factor for the video data, to provide a scaled offset value based on applying the scale factor to the offset value, and to scale at least one color component of the video data according to the scaled offset value. The processor may also be configured to identify an edge offset category for a scaled group of neighboring pixel values, and to adjust the SAO filter based on the identified edge offset category.

Inventors:
Kim, Wo-sik
Sol Rojars, Joel
Joshi, Rajan Luxman
Kirk Zewicks, Malta
Application Number:
JP2016506619A
Publication Date:
March 28, 2018
Filing Date:
April 03, 2014
Export Citation:
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Assignee:
QUALCOMM INCORPORATED
International Classes:
H04N19/117; H04N19/14; H04N19/176; H04N19/70; H04N19/82; H04N19/86
Foreign References:
WO2012176910A1
US20120177107
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro