Patent ID: 8467460
Filing Date: 2013-06-18
Classification: H04N

Abstract:
1. A video processing method which uses no encoding data of a video image and can be voluntarily controlled using a standard for estimating the subjective or objective image quality, the method comprising the steps of: dividing a processing target image, which forms a video image, into a plurality of divided areas; determining a first bandwidth applied to the divided areas; computing a first filter coefficient array for implementing frequency characteristics corresponding to a band limitation using the first bandwidth; generating filtered divided image data of each divided area by subjecting image data of each divided area to a filtering process using the first filter coefficient array; deriving, for each divided area, a value of error information between the image data of each divided area and the filtered divided image data, and computing an allocation coefficient used for determining an optimum bandwidth, based on the derived value; determining, for each divided area, the optimum bandwidth corresponding to the allocation coefficient; computing, for each divided area, an optimum filter coefficient array for implementing the frequency characteristics corresponding to a band limitation using the determined optimum bandwidth; generating optimum filtered divided image data of each divided area by subjecting the image data of each divided area to a filtering process using the optimum filter coefficient array; synthesizing the optimum filtered divided image data of each divided area without iterating the foregoing steps; and outputting the synthesized data as optimum filtered image data.