发明名称 |
AUTOMATIC PARAMETER ESTIMATION FOR ADAPTIVE PIXEL-BASED FILTERING |
摘要 |
One particular automatic parameter estimation method and apparatus estimates low level filtering parameters from one or more user controlled high-level filtering parameters. The high level filtering parameters are strength and quality, where strength indicates how much noise reduction will be performed, and quality indicates a tolerance which controls the balance between filtering uniformity and loss of detail. The low level filtering parameters that can be estimated include the spatial neighborhood and/or temporal neighborhood size from which pixel candidates are selected, and thresholds used to verify the 'goodness' of the spatially or temporally predicted candidate pixels. More generally, a criterion for filtering digital image data is accessed (902), and a value is determined (904) for a parameter for use in filtering digital image data, the value being determined based on whether the value results in the criterion being satisfied for at least a portion of a digital image. |
申请公布号 |
WO2008042029(A2) |
申请公布日期 |
2008.04.10 |
申请号 |
WO2007US14890 |
申请日期 |
2007.06.25 |
申请人 |
THOMSON LICENSING;BHAGAVATHY, SITARAM;LLACH, JOAN |
发明人 |
BHAGAVATHY, SITARAM;LLACH, JOAN |
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