发明名称 Methods and devices for filtering and coding a digital signal
摘要 To filter a digital signal, in which, for each sample of the signal, a plurality of context functions take account of a predetermined number of other samples of the signal: the value of a context function from the plurality of context functions for each sample to be filtered is calculated; the signal is divided into a set of sub-signals corresponding respectively to the different values of the context functions; and, for each sub-signal: an optimal filter is determined according to a first criterion that depends on the values of the sub-signal; and the optimal filter is associated with the context function corresponding to the sub-signal. Application to the coding of a digital signal representing an image.
申请公布号 US8588539(B2) 申请公布日期 2013.11.19
申请号 US20090389587 申请日期 2009.02.20
申请人 HENRY FELIX;COROUGE ISABELLE;CANON KABUSHIKI KAISHA 发明人 HENRY FELIX;COROUGE ISABELLE
分类号 G06K9/36;G06K9/40;G06K9/46 主分类号 G06K9/36
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