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    • 26. 发明申请
    • ENCODERS, DECODERS AND METHODS EMPLOYING QUANTIZATION
    • US20190182484A1
    • 2019-06-13
    • US16224514
    • 2017-07-17
    • GURULOGIC MICROSYSTEMS OY
    • Ossi KALEVO
    • H04N19/124H04N19/136H04N19/176
    • A method of encoding input data (D1) to generate corresponding encoded data (E2) is provided. The input data (D1) includes a plurality of data portions. The method includes: (a) setting one or more values of a quality parameter for the plurality of data portions in a portion-specific manner, such that a given data portion has a corresponding given value of the quality parameter; (b) analysing the plurality of data portions and selecting at least one encoding method and at least two different quantization strengths to be employed for encoding the plurality of data portions, wherein, for a given data portion, a corresponding given encoding method and a corresponding given quantization strength are selected to be employed for encoding the given data portion, the corresponding given encoding method and the corresponding given quantization strength being selected based upon a given value of the quality parameter set for the given data portion at (a); (c) encoding the plurality of data portions to generate corresponding encoded data portions, wherein at least two data portions from amongst the plurality of data portions are encoded by employing a same encoding method, whilst employing different quantization strengths, for a same value of the quality parameter that has been set for the at least two data portions at (a); (d) aggregating the encoded data portions to generate the encoded data (E2); and (e) assembling information indicative of the at least two quantization strengths and information indicative of the one or more values of the quality parameter into the encoded data (E2).
    • 30. 发明申请
    • ENCODER, DECODER AND METHOD OF OPERATION USING INTERPOLATION
    • 编码器,解码器和使用插值的操作方法
    • US20160142712A1
    • 2016-05-19
    • US14905000
    • 2014-07-17
    • GURULOGIC MICROSYSTEMS OY
    • Tuomas KARKKAINENOssi KALEVO
    • H04N19/132
    • H04N19/132H03M7/40H03M7/46
    • A method of encoding data in an encoder to generate corresponding encoded data includes receiving the data to be encoded and analyzing sub-portions of the data to be encoded to determine one or more encoding algorithms which are to be applied to encode the sub-portions, wherein the one or more encoding algorithms include at least one interpolation algorithm; computing one or more interpolation parameters for the at least one interpolation algorithm which are representative of data values of the sub-portion of the data to be encoded by the at least one interpolation algorithm; encoding a remainder of the sub-portions of the data to be encoded using the one or more encoding algorithms; and combining data generated in the computing and encoding to generate the encoded data. A method is also disclosed for decoding encoded data in a decoder. The methods may be employed in an encoder, decoder, and codec.
    • 一种对编码器中的数据进行编码以产生对应的编码数据的方法包括:接收要编码的数据,并分析要编码的数据的子部分,以确定要应用于编码子部分的一个或多个编码算法, 其中所述一个或多个编码算法包括至少一个内插算法; 计算所述至少一个内插算法的一个或多个内插参数,所述内插参数代表要由所述至少一个内插算法编码的数据的子部分的数据值; 使用所述一个或多个编码算法对待编码的数据的子部分的其余部分进行编码; 以及组合在计算和编码中生成的数据以生成编码数据。 还公开了一种用于对解码器中的编码数据进行解码的方法。 这些方法可以用在编码器,解码器和编解码器中。