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ALARM OF QUANTISATION PARAMETER CHANGES FOR CODED UNITS UNDER HIGHLY EFFICIENT VIDEO CODING (HEVC)
申请公布号：RU2546590(C2)
申请号：RU20130139174
申请日期：2012.01.12
申请公布日期：2015.04.10
发明人：KARCHEVICH MARTA;DZHOSHI RADZHAN L.
分类号：H04N19/50
主分类号：H04N19/50
摘要：FIELD: information technologies.SUBSTANCE: in this method they accept a largest coding unit (LCU) of video data divided into a set of coded units (CU) with a small size of the unit in accordance with the scheme of quadrant tree division; they determine whether the CU includes non-zero coefficients of transformation by means of decoding of coded data for reproduction of indication of the fact whether the CU includes non-zero coefficients of transformation; syntax elements are decoded for the CU, to indicate the change in the quantisation parameter for the CU relative to the predicted parameter of quantisation, if CU includes non-zero coefficients of transformation, besides, one or more elements of syntax are decoded from the position within limits of coded video data.EFFECT: increased quality of data compression.30 cl, 8 dwg
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