Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for video coding
A method of video decoding can include receiving a bit stream including coded bits of bins of syntax elements. The syntax elements are of various types that correspond to transform coefficients of a transform block in a coded picture. Context modeling is performed to determine a context model for each bin of the syntax elements. In a given frequency region of the transform block, for one type of the syntax elements, a group of the transform coefficients having different template magnitudes within a predetermined range share a same context model, or one of the transform coefficients uses the same context model for possible different template magnitudes of the one of the transform coefficients. The possible different template magnitudes are within the predetermined range. The coded bits are decoded based on the context models determined for each bin of the syntax elements to determine the bins of the syntax elements.
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Xin Xiang Shan
Zhao Li Liu