| http://www.w3.org/ns/prov#value | - At the DCT and quantization block 110, each block of the input digital video signal is converted into a block of, e.g., DCT coefficients by using such a conventional transform technique as DCT, wherein, as well known in the art, non-zero or significant DCT coefficients mainly appear in a low frequency zone which includes a DC coefficient and zero or insignificant DCT coefficients are concentrated
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