'A method for digitizing a time-discrete video signal using intraframe transform'

摘要

method and device for digitizing an videosignals under application of a bildumwandlung, with one group of n videosignalabtastwerten in a group of n coefficients y (m) with m = 1, 2, 3,. .. n is converted into each of the hall can be coded.in order to avoid a coefficient y (m), the average small to very small, not or insufficiently exactly is coded when the transient is large, and the koeffizientengruppe with a number of solid klassifizierungsgruppen a (j)), each consisting of n elements of a (j, m). tehen, with a (j + 1, m) a (j, m), and j = 1, 2, 3,. .. m.the value of j o j is determined such that y (m) a (j o, m) for all m. with any klassifizierungsgruppe a (j) is a bitzuordnungsgruppe b (j) with elements of b (j, m) associated with it, and each of the n coefficients y (m) is now a codeword z (m) into a number of bits, the aufwei st, the b (j), (m) is labelled and, for example, the value of b (j o, m).