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Method of transmission of additional data in combined use of vector quantisation and fractal conding of images allowing for classifications of domains and units from code book. RU patent 2327301.

$Method of transmission of additional data in combined use of vector quantisation and fractal conding of images allowing for classifications of domains and units from code book. RU patent 2327301.$

FIELD: electrical engineering.

SUBSTANCE: invention relates to communication, in particular, to reducing the message redundancy. The developed method allows transmitting additional data without increasing the volume of transmitted data with the transmission rate left intact. First, the initial image is separated into not overlapping range units to be classified. Here, note that every range unit is refereed to one of the three classes, and the said classification is applied to the domains and units from the code book as well. Additional data is entered into lower category of the domain or units indices, to the rest categories of indices of the domain of the initial image or units from the code book applied is the trial inversion procedure. Now, the domain indices and units from the code book are optimised to be transmitted, along with the data on indices of their orientation, over the communication channel. The receiving party isolates the additional data and restores the initial image.

EFFECT: transmission of additional data without increasing the common volume of transmitted data at the required transmission rate.

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IPC classes for russian patent Method of transmission of additional data in combined use of vector quantisation and fractal conding of images allowing for classifications of domains and units from code book. RU patent 2327301. (RU 2327301):

H04N7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band

G06T9 - Image coding, e.g. from bit-mapped to non bit-mapped (compression in general H03M; compression for image communication H04N)

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