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  5. Method of controlling the bit rate for compression of predicted frames in a video sequence

Method of controlling the bit rate for compression of predicted frames in a video sequence

V.V. Barannik, D.E. Dvuhglavov, N.A. Kharchenko
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The method of management bit rate is offered at the compression of videoinformation taking into account achievement of maximal quality of image. In the process of finding of optimum parameters of compression a decision to utillize the method of dichotomy is accepted. He allows to find optimum values with the set exactness, not coming running here to the exhaustive search of variants. It results in diminishing of time of treatment of personnels of videogroup, that especially topically in the case of transmission of mediacontent real-time. Simplicity of method also is one of necessary requirements to the algorithms of management, at the use them in devices with the limited calculable capabilities. As a basic parameter of compression the factor of quality which the matrix of quantum is formed by was chosen. Exactly on this stage the most loss of information is made. Choosing also the method of treatment of blocks in a shot, there is possibility to reduce bit speed to the necessary limit for a transmission on ductings of connection.
Keywords: predicted frames, the bit rate, the luminance component, quantization, the quality factor, monitoring the bit rate