Stmicroelectronics S.r.l.

Mattia De Bei

Daniele Bagni

Maria Luisa Sacchi

Gian Antonio Mian

An algorithm based on a pre-analysis implements an efficient constant bit-rate control with a reduced requirement on a buffer memory capacity. The pre-analysis is on at least one slice (GOS) of the current whole picture, and/or on a mix of information on the pre-analysis of a slice of the preceding picture and on the actual encoding data of the preceding whole picture. The pre-analysis may be carried out by precoding the GOS with a constant reference quantizer or by entropy computation. The local control of the bit-rate is implemented by an integrative-proportional controller.

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Sottomarina, Italy

Mattia De Bei