Bit speed control method in compression of predicted frames in video sequence

Abstract

The method of bit rate control in compressing videodata is proposed, taking into account achieving the maximum image quality. In the process of finding optimal compression parameters it was decided to use the dichotomy method. It allows you to find the optimal values with a given accuracy, without having to resort to a complete search of options. This leads to the reduction of video group frame processing time, which is especially important in case of media content transmission in real time mode. The simplicity of the method is also one of the necessary requirements for control algorithms, when used in devices with limited computing power. A quality factor was selected as the main compression parameter, with which the quantization matrix is formed. At this stage, the greatest loss of information occurs. By choosing the method of block processing in the frame, it is possible to reduce the bit rate to the necessary limit for transmission over the communication channels. Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).