Video transmission method for effectively controlling unequal power consumption

Abstract

The invention discloses a video transmission method for effectively controlling unequal power consumption. The method comprises the following steps of: (1), video coding: coding a coding end information source through a video coder, and acquiring different priority code streams by starting data qualification of robust; (2), Turbo coding: performing joint source / channel coding by adopting a Turbo code, and coding the different priority code streams by using the Turbo code with the same code rate; (3), modulating: after the code streams are modulated with binary phase-shift keying (BPSK), sending the code streams by using a wireless channel; (4), demodulating: demodulating the code streams which are received by a decoding end from the channel and interfered by the noise by using the BPSK, and performing iterative Turbo code decoding on the demodulated code streams; (5), iterative Turbo code decoding: performing unequal decoding power allocation on the different priority code streams by using an optimized decoding power consumption method; and (6): video decoding: sending the code streams which are decoded by using the channel to a H.264 decoder to performing source decoding. By using the method, not only the balance of the video quality and the decoding power consumption can be obtained, but also the better quality of the video transmission can be obtained under the condition of finite power consumption.

Description

technical field [0001] The invention relates to the technical field of multimedia video communication, in particular to a video transmission method for effective control of unequal power consumption. Background technique [0002] As the application of video in the field of portable services becomes more and more popular, the requirements for low-power video transmission systems in portable applications are also getting higher and higher. Therefore, effective power consumption control becomes a key technology of the third generation mobile multimedia communication system. To design a communication system with effective control of power consumption, we must first understand how the power consumption of the multimedia communication system is consumed. Generally speaking, the power consumption of a video transmission system includes computing power consumption, transmission power consumption, and playback power consumption. A large part of the power consumption is computing po...

AI Technical Summary

Problems solved by technology

However, the existing power consumption optimization transmission scheme does not consider the power consumption of the decoding end and the optimization level of the source data and the characteristics of the channel code, which is not suitable for the universal application of video transmission with effective power consumption Small mobile multimedia services (such as video phones and handheld devices)

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