Low-delay streaming media transmission method based on viewpoint prediction

Abstract

The invention discloses a low-delay streaming media transmission method based on viewpoint prediction, and belongs to the field of channel coding. The method comprises the following specific steps: firstly, respectively partitioning each frame of image in a certain section of streaming media video; performing probability assignment and normalization on each region block by adopting a viewpoint prediction algorithm to obtain a prediction probability matrix P; thirdly, for each element in the matrix P, performing reciprocal operation and rounding down to obtain a degree distribution matrix D; unifying degree values greater than a critical value in the degree distribution matrix D; then, using each degree value as a fountain code coding parameter, carrying out independent fountain code coding on each area block, and packaging coding content and the corresponding area block position into a data transmission unit; and finally, enabling each data transmission unit to carry out wireless transmission and then carry out decoding at a receiving end so as to realize transmission of streaming media contents. According to the method, independent fountain code coding is carried out on different streaming media video region blocks, so that the transmission delay is reduced, and the bandwidth load of a wireless transmission channel is reduced.

Description

technical field [0001] The invention belongs to the field of computer channel coding, in particular to a low-latency stream media transmission method based on viewpoint prediction. Background technique [0002] In recent years, with the rapid development of mobile communication technology, corresponding mobile communication services have also been greatly increased; among all communication services, streaming media services are a very important component. [0003] Streaming media services are characterized by large data volumes and high real-time requirements. Compared with ordinary communication services, streaming media needs to transmit content such as pictures, text, and video through mobile communication channels, which inevitably occupies relatively large bandwidth resources. In addition, streaming media services have high requirements on time delay, and a large time delay will affect the user's viewing experience; in view of the above characteristics of streaming med...

AI Technical Summary

Problems solved by technology

[0011] However, the above existing solutions do not use viewpoint prediction technology to classify the importance of streaming media data, and cannot guarantee the viewing experience of users at the receiving end; and cannot support a variety of streaming media services, including VR panoramic video and stereoscopic video, etc.

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