Method and system for realizing ultra-low latency encoding, decoding and transmission of high-definition video

Abstract

The invention provides a method and a system for realizing ultra-low latency encoding, decoding and transmission of a high-definition video. The method comprises the steps that: an encoder receives the high-definition video, segments each frame of images constituting the high-definition video into a plurality of cut frames, and completes caching, compressed encoding and uploading in sequence by regarding each of the cut frames as a unit one by one; an Ethernet transmits compressed encoded data of the cut frames; and a decoder receives the compressed encoded data of the cut frames, completes caching and independent decoding in sequence by regarding each of the cut frames as a unit, and splices the images after independent decoding to complete the restoration of each frame of the images. Themethod and the system solve the problem that high real-time video transmission application cannot be satisfied because the existing encoding and decoding system cannot cut flexibly and is difficult to adjust and optimize, realize the effect that the total time delay from encoding, transmission to decoding is less than 50 ms, and can meet the low latency requirements of the high real-time application.

Description

technical field [0001] The invention relates to the technical field of FPGA image coding and decoding, in particular to a coding and decoding system that can be used for ultra-low delay transmission of real-time images. Background technique [0002] Applications such as real-time remote control of unmanned aerial vehicles, CCTV (closed-circuit television) monitoring systems, and real-time game broadcasts all require near-real-time video image transmission technology support. For example, the control of FPV (first-person perspective remote control aircraft) is based on the streaming media image feedback sent back by the flying device. To control a flying device, the latency between when the sensor sends video to the compression engine and when the decoded image is displayed (known as "glass-to-glass") is typically less than 60 milliseconds. [0003] Video encoding refers to the conversion of a video format file into another video format file through a specific compression te...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of ultra-low delay that is difficult to achieve in the existing high-definition video codec system, the present invention provides a method and system for realizing ultra-low-delay codec and transmission of high-definition video, which can meet the needs of real-time remote control of unmanned aerial vehicles, CCTV (closed circuit television) ) monitoring system, real-time game broadcast and other fields of image transmission requirements

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