Narrow bandwidth lower than 4 K/S video transmission method and system

Abstract

The invention discloses a narrow bandwidth lower than 4 K/S video transmission method and system. The narrow bandwidth lower than 4 K/S video transmission method comprises the steps that a video is captured; a USDC coding technology is adopted to perform high power compression on video streaming media files with low damage; the sending of video frames is adjusted according to the network environment; a video server receives and distributes video streaming; a video receiving end receives, decodes and plays the video. By the adoption of the technical scheme of the narrow bandwidth lower than 4 K/S video transmission method and system, the bandwidth occupied by transferring high-definition images is minimal, the image quality is clear and smooth, the image delay is small, the operating cost is reduced, and therefore, the bottleneck problem between the high definition high code streaming and lack of bandwidth is solved.

Description

technical field [0001] The invention relates to the field of video compression and transmission, in particular to a method and system for video transmission with a narrow bandwidth lower than 4K / S. Background technique [0002] CIF is a commonly used standardized image format, which means Common Intermediate Format. At present, several resolutions are mainly used in the monitoring industry, such as CIF (352-288), D1 (704×576), 720P (1280*720), 1080P (1920*1080), among which CIF video resolution is the mainstream resolution, absolutely Most products use CIF resolution. At present, the market accepts CIF resolution for the following four reasons: [0003] 1. The current digital monitoring requires that the video code rate should not be too high; [0004] 2. Video transmission bandwidth is also limited; [0005] 3. Using HALF D1 and D1 resolution can improve the definition and meet the high-quality requirements, but at the cost of high bit rate; [0006] 4. Using CIF resol...

AI Technical Summary

Problems solved by technology

[0003] 1. The current digital monitoring requires that the video code rate should not be too high;

[0004] 2. Video transmission bandwidth is also limited;

[0005] 3. Using HALF D1 and D1 resolution can improve the definition and meet the high-quality requirements, but at the cost of high bit rate;

[0006] 4. Using CIF resolution, the signal-to-noise ratio is above 32db, which is acceptable to general users, but it is not ideal video image quality

[0009] As the definition of front-end equipment is getting higher and higher, the corresponding acquisition stream is also getting bigger and bigger, and transmission becomes a bottleneck. Many monitoring systems are equipped with a scene of "thousands of troops crowding a single-plank bridge", and high-priced equipment is used inefficiently. Problems that have been plaguing the industry

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