Video signal processing and storing method and video signal processing and storing system

Abstract

The invention discloses a video signal processing and storage method and system. After decoding, shrinking and splicing multiple channels of video to be watched, they are re-encoded into a compressed video in H.264 format. The client only needs to receive and decode this channel of video. Restoration can watch multiple video images before processing at the same time, reducing the transmission bandwidth and decoding operation requirements to the resource requirement level of one video; at the same time, it can effectively improve the information storage utilization rate of effective video surveillance, according to the general video surveillance storage According to statistics, the effective video stream storage time can be extended by 70-80% on average, and effective storage information can be actively extracted, which saves the storage investment in the video surveillance system, provides valuable video surveillance information for post-event investigation and evidence collection, and provides timely information for video surveillance managers. Scientific decision-making provides strong technical support and is promoted and applied in the monitoring system.

Description

technical field [0001] The patent of the present invention relates to network video surveillance technology, specifically a video signal processing and storage method and system. Background technique [0002] In the era when high-definition video is popular, the video surveillance system business is under increasing pressure to simultaneously transmit and display multiple video images. Usually, the network bandwidth of 4M / bps to 8M / bps is required to transmit one channel of 1080P video data, and the network bandwidth of 128M / bps needs to be reserved for simultaneous transmission of 16 channels of 1080P video. When observing multiple video images at the same time, under the current mainstream computer hardware solution configuration, when using CPU operation to decode 1080P resolution video encoded in H.264 format, each machine can decode about 7 to 8 channels at the same time. If multiple channels of high-definition video images are transmitted at the same time, the demand ...

AI Technical Summary

Problems solved by technology

[0003] However, practice has proved that in most cases, static video traffic often does not provide valuable information or provides little valuable information, and the video recording information that is really valuable to customers is often inconsistent with the fully stored video recording information. Even in some scenarios, valuable videos account for less than 20%

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