Method for prolonging video storage time of video monitoring system

Abstract

The invention provides a method for prolonging a video storage time of a video monitoring system. The method comprises the following steps: (1) setting a threshold of an occupancy rate of a storage system, and starting processing when the occupancy rate of the storage system exceeds the set threshold; (2) selecting a to-be-processed video file; (3) performing intelligent video processing on the selected video file, and verifying whether the current scene is a long-time static scene or a quick moving scene, wherein all video frames are discarded in the long-time static scene until a moving scene element comes; all video frames are stored in the quick moving scene to ensure the video quality; video key frames are stored in other scenes; and (4) decoding and re-encoding the intelligently analyzed data, and storing the encoded video file in the storage system. According to the method provided by the invention, balance is achieved between the video recording quality and the prolonging of the storage time, the resolution of the video is not reduced, the key information is not lost in the moving scene, and the video compression ratio can be greatly improved in the static scene.

Description

technical field [0001] The invention belongs to the field of video processing methods, and relates to a method for extending the recording storage time of a video monitoring system. Background technique [0002] In the field of video surveillance, due to the limited capacity of hardware storage devices or cost control, when the storage system is full of videos, you can only choose to delete the video files with the longest date or discard the video files with the latest date. Users generally have strong expectations for video surveillance equipment that can be stored for a longer period of time, and at the same time do not want to pay high system expansion costs for this. The value of the video stored in the storage system to the user is different, and the video with a longer date is relatively less valuable to the user. [0003] Patent CN105872552A: An intelligent processing method for extending the video storage time of the video surveillance system, through the effective...

AI Technical Summary

Problems solved by technology

However, the solution relies on video key frame extraction, which has certain disadvantages. First, if the video is in a fast-moving scene, some video details will be lost, reducing the value of the video.

Second, for long-time still picture scenes, many repeated key frames are saved, which reduces the utilization rate of the storage system

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