Frame-rate control method and device

Abstract

The embodiment of the invention discloses a frame-rate control method and device, and relates to the image processing field. The objective of the invention is to provide a scheme capable of controlling the frame rate of a multi-video data collection channel and solve the phenomenons of bus jam, data loss and system confusion caused by video data collection through multiple channels. In the invention, according to the common multiple of the original frame rate of each channel, the total frame rate employed by the upper sampling processing of the original frame drawing index list of each channel is determined; performing the upper sampling of the original frame drawing index list, and determining the processed upper sampling frame drawing index list; performing displacement of the upper sampling frame drawing index list according to the overlapping degree between the upper sampling points occupied by the drawing sampling frames represented by the upper sampling frame drawing index list of each channel; and performing lower sampling process of the upper sampling frame drawing index list with the lowest overlapping degree, determining the processed real frame drawing index list, and performing the frame rate control. Therefore, the problems mentioned above are solved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a frame rate control method and device. Background technique [0002] With the popularization and development of video surveillance technology and multimedia technology, users have a wider demand for video surveillance. [0003] Generally speaking, the encoding capability of the encoder in the video surveillance chip is often limited, that is, the number of frames that can be encoded per second is limited. In order to expand the scope of monitoring and increase the area that can be monitored, multi-channel non- Real-time video capture solution. For example, the encoder can only encode 100 frames per second. If a full real-time monitoring solution is used, it can only cover 4 regional scenes (that is, each scene uses a frame rate of 25 frames per second to collect data); When collecting data at a frame rate of frames per second, it can cover 10 regional scenes, greatly in...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a frame rate control method and device, which are used to provide a solution for controlling the frame rate of multiple video data acquisition channels, and solve bus congestion, data loss and system congestion caused by simultaneous acquisition of video data by multiple channels. chaotic phenomenon

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