Picture splitting device

Abstract

The invention relates to a picture partitioning device which comprises a picture zooming module, a picture shearing module, a picture synchronous buffer module, an adding border module and a picture output module, wherein the picture zooming module is used for carrying out the zooming operation of any size of input data flow to obtain standard rectangular data flow; the picture shearing module isused for carrying out the shearing operation of data of each channel according to the user-defined priority relation and the corresponding coordinate positions and the existing form of the final target images; the picture synchronous buffer module is used for synchronizing the data of each channel from respective clock domains thereof to the clock domains of the final target images and storing thesheared data of each channel to the corresponding positions of a data buffer according to the relative coordinates; the adding border module is used for adding borders of the images of each channel on the corresponding positions of the final target images according to the user-defined priority relation, and the border of the channel data with high priority covers the border of the channel with low priority. The invention can realize the picture stitching of any format, and does not basically occupy the CPU source.

Description

technical field [0001] The invention relates to the field of video monitoring, in particular to a screen segmentation device in a multi-channel video data splicing format. Background technique [0002] At present, one of the known picture splitter implementations is that the splicing method is simple, and only can realize single-picture, four-picture, and nine-picture picture splicing formats, and the user has little choice, and can only switch between several picture splicing modes; One is to implement complex image splicing formats through software, which can realize various image divisions and various patrol operations of channels, but it takes up a lot of CPU resources. Contents of the invention [0003] In order to overcome the deficiency that the existing picture splitter needs to occupy a large amount of CPU resources to achieve arbitrary splicing of multi-channel video data, the present invention provides a picture splitting device that can realize splicing of pict...

AI Technical Summary

Problems solved by technology

[0002] At present, one of the known picture splitter implementations is that the splicing method is simple, and can only realize single-picture, four-picture, and nine-picture picture splicing formats, and the user has very little choice, and can only switch between several picture splicing modes; One is to use software to realize complex picture splicing formats, which can realize various picture divisions and various patrol operations of channels, but it takes up a lot of CPU resources

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