Video stitching method and system based on multi-camera content analysis

A technology of content analysis and video splicing, applied in closed-circuit television systems, components of TV systems, TVs, etc., can solve problems such as the lack of calculation of overlapped areas to splice images, the demanding requirements of multiple video splicing, and the complicated calculation process, etc., to achieve Save storage space, reduce information storage costs, and ensure integrity

Inactive Publication Date: 2020-06-30
JINAN INSPUR HIGH TECH TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing commonly used image content analysis method is through the splicing and synthesis of multi-camera imaging. The main process is to extract the feature points of multiple videos, and match and splicing the feature points. However, the technology generally uses pixel-level comparison of each image frame based on different cameras. Algorithm, relatively speaking, consumes computing power, and the calculation process is relatively complicated, so the existing technology lacks quick calculation of overlapping areas and quick splicing of images
[0005] At present, the technical means of multi-scene camera content analysis are not perfect, and the scene is relatively complex, which means that the requirements for multi-video stitching are very strict, so a fast and effective video stitching method is needed to solve the above problems

Method used

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  • Video stitching method and system based on multi-camera content analysis

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Embodiment 1

[0035] A video splicing method based on multi-camera content analysis, the specific steps of the method are as follows:

[0036] S1 extracts and analyzes the single-frame feature points in the image content captured by multiple cameras at the same time;

[0037] S2 analyzes single-frame feature points of multiple images to obtain key frame feature point information;

[0038] S3 fuses and cuts the feature point information of the key frame of the image to obtain a spare image;

[0039] S4 splicing the backup images formed at different times to obtain the final image and video information.

[0040] When the camera work is in progress, the first image and the second image captured by the first camera and the second camera at the same time are processed as a set of data according to the S1 step method, and the single frame feature point information is extracted, and the single frame of multiple images is analyzed according to S2 The key frame feature point information is obtaine...

Embodiment 2

[0049] The present invention also provides a video splicing system based on multi-camera content analysis corresponding to the method, the system includes a feature point module, an image homography matrix calculation module, an image fusion cutting module and a foreground matching module;

[0050] Feature point module: extract and analyze single-frame feature points in the image content captured by multiple cameras at the same time;

[0051] Image homography matrix calculation module: analyze the single-frame feature points of multiple images to obtain key frame feature point information;

[0052] Image fusion and cutting module: fuse and cut the feature point information of the key frame of the image to obtain a spare image;

[0053] Foreground matching module: splicing the backup images formed at different times to obtain the final image and video information;

[0054]When the camera work is in progress, the first image and the second image captured by the first camera and...

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Abstract

The invention discloses a video splicing method and system based on multi-camera content analysis, and belongs to the field of industrial protection, social monitoring and community security and protection. The system comprises a feature point module, an image homography matrix calculation module, an image fusion cutting module and a foreground matching module. Video processing is carried out by using the method and the system; the final image video information can be obtained after the overlapping region in the multi-angle video is quickly and efficiently removed; the work of performing content analysis processing on multi-scene and multi-camera image videos by applying a single-frame feature point matching technology is realized; the final image video information obtained through processing saves more storage space, reduces the information storage cost, reduces the workload of image video processing, and improves the working efficiency of image video processing while guaranteeing thevideo content integrity and video quality.

Description

technical field [0001] The invention discloses a video splicing method based on multi-camera content analysis and a system thereof, and relates to the technical fields of industrial protection, social monitoring, and community security. Background technique [0002] In recent years, with the rapid development of science and technology, a large number of surveillance cameras have been deployed in many industries such as industry, public security, security, sports fields, etc., such as infrared cameras, monocular cameras, monocular wide-angle cameras, binocular stereo cameras, and binocular image stitching cameras. , multi-lens image stitching panoramic cameras, etc. These cameras generate a large number of videos every day, but most of the videos are repetitive and invalid, which makes the workload of image and video processing very large, which means that relevant departments are calling key A large amount of invalid video information needs to be processed during the monitor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N5/265G06K9/46G06K9/62
CPCH04N7/181H04N5/265G06V10/40G06F18/22
Inventor 孙凯李锐金长新
Owner JINAN INSPUR HIGH TECH TECH DEV CO LTD
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