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Panoramic video rapid splicing method and system

A fast stitching and panoramic video technology, applied in image data processing, instruments, calculations, etc., can solve the problems of large amount of calculation, poor stitching effect, large resource and time consumption, etc.

Pending Publication Date: 2020-02-11
中国人民解放军63861部队
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional image stitching method generally extracts features such as ORB and Sift from the picture first, and then performs feature matching and fusion. For example, in the invention patent application with the publication number CN103516995A, a real-time panoramic video stitching method based on ORB features is disclosed. And device, its method adopts ORB feature extraction algorithm to carry out feature point extraction to each road image of the same time and calculates the ORB feature vector of each feature point; Adopt nearest neighbor matching method and RANSAC matching algorithm etc. to carry out splicing of video frame scene; Finally output The spliced ​​video often consumes a lot of resources and time. In some specific scenes that mainly require high integrity of panoramic stitching, such as combat test scenes, the above splicing method cannot meet the requirements due to the large amount of calculation and poor splicing effect. need

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  • Panoramic video rapid splicing method and system

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Embodiment Construction

[0096] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0097] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0098] A method for quickly stitching panoramic videos, comprising the following steps:

[0099] S1. Carry out offline calibration of the camera group through the calibration object image, obtain and store the projection transformation matrix of the camera;

[0100] S2. Obtain the image to be stitched collected by the camera group for the shooting area, perform offline detection and...

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Abstract

The invention discloses a panoramic video quick splicing method, which comprises the following steps of S1, performing offline calibration on a camera group through a calibration object image, and obtaining and storing a projection transformation matrix of a camera; S2, acquiring to-be-spliced images collected by the camera group for a shooting area, performing offline detection and registrationafter preprocessing, and processing the images through a projection transformation matrix of the camera to obtain and store an image mapping matrix of the to-be-spliced images; and S3, acquiring the current to-be-spliced image acquired by the camera group in real time, projecting the current to-be-spliced image into a standard coordinate system, calling the image mapping matrix to determine an overlapping region of the current to-be-spliced image, and then performing splicing fusion processing to generate a panoramic spliced image. The invention further provides a system for realizing the method, so that lossless fusion of the splicing seams in the splicing process is realized, the fusion algorithm is small in calculated amount, high in operation efficiency and better in splicing effect, the requirements of panoramic monitoring in various civil and military fields can be well met, and the method is suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of video image synthesis, in particular to a method and system for fast stitching of panoramic videos. Background technique [0002] The development and improvement of computer technology has driven the continuous progress of various video technologies. High-quality, high-definition images are gradually integrated into people's daily life, and video surveillance technology is no exception. Due to the continuous enhancement of video surveillance technology, people's requirements for video surveillance are also getting higher and higher. More and more information, on the other hand also requires higher and higher image quality. In the application scenarios of video surveillance, such as parking lots, railway stations, squares, traffic intersections, etc., because the viewfinder range of a single camera is very small, managers often need to observe several surveillance images back and forth, which will make th...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T7/80G06T7/33
CPCG06T3/4038G06T7/80G06T7/33G06T2207/10016G06T2207/20221
Inventor 刘洋杨成龙孙兆友陈爽爽魏炳捷李德祥周磊张兴佳
Owner 中国人民解放军63861部队
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