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Multi-channel video real-time splicing method

A multi-channel video, video image technology, applied in the field of image processing, can solve problems such as long processing time

Inactive Publication Date: 2020-02-28
长沙品先信息技术有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to its offline nature, it can be processed in the background for a long time, so the splicing of video sequences can achieve better results, but its disadvantage is that the processing time is too long; the other type is based on the video streams of multiple cameras collected in real time. Splicing to get a video stream with a wider field of view. This kind of situation has relatively high requirements for real-time performance, and the speed of the video splicing algorithm is required to be fast enough.

Method used

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Embodiment Construction

[0092] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.

[0093] Such as figure 1 As shown, a multi-channel video real-time mosaic method provided in Embodiment 1 of the present invention includes the following steps:

[0094] S1. Collect and synchronize real-time video streams based on multi-channel buffer queues through multiple cameras;

[0095] Specifically, in step S1, the multi-channel video streams collected are synchronized, and each video stream corresponds to a video frame buffer queue. Its essence is to use the producer-consumer model of the operating system, where the frame buffer queue is a critical resource. The two threads of the producer thread and the consumer thread, the read and write synchr...

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Abstract

The invention discloses a multi-channel video real-time splicing method, and the method comprises the steps: firstly collecting real-time video streams based on a multi-channel buffer queue through amulti-channel camera, and synchronizing the real-time video streams; secondly, distortion correction and registration are carried out on video image frames which are collected by multiple cameras andhave overlapped parts; and finally, forming a panoramic video image stream comprising multiple paths of video stream images with perfect transition through image fusion. According to the invention, the problem of deformation of large-format scene images acquired by cameras such as a wide-angle lens and a fisheye lens is solved, the acquisition and synchronization of real-time video streams are realized, and the video splicing effect is good while the real-time performance of video splicing is ensured.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a multi-channel video real-time splicing method. Background technique [0002] In recent years, with the development of computer science and technology, computer image processing technology has also developed rapidly. Computer image processing technology is applied to various life scenes, which brings great convenience to people's production and life. Video image stitching technology is one of the research hotspots in the field of digital image processing and computer vision. [0003] Existing video stitching technologies are mainly divided into two categories: one is video sequence stitching, which uses image processing technology to stitch the video sequences of the same scene into a panoramic video image sequence with a wider field of view. Due to its offline nature, it can be processed in the background for a long time, so the splicing of video sequence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262H04N5/265G06T3/40
CPCG06T3/4038H04N5/2624H04N5/265
Inventor 刘湘辉
Owner 长沙品先信息技术有限公司
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