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Coal mining fully mechanized excavation face dynamic video image fusion method

A video image, fusion method technology, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as poor fusion effect

Active Publication Date: 2015-07-15
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic video image fusion method for fully mechanized coal mining face, which solves the problem of poor fusion effect when the camera angle of view is quite different

Method used

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  • Coal mining fully mechanized excavation face dynamic video image fusion method
  • Coal mining fully mechanized excavation face dynamic video image fusion method
  • Coal mining fully mechanized excavation face dynamic video image fusion method

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Embodiment 1

[0056] Embodiment 1: The dynamic video image fusion method: select the camera to place the axis, place two or more high-definition network cameras around the camera axis, and completely cover the entire coal mining fully mechanized excavation face; and the video captured by the adjacent camera The frame images should have about one-third of the overlapping area; then the obtained dynamic video of the fully mechanized coal mining face is fused, and the fusion steps of the dynamic video of the fully mechanized coal mining face are as follows:

[0057] 1. Camera calibration and video frame image distortion correction

[0058] During the process of the camera acquiring the video stream, the camera is calibrated before the video frame image processing, so as to establish the corresponding relationship between the two-dimensional space image and the three-dimensional space object, and the camera calibration method is Zhang Zhengyou's calibration method;

[0059] Through camera calib...

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Abstract

The invention belongs to dynamic video image fusion methods and discloses a coal mining fully mechanized excavation face dynamic video image fusion method. The coal mining fully mechanized excavation face dynamic video image fusion method comprises the steps that the camera placement axis is selected, and two or more megapixel network cameras are arranged around the camera axis and cover the whole coal mining fully mechanized excavation face; video frame images obtained by the adjacent cameras are required to have an overlapped area of about one third; then obtained coal mining fully mechanized excavation face dynamic videos are fused. The coal mining fully mechanized excavation face dynamic video image fusion method has the advantages that a cascade Hash feature matching algorithm uses two times of Hash mapping, and the feature matching precision and speed are ensured; a parallax tolerate transformation model uses a feature point growth rule and a dynamic programming algorithm, the video fusion speed is increased, the requirements for the positions of the cameras in the video fusion process are reduced, and a good dynamic video fusion effect can still be obtained for cameras with large parallax and large rotation. The coal mining working efficiency is improved, and the coal safe production is ensured.

Description

technical field [0001] The invention relates to a dynamic video image fusion method, in particular to a dynamic video image fusion method in fully mechanized coal mining face. Background technique [0002] The current monitoring system of coal mining fully mechanized excavation mostly adopts a single camera fixedly installed for monitoring, but a single camera can only monitor a scene with a fixed angle, and it is impossible to achieve comprehensive comprehensive excavation for a fully mechanized excavation face with a large viewing angle. monitor. Based on this problem, some coal mines adopt the method of installing multiple cameras. Although this method can monitor all the scenes, it needs to continuously observe multiple monitors during the monitoring process and frequently change the viewing angle, which will cause visual fatigue, and it is easy for monitoring personnel Miss the important information in the monitoring; some coal mines also adopt the method of installing...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T7/00
Inventor 姚睿夏士雄牛强周勇陈朋朋王重秋
Owner CHINA UNIV OF MINING & TECH
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