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Method for splicing tunnel images without identification

A technology without logos and images, which is applied in the field of image processing, can solve the problems of heavy workload and difficult promotion, and achieve the effect of uniform fusion edge

Inactive Publication Date: 2014-09-17
樊晓东
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the traditional operation and maintenance of subway tunnels, there is a method of artificially pasting physical signs on the tunnel surface to assist image fusion. This method has too much workload and is difficult to promote

Method used

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  • Method for splicing tunnel images without identification
  • Method for splicing tunnel images without identification
  • Method for splicing tunnel images without identification

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0025] Such as figure 1 As shown, the method for splicing tunnel images without logos of the present invention comprises the following steps:

[0026] Multiple area array CCD cameras are used to obtain different surface area images of the same section of the subway tunnel. These images have overlapping parts and contain the entire surface information of the tunnel section, such as Figure 5 shown;

[0027] The linear laser is used to mark the overlapping position of adjacent area array CCD cameras, and the images acquired by two adjacent cameras contain laser lines emitted by the same laser, such as figure 2 .

[0028] Grayscale transformation and hard threshold segmentation are performed on the image acquired by each camera to obtain a binary contour feature map, and the ...

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Abstract

The invention relates to a method for splicing tunnel images without identification. A high-strength linear laser is adopted for assisting in marking, the position of imaging rays of laser rays on a camera is identified through an image detection algorithm, and the shot tunnel images are spliced and fused through the marked position. Transition of the image fusion edges is made even in a mode for averaging pixels with parameters near the laser rays.

Description

technical field [0001] The invention relates to a method for splicing tunnel images without signs, and belongs to the field of image processing. Background technique [0002] Image stitching is the technique of stitching several overlapping images (which may be obtained at different times, different viewing angles, or different sensors) into a large seamless high-resolution image. Image registration and image fusion are two key technologies of image stitching. 201110170502.5 The method of laser meat image acquisition based on the double laser triangulation method discloses an image fusion scheme. Since the tray is rotating, this case does not involve image registration. Image registration is the basis of image fusion, and the calculation of image registration algorithm is generally very large, so the development of image mosaic technology largely depends on image registration. 201210414337.8 relates to an image synthesis device and an image processing method. The method is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
Inventor 樊晓东孟俊华唐文平刘家宾樊晓莉惠艳萍冯欣冯宾田明
Owner 樊晓东
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