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An image stitching method and device

An image splicing and image splicing technology, applied in the field of image processing, can solve the problems of slow image splicing speed and low splicing efficiency, and achieve the effects of reducing computational overhead, improving image splicing speed and splicing efficiency, and reducing image noise.

Inactive Publication Date: 2017-05-17
CHINA SECURITY & FIRE TECH GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide an image stitching method and device to solve the problems of slow image stitching speed and low stitching efficiency in the prior art

Method used

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  • An image stitching method and device
  • An image stitching method and device
  • An image stitching method and device

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Experimental program
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Embodiment 1

[0076] In the embodiment of the present invention, the horizontal splicing of two frames of images is taken as an example. The horizontal splicing is the splicing of two frames of images arranged left and right. figure 2 The flow chart of the image mosaic method provided by Embodiment 1 of the present invention specifically includes the following processing steps:

[0077] Step 201. Acquire images to be stitched with overlapped regions with a horizontally fixed width.

[0078] In this step, two frames of images at the same time are collected by a high-precision image acquisition device, and the overlapping areas of the two frames of images are respectively on the right side of the first image to be stitched and on the left side of the second image to be stitched, as image 3 As shown, the horizontal fixed width of the overlapping area is N pixels, for example, N can be 100. During splicing, the first image to be spliced ​​is on the left side of the second image to be spliced...

Embodiment 2

[0107] In the embodiment of the present invention, the vertical splicing of two frames of images is taken as an example. The vertical splicing is the splicing of two frames of images arranged in an upward row. Figure 5 The flowchart of the image mosaic method provided by Embodiment 2 of the present invention specifically includes the following processing steps:

[0108] Step 501 , acquiring images to be spliced ​​with overlapping regions with a vertically fixed width.

[0109] In this step, two frames of images at the same time are collected by a high-precision image acquisition device, and the overlapping areas of the two frames of images are respectively on the lower side of the first image to be stitched and the upper side of the second image to be stitched, such as Figure 6 As shown, the vertical fixed width of the overlapping area is N pixels, for example, N can be 100. During splicing, the first image to be spliced ​​is above the second image to be spliced. The longi...

Embodiment 3

[0138] Based on the same inventive concept, according to the image stitching method provided by the above-mentioned embodiments of the present invention, correspondingly, Embodiment 3 of the present invention also provides an image stitching device, and its structural diagram is as follows Figure 7 shown, including:

[0139] An acquisition unit 701, configured to acquire two frames of images to be spliced ​​with overlapping regions;

[0140] The first determining unit 702 is configured to determine, in the overlapping area of ​​each frame of the image to be spliced, the registration feature area of ​​the image to be spliced ​​by grayscale calculation;

[0141] An alignment unit 703, configured to align two frames of images to be stitched according to the registration feature regions of the images to be stitched;

[0142] The second determination unit 704 is configured to determine the pixel points included in the stitching seam with the smallest gray scale according to a pre...

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Abstract

The invention discloses a method and a device for splicing images. The method comprises the following steps of obtaining two frames of to-be-spliced images with an overlapping area; determining the registration feature area of the to-be-spliced image through gray calculation in the overlapping area of each frame of to-be-spliced image; aligning the two frames of to-be-spliced images according to the registration feature area of the to-be-spliced image; determining the pixel point contained in the splicing joint with the minimum gray value by the preset processing method in the overlapping area of the first to-be-spliced image and the second to-be-spliced image after aligning; splicing the first to-be-spliced image and the second to-be-spliced image according to the splicing joint. Compared with the prior art, the method has the advantages that the splicing speed and splicing efficiency of the image are improved, and the image noise is reduced.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image splicing method and device. Background technique [0002] The popularity of digital imaging equipment makes digital images widely used. In actual scientific research and engineering projects, ultra-wide viewing angle images that exceed the viewing angle of the human eye are often used. However, due to distance limitations, the viewing angle of ordinary digital imaging equipment is usually unable to capture large-sized objects in a single photo. . In order to obtain high-resolution images with a large viewing angle, a wide-angle lens is generally used to shoot. However, in some special environments, the limitation of the device itself makes the field of view width of the image unable to meet the application requirements. For example: although a wide-angle lens can be used to obtain images with a wide viewing angle, But the edge of the wide-angle lens wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50
Inventor 贾惠柱陈方平解晓东文湘鄂
Owner CHINA SECURITY & FIRE TECH GRP