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Large-breadth equivalent center projection image seamless splicing method

A central projection and seamless splicing technology, applied in photogrammetry/video metrology, measuring devices, instruments, etc., can solve problems such as gaps, small digital camera field of view, and poor performance of digital cameras

Pending Publication Date: 2021-06-11
深圳市奇德宝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some performances of digital cameras are far inferior to traditional silver-salt film imaging. The CCD or CMOS photosensitive sensor area is affected by materials and processes, and the image-bearing surface is much smaller than the film of silver-salt analog cameras with silver halide as the photosensitive material, resulting in The field of view of digital cameras is small at the same focal length
[0003] In addition, in the process of splicing by camera shooting, adjustments to projection splicing, etc. are generally achieved simply by adjusting the position of the camera, etc., but the adjustment accuracy is small, which may result in gaps after splicing

Method used

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  • Large-breadth equivalent center projection image seamless splicing method
  • Large-breadth equivalent center projection image seamless splicing method
  • Large-breadth equivalent center projection image seamless splicing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The present invention proposes a method for seamless splicing of large-format equivalent central projection images, such as figure 1 shown, including:

[0075] Step 1: collecting the projection information of the target object photographed by the photographing system;

[0076] Step 2: Projecting and displaying the projection information, obtaining a set of center points in the corresponding large-format equivalent central projection image, and splicing the projection images according to the set of center points;

[0077] Step 3: Obtain the current horizontal parameter and the current vertical parameter of the shooting system, and adjust the shooting system according to the preset direction, and obtain the adjusted horizontal parameter and the adjusted vertical parameter;

[0078] Step 4: Determine the first horizontal difference between the current horizontal parameter and the adjusted horizontal parameter and the second vertical difference between the current vertical...

Embodiment 2

[0085] On the basis of Embodiment 1, in step 1, collecting the projection information of the target object photographed by the photographing system includes:

[0086] Determine the shooting route of the shooting system, and calibrate the cameras on the shooting route;

[0087] Based on the shooting route, establish the correlation between the shooting pixels of the target object in different orientations, the shooting distance and the camera's own pixels of the camera;

[0088] Adjusting the setting parameters and shooting distance of the corresponding shooting route according to the association relationship;

[0089] Based on the adjusted shooting route, the projection information of the target object in the corresponding orientation is shot.

[0090] In this embodiment, the shooting route includes, for example, the initial position of the camera, the initial direction, the shooting direction, and the display location corresponding to the shooting content.

[0091] In this ...

Embodiment 3

[0096] On the basis of Embodiment 1, in step 2, the projection information is projected and displayed, including:

[0097] Create a standard 3D scene;

[0098] Acquiring the three-dimensional coordinates of each information point in the projection information;

[0099] projecting and displaying the projection information in the standard 3D scene based on the 3D coordinates, so as to perform 3D mapping display of the target object in the 3D scene;

[0100] Splicing and judging the target objects displayed by the three-dimensional mapping, the judging process includes:

[0101] Determining the orientation models of different orientations, and obtaining the three-dimensional edge coordinates of the orientation model, determining the edge distance between adjacent three-dimensional edge coordinates, and judging the size of the edge distance and the edge distance;

[0102] When the edge distance is greater than a preset distance, it is determined that there is a splicing gap betw...

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Abstract

The invention provides a large-breadth equivalent center projection image seamless splicing method. The method comprises the following steps: step 1, collecting projection information of a target object shot by a shooting system; 2, performing projection display on the projection information to obtain a central point set, and splicing projection images; 3, obtaining a current horizontal parameter and a current vertical parameter of a shooting system, and adjusting the shooting system according to a preset direction to obtain an adjusted horizontal parameter and an adjusted vertical parameter; 4, determining a first horizontal difference value between the current horizontal parameter and the adjustment horizontal parameter and a second vertical difference value between the current vertical parameter and the adjustment vertical parameter, and judging difference information of the first horizontal difference value and the second vertical difference value to the shooting system based on a preset adjustment direction; and 5, collecting current shooting parameters and difference information of the shooting system, obtaining position offset information of the central point, correcting the central point based on the position offset information, realizing seamless splicing, and improving the splicing precision.

Description

technical field [0001] The invention relates to the technical field of intelligent projection stitching, in particular to a method for seamless stitching of large-format equivalent central projection images. Background technique [0002] At present, digital cameras have become the mainstream technology for digital photogrammetry and computer vision data acquisition. Practical digital cameras need to have both high resolution and large field of view. However, some performances of digital cameras are far inferior to traditional silver-salt film imaging. The CCD or CMOS photosensitive sensor area is affected by materials and processes, and the image-bearing surface is much smaller than the film of silver-salt analog cameras with silver halide as the photosensitive material, resulting in The field of view of a digital camera is relatively small at the same focal length. [0003] In addition, in the process of splicing by camera shooting, adjustments to projection splicing and t...

Claims

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Application Information

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IPC IPC(8): G01C11/02G01C11/00
CPCG01C11/00G01C11/02
Inventor 杨培春
Owner 深圳市奇德宝科技有限公司
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