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A panoramic image splicing method based on a camera geometric position relation

A panoramic image and camera technology, applied in the fields of photogrammetry and computer vision, can solve the problems of high time overhead and low efficiency

Active Publication Date: 2019-06-18
WUHAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Due to the need to calculate various energy costs and determine the optimal splicing line through an optimization algorithm, this method also has the disadvantages of high time consumption and low efficiency.

Method used

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  • A panoramic image splicing method based on a camera geometric position relation
  • A panoramic image splicing method based on a camera geometric position relation
  • A panoramic image splicing method based on a camera geometric position relation

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Embodiment Construction

[0051] Below in conjunction with the accompanying drawings and embodiments of the present invention, the technical solution of the present invention is analyzed and explained in detail, and the step flow during specific implementation is as attached Figure 7 , the specific implementation process of the embodiment can be summarized as the following 5 steps:

[0052] Step 1: Calibrate the multi-camera system.

[0053] In the embodiment of the present invention, high-quality wide-angle cameras with six imaging parameters and similar performance are used according to figure 1 Structures shown in (a) and (b) assemble a multi-camera system. Five of them are installed on the side to shoot the scene in the horizontal direction. The optical centers of the cameras are roughly distributed on a circle (numbered 1, 2, 3, 4, and 5 in clockwise order), and the other camera is installed on the top with the optical axis pointing to Zenith direction (numbered 6). After the multi-camera syst...

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Abstract

The invention provides a panoramic image splicing method based on a camera geometric position relation, and the method comprises the steps: 1, assembling a multi-camera system, carrying out the calibration, wherein the multi-camera system is composed of a plurality of cameras; Step 2, establishing a panoramic coordinate system, and obtaining an external parameter between each camera and the panoramic coordinate system; Step 3, performing distortion correction on the original distorted image to obtain a corrected image meeting the three-point collinearity of object point-photocenter-image points and removing a part of overlapped areas among the images shot by the adjacent cameras, and mapping the images subjected to overlapping removal to the panoramic spherical surface; And step 4, unfolding the panoramic spherical surface to obtain a spliced panoramic image. According to the method, the splicing efficiency of the panoramic images is improved, and the panoramic images can be obtained through splicing on a real-time level.

Description

technical field [0001] This method belongs to the field of photogrammetry and computer vision. It involves the calibration of internal and external parameters of the camera and the establishment of a panoramic mapping model. It does not need to calculate the transformation matrix between the image sequences to be stitched or find the optimal splicing line according to the characteristics of the image itself. Under the premise of obtaining panoramic images, the splicing speed is greatly improved. Background technique [0002] Panoramic images are widely used in street view maps, digital cities, mobile surveying and other fields because they can provide 360-degree all-round scene information. Therefore, how to quickly and accurately obtain panoramic images of different scenes is particularly important. The traditional method usually uses one or more cameras to shoot image sequences with a certain degree of overlap between them, and then calculates the transformation matrix bet...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T7/80G06T5/00
Inventor 黄玉春邱歆煜田程硕刘洋洋
Owner WUHAN UNIV
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