Photographing measurement method and device

A photogrammetry and image technology, applied in the field of photogrammetry methods and devices, can solve the problems of poor precision, difficult processing, inconvenient application of panoramic measurable technology, etc.

Inactive Publication Date: 2017-01-25
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a photogrammetry method and device, which solves the technical problems of inconvenient application, large amount of data, difficult processing and poor precision of the panoramic measurable technology in the prior art

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  • Photographing measurement method and device
  • Photographing measurement method and device

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] An embodiment of the present invention provides a photogrammetry method, such as figure 1 shown, including:

[0030] Step 101, acquiring image information;

[0031] Among them, twelve GoPro motion cameras are used to assemble a panoramic stereo camera, four pairs of binocular cameras in the horizontal direction, the horizontal viewing angle of the lens is 120°, and the vertical viewing angle is more than 90°, so the field of view of the horizontal stereoscopic camera can be completely covered; For stereo cameras, the field of view is 120°, which can cover the rest of the field of view, including the sky and the earth.

[0032] Step 102, performing distortion correction on adjacent images;

[0033] Among them, due to the ...

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Abstract

The invention relates to the technical field of photographing measurement and disclsoes a photographing measurement method and device. The photographing measurement method comprises: acquiring image information; carrying out distortion correction on adjacent images; carrying out feature point extraction on the adjacent images subjected to the distortion correction; determining control points of the adjacent images; splicing the adjacent images according to the control points; adopting equal-distance cylinder projection to generate a spliced image; calibrating according to a camera and acquiring elements of interior orientation; according to a space resection equation, calculating elements of exterior orientation of each image; according to the elements of interior orientation, the elements of exterior orientation of the adjacent images and a space intersection equation, calculating ground coordinates; measuring the ground coordinates. The photographing measurement method and device have the advantages of small calculation data quantity, simple treatment and relatively high precision; the camera does not need to be rotated by a camera cloud deck; real three-dimensional coordinates of any measureable point in a panorama can be solved through one time of photographing and a point cloud is generated, so that measurement of distances, slopes, areas and the like can be carried out.

Description

technical field [0001] The invention relates to the technical field of photogrammetry, in particular to a photogrammetry method and device. Background technique [0002] Take photos with a certain degree of overlap from different angles by the camera, and use related algorithms to stitch them together to generate panoramic images under different projections. It can provide virtual roaming functions and provide users with a 360° stereoscopic experience. It has also been widely used in various fields, but this This kind of image is just a splicing of two-dimensional photos, which is only three-dimensional visually and not measurable. The panoramas in the prior art can be measured, but most of them are based on two independent panoramic images. The overlapping areas need to be oriented with a large number of control points, and the internal and external orientation elements are solved. The amount of data is large, and each point in a panoramic image The measurement needs to ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00G01B11/28G01C3/00G01C9/00G06T3/00G06T3/40
CPCG01B11/285G01C3/00G01C9/00G01C11/00G06T3/0068G06T3/4038
Inventor 黄鹤杨军星邱冬炜姜浩赵焰王柳王东波杨军波
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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