Three-dimensional modeling method and system combining dome-screen camera and depth camera

A technology of depth camera and 3D modeling, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as unsatisfactory, and achieve the effect of overcoming time-consuming, correcting deviation, and fast calculation

Active Publication Date: 2018-10-09
CHINA GERMANYZHUHAIARTIFICIAL INTELLIGENCE INST CO LTD +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Both RGB-D cameras and dome cameras cannot meet the above requirements when performing 3D modeling respectively

Method used

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  • Three-dimensional modeling method and system combining dome-screen camera and depth camera
  • Three-dimensional modeling method and system combining dome-screen camera and depth camera
  • Three-dimensional modeling method and system combining dome-screen camera and depth camera

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Embodiment

[0091] Such as image 3 As shown, it is an example of extracting feature points in step S5; Figure 4 As shown, it is an example of performing feature point matching in step S5; Figure 5 Shown is the dense point cloud and camera position obtained based on the three-dimensional information obtained by the depth camera. The circle with a number indicates the camera position. In practical applications, it is clearer than the sparse point cloud obtained by a dome camera, and a more accurate three-dimensional model can be established. On the basis of the precise camera position, the mapping can be performed according to the camera position, because each dome camera has the color information of the two-dimensional panoramic photo that it is located at the camera position.

[0092] In step S9, the three-dimensional model is automatically mapped, and the two-dimensional panoramic photo taken by the dome camera at a certain position in space is pasted to the corresponding position of the ...

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Abstract

The invention provides a three-dimensional modeling method nuclear system combining a dome-screen camera and a depth camera, which relates to the technical field of three-dimensional imaging modeling.The system at least comprises the depth camera and a dome-screen camera. The method comprises eight steps that S1, a dome-screen camera lens and a depth camera lens are fixed at the same position inthe space; S2, photographing is carried out by using the dome-screen camera; S3, preliminary positioning is carried out through a VSSLAM algorithm; S4, the three-dimensional information and space information in the three-dimensional picture are adopted for calibration; S5, further accurate positioning is carried out; S6, a dense point cloud is formed; S7, the accurate dense point cloud is furtherobtained; S8 digital modeling is carried out to generate a three-dimensional model; S9 mapping of the three-dimensional model is automatically carried out according to the color information in the two-dimensional panoramic photo. The invention is advantageous in that the three-dimensional model has the advantages of the dome-screen camera and the depth camera at the same time, and the three-dimensional model is more accurate; the defects that the angle of the depth camera is single, the vision field is limited, and the dome-screen camera is prone to generating errors are solved.

Description

Technical field [0001] The invention relates to the technical field of three-dimensional imaging modeling, in particular to a three-dimensional modeling method combining a spherical screen camera and a depth camera. Background technique [0002] Three-dimensional modeling technology is the process of data representation of objects in three-dimensional space. The three-dimensional model can be represented by using the three-dimensional space points of the collected objects to form a point cloud. The point cloud can be connected by triangular grids, lines, and polygonal grids. Rebuild the surface of the model. Three-dimensional models can be used in movies, games, manufacturing and other fields. Three-dimensional modeling technology belongs to a multidisciplinary research field and is an important application of computer graphics and image processing in engineering. [0003] With the advent of RGB-D cameras, RGB-D cameras have the advantages of low price, real-time acquisition, good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T7/55
CPCG06T7/55G06T17/00G06T2207/10028
Inventor 崔岩
Owner CHINA GERMANYZHUHAIARTIFICIAL INTELLIGENCE INST CO LTD
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