Asteroid 3D simulation model stereo reconstruction method
A technology for simulating models and asteroids, which is applied in the field of computer vision and can solve the problems of difficulty in obtaining asteroid image data, insufficient capture of surface details, and difficulty in 3D modeling of asteroids.
Active Publication Date: 2021-08-24
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
The exploration of asteroids has always been a project of continuous development in my country's aerospace industry. However, due to the difficulties in obtaining asteroid image data, the data that can be used for 3D reconstruction of asteroids is very limited. Die a puzzle
In addition, the problem of insufficient capture of surface details by traditional 3D reconstruction methods has always existed
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[0045] The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0046] Such as figure 1 Shown is a flow chart of the present invention. In this embodiment, the 3D asteroid simulation model is a simulated asteroid model. The full English name of SPC is Stereo Photoclinometray, and the Chinese meaning is photometric method. The present invention takes the Unity platform in the prior art as the execution subject, and performs the following methods on the Unity platform.
[0047] A method for three-dimensional reconstruction of an asteroid 3D simulation model, comprising:
[0048] (1) Based on the Unity platform, create a new 3D asteroid simulation model;
[0049] (2) Initialize the position of the 3D asteroid simulation model, the position of the light source, the position of the visual camera and the position of the laser camera;
[0050] (3) change the ang...
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The invention discloses a three-dimensional reconstruction method for an asteroid 3D simulation model. The method comprises the following steps: acquiring 3D asteroid simulation model pictures collected by a visual camera at different illumination angles and different rotation angles of a 3D asteroid simulation model; acquiring 3D asteroid simulation model pictures under different conditions are acquired, generating corresponding mask pictures, and carrying out photometric stereo reconstruction on the mask pictures; then calculating the surface albedo of the 3D asteroid simulation model and the surface depth of the 3D asteroid simulation model, generating photometric stereo models maplet at different angles, and matching and fusing the 3D asteroid simulation models at different angles by using ICP features to obtain a multi-view photometric stereo three-dimensional model of the 3D asteroid simulation model. According to the method, data required by asteroid photometric three-dimensional reconstruction is simulated and generated, the problem of insufficient asteroid data is solved, a photometric three-dimensional model maplet fusing multiple angles is provided, and the overall structure can be observed while surface details are recovered.
Description
technical field [0001] The invention relates to a three-dimensional reconstruction method of an asteroid 3D simulation model, which belongs to the technical field of computer vision. Background technique [0002] Photometric stereoscopic reconstruction technology has been used in the industry for surface detection. Because of its sensitivity to the detection of surface texture details, the use of shadows can conveniently and quickly detect the gaps or dents on the surface of objects. In recent years, it has also been gradually used in 3D reconstruction to restore the surface. texture. [0003] As an important part of simulation technology, virtual reality technology is organically integrated with various technologies such as computer graphics, computer simulation technology, human-computer interaction technology, multimedia information processing technology and information sensing technology. An intersectional virtual technology that performs calculations based on sensory p...
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IPC IPC(8): G06T17/00G06T7/80
CPCG06T17/00G06T7/80G06T2207/10028
Inventor 高浩甘燕燕胡海东
Owner NANJING UNIV OF POSTS & TELECOMM