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Moon-oriented high-resolution common-rail three-dimensional imaging method and device

A stereo imaging, high-resolution technology, used in measuring devices, instruments, mapping and navigation, etc., can solve the problems of low speed-to-height ratio compensation accuracy and large speed-to-height ratio error.

Inactive Publication Date: 2013-03-27
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0008] In order to apply the existing multi-line array CCD to the lunar satellite, it is necessary to solve the technical problems of large velocity-to-height ratio error and low velocity-to-height ratio compensation accuracy. device

Method used

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  • Moon-oriented high-resolution common-rail three-dimensional imaging method and device
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  • Moon-oriented high-resolution common-rail three-dimensional imaging method and device

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Embodiment Construction

[0109] like figure 1 As shown, the high-resolution co-orbit stereoscopic imaging device for the moon includes an on-board camera unit and an on-board computer. The on-board camera unit includes two parallel multi-line array CCD image sensors and a camera control unit. On the focal plane of the optical system, there is a certain distance AB between the two multi-line array CCD image sensors, and the distances between the two multi-line array CCD image sensors and the focal point F are respectively AF and BF. The connection line between B and camera optical center C constitutes the front viewing axis AC and the back viewing axis BC respectively, and the angle ∠ACF is called the front viewing angle, and ∠BCF is called the back viewing angle. (See Image 6 )

[0110]When shooting images, since the two multi-line array CCD image sensors are set on the same focal plane of the large field of view optical system, at the same time, the obtained images of different viewing angles are ...

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Abstract

The invention relates to moon-oriented high-resolution common-rail three-dimensional imaging method and device. The method comprises the following steps of: (1) making preparations on the ground; (2) preparing a camera; and (3) taking pictures. In the invention, the traditional multiple linear CCD (charge-coupled device) is applied to the lunar satellite. The invention solves the technical problems of large velocity-height ratio error and low velocity-height ratio compensation accuracy. In the moon-oriented high-resolution common-rail three-dimensional imaging method and device provided by the invention, the ordinary satellite platform attitude control method can be utilized, i.e. the principal optical axis of the camera always points to the heart of the moon, and high-resolution common-rail three-dimensional imaging is realized.

Description

technical field [0001] The invention relates to a method for three-dimensional imaging of the moon with high resolution on the same track, in particular to a method for three-dimensional imaging of the moon with high resolution on the same track in a lunar exploration satellite. Background technique [0002] The average reflection coefficient of the earth is 38%, while that of the moon is only 6.8%, so it is more difficult to obtain high-resolution images of the lunar surface in the self-push broom working mode than that of the earth. The three-dimensional image of the full moon, according to the current camera sensitivity, the geo-element resolution cannot be better than 10m. After using the multi-line array CCD, the sensitivity can be increased by about two orders of magnitude, but the multi-line array imaging must ensure that each line array imaging Synchronization requires the use of speed-height ratio compensation technology, and for lunar satellites, corresponding to e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00
Inventor 赵葆常高伟汶德胜杨建峰薛彬常凌颖宋宗玺
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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