A Parameter Setting and Adjusting Method Applied to Stereo Mapping Camera

A technology of a stereo mapping camera and an adjustment method, which is applied in the application field of aerospace optical remote sensors, can solve the problems of changing the atmospheric transmission path, affecting the entrance pupil radiance, inconsistent installation methods, etc.

Active Publication Date: 2015-11-04
北京航天创智科技有限公司
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Problems solved by technology

[0005] At present, the calculation of the sun altitude angle only considers the orbital parameters of the satellite, and the obtained sun altitude angle observed by the satellite is the camera, and there are usually several cameras on the surveying and mapping satellite, and the installation methods of different cameras on the satellite are inconsistent, resulting in different cameras. When imaging the same target, the imaging time and observation angle are different. This difference in observation conditions will cause changes in the atmospheric transmission path, thereby affecting the entrance pupil radiance of the same target before reaching different cameras.

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  • A Parameter Setting and Adjusting Method Applied to Stereo Mapping Camera
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  • A Parameter Setting and Adjusting Method Applied to Stereo Mapping Camera

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[0051] The structural composition and working principle of the present invention will be further described below in conjunction with the accompanying drawings.

[0052] Such as figure 1As shown, the method steps of a parameter setting and adjustment method applied to a stereoscopic mapping camera in the present invention are as follows:

[0053] 1) Determine the sun altitude angle, sun azimuth angle, camera observation azimuth angle and camera observation altitude angle; the sun altitude angle is the angle between the line connecting the sun and the ground target and the normal plane passing through the ground target; the sun The azimuth angle is the angle between the projection line of the line connecting the sun and the ground target on the earth's surface and the azimuth line passing the due north of the ground target on the earth's surface; the camera observation azimuth represents the projection and The included angle of the true north direction; the camera observation e...

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Abstract

The invention discloses a parameter setting and adjusting method applied to a stereo mapping camera. The method comprises the following steps: searching a stereoimaging model of a three-line-array mapping camera, providing the differences of the pupil-entrance radiances when three cameras are used for imaging the same target under different imaging conditions according to mounting modes and satellite orbit parameters of different cameras, and providing the output response differences of the three cameras in combination with the camera actual response degree and the differences of in-orbit integral time so as to adjust the other two cameras in real time by setting an imaging parameter of one camera (an envisage camera). The dynamic matching setting of the camera imaging parameter under different latitudes is provided, and the radiation quality of a stereo image is improved.

Description

technical field [0001] The invention relates to a parameter setting and adjustment method applied to a stereo surveying and mapping camera, and belongs to the technical field of aerospace optical remote sensor application. Background technique [0002] Aerospace surveying and mapping technology is an important part of aerospace earth observation and imaging technology, and it is a very important type of earth imaging observation satellite. It has gradually developed from an important part of military combat space support system to an important part of modern warfare combat capabilities. In the field of civilian surveying and mapping technology, aerospace surveying and mapping technology is also a modern and efficient means of surveying and mapping technology. [0003] Surveying and mapping cameras are important payloads on surveying and mapping satellites. The CCD surveying cameras that use push-broom imaging have attracted widespread attention in the world. According to the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/02
CPCG01C11/00
Inventor 何红艳齐文雯高卫军王小燕李方琦高凌雁赵占平李岩
Owner 北京航天创智科技有限公司
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