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Stable imaging method applicable to two-dimensional wide-area scanning

An imaging method and wide-area technology, applied to navigation through velocity/acceleration measurement, navigation calculation tools, etc., can solve problems such as compensation accuracy limitation and image quality degradation

Active Publication Date: 2016-05-18
西安应用光学研究所
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Problems solved by technology

These methods require additional mechanical structures to assist, and the compensation accuracy is limited by the performance of the swing mirror, and the imaging quality is lower than that of the static state.

Method used

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  • Stable imaging method applicable to two-dimensional wide-area scanning
  • Stable imaging method applicable to two-dimensional wide-area scanning
  • Stable imaging method applicable to two-dimensional wide-area scanning

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] The stable imaging method suitable for two-dimensional wide-area scanning in this embodiment, its core is the cooperation of geographical stabilization and electronic image motion compensation, the forward movement of the photoelectric system is compensated by geographical stabilization, and the movement in azimuth is geographical stabilization Combined with electronic image motion compensation, the photoelectric system finally realizes clear imaging in the process of wide-area two-dimensional scanning. The specific method includes the following steps:

[0030] Step 1: Collect current aircraft data in real time: α, β, γ, h, θ AZ ,θ EL ; where α is the heading angle of the aircraft output by the inertial navigation system, β is the pitch angle of the aircraft output by the inertial navigation system, γ is the roll angle of th...

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Abstract

The invention provides a stable imaging method applicable to two-dimensional wide-area scanning. The core of the method is geographical stabilization and electron image movement compensation matching, forward movement of a photoelectric system is compensated in a geographical stabilization manner, the movement of the azimuth is compensated in a geographical stabilization and electron image movement combined manner, and clear imaging of the photoelectric system in the two-dimensional wide-area scanning process is finally realized. The method is mainly realized through algorithms, the structural form is simple, the imaging quality of the photoelectric system can be effectively improved, and the reliability of the photoelectric system can be improved.

Description

technical field [0001] The invention belongs to the technical field of airborne photoelectric reconnaissance, and specifically relates to a stable imaging method suitable for two-dimensional wide-area scanning. Clear imaging during two-dimensional sweeping. Background technique [0002] The electronic image motion compensation technology of photoelectric system visible light sensor CCD is currently widely used in space / airborne cameras. Since the CCD usually does not need to scan motion on the carrier, it only has one-dimensional forward motion, so the electronic image motion compensation The technology is mainly used to compensate the image motion of the forward motion of the carrier, such as "Frame Transfer Area CCD Electronic Image Motion Compensation Design" published in "Aerospace Return and Remote Sensing" Volume 30 in 2009 and "Microcomputer Information" 2010 "Image Motion Compensation Technology for Color Large Area Array CCD Cameras" in Volume 26 of 2010, there is ...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01C21/20
CPCG01C21/16G01C21/20
Inventor 陆红强张璟玥王惠林尹明东雷亮霍丽烨白陶艳闫明
Owner 西安应用光学研究所
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