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Real time self-adapting processing method of image mobile imaging

A processing method and self-adaptive technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as clear imaging without better online real-time self-adaptive processing, and achieve fast speed, high operation frequency, and operation complexity low effect

Inactive Publication Date: 2008-10-01
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

To sum up, there is no better online real-time adaptive processing solution for clear imaging of high-speed moving small targets with unknown speed

Method used

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  • Real time self-adapting processing method of image mobile imaging

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Embodiment Construction

[0030] According to the real-time adaptive processing method described in the specification, it realizes the structural diagram of the platform as shown in image 3 As shown, the platform is composed of an imaging optical system 1, a two-dimensional image motion compensation piezoelectric tilting mirror 2, a focal plane detector 3, a two-dimensional tracking and pointing turntable 4, and a real-time processing and control mechanism 5, wherein:

[0031] The imaging optical system 1 adopts an ordinary optical telescope with an aperture of 150mm, a focal length of 1800mm, an F number of 12, and a resolution of <1". The instantaneous field of view of the system is 8urad, and the total field of view is 0.47°;

[0032] The two-dimensional image motion compensation piezoelectric tilting mirror 2 adopts a four-point XY axis tilting platform, the closed-loop tilt angle can reach ±2mrad, the resolution can reach 0.05urad, the mirror diameter is 50mm, the closed-loop linearity is 0.2%, and...

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Abstract

The invention discloses a real time self-adapting processing method of anastigmatic imaging, which is a real time self-adapting processing method of anastigmatic imaging in a high-speed movement small-object imaging system. According to the method, small objects in high-speed movement can be automatically searched and found, FPGA and DSP are used as the real time on-line processing platform, an image reinforcement and inter-frame correlation identification algorism with low complexity is adopted, effect of fake objects are removed to obtain movement characteristics of the objects, so as to drive a high-precision two-dimensional piezoelectricity tilting mirror to complete self-adapting movement compensation, thereby realizing clear imaging of the high-speed movement small-objects.

Description

technical field [0001] The invention relates to an image acquisition technology, in particular to an adaptive real-time processing method for motion-compensated image-elimination imaging of a high-speed moving small target, which is applied to the acquisition of high-reliability information of a fast-moving small target in the distance. Background technique [0002] High-speed moving small targets are an important target for infrared image acquisition, and have also been applied in visible light images in recent years. The imaging of this type of target has the advantages of small target size (about less than 1m), long imaging distance (several kilometers), relatively single imaging background and slow change, extremely fast moving speed of the target (up to 1km / s), and high imaging efficiency of the target. It occupies no less than 4×4 pixels and other characteristics. Traditional imaging methods generally have low spatial resolution and are not sensitive to image motion b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/20G01C11/02
Inventor 蒋鑫丁雷
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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