Quick reflector image stabilization system and method based on relevant detection of image

Abstract

The invention discloses a quick reflector image stabilization system and method based on relevant detection of an image; and the system stably tracks the jitter optical axis of a photoelectric imaging system in a motion or vibration environment through the defection light beam of a quick reflector. The system first detects the offset of an unstable optical axis in real time through a related method of the image, the offset of the optical axis is fed back to a controller of the quick reflector, so that the deflection of the quick reflector is controlled in real time and the stable optical axis is realized. According to the system, the image can be stabilized in a single frame, the problem that the image of a high-resolution camera is vague because the optical axis jitters within the integral time is solved, and the imaging quality of the imaging system is improved.

Description

Technical field: [0001] The present invention relates to the image stabilization technology of photoelectric imaging system, in particular to a fast mirror image stabilization system and method based on image correlation detection Background technique: [0002] When the airborne, shipborne and space imaging systems image the target, there will be relative movement between the object image and the photosensitive element when the camera is exposed due to the movement, flutter and attitude changes of the platform, which will cause imaging blur and The smearing effect often degrades the image quality to a certain extent, and reduces the contrast and resolution, especially for high-resolution cameras. This kind of degradation can no longer meet the requirements of obtaining high-resolution image quality only by improving the resolution of the imaging device or simply post-image processing. Therefore, how to reduce or even eliminate the impact of external interference on imaging q...

AI Technical Summary

Problems solved by technology

The main defect of optical image stabilization technology is that it is only suitable for environmental conditions with small vibrations, and the structure and manufacturing process of the compensator are too complicated

At the same time, if only relying on optical elements such as prisms, mirrors or optical wedges for passive compensation, the stabilization capability is greatly limited

Electronic image stabilization technology is a technology that uses digital image processing to directly determine the offset of the image sequence and compensate it. The electronic image stabilization method only removes the disturbance caused by the unintentional shake of the camera between the frames of the video image sequence. It can only make the video sequence Visually produce a stable playback effect during playback, but cannot stabilize a single image within the exposure time, that is, cannot really improve the resolution of its imaging

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