Long exposure imaging-based equivalent fuzzy moving target image simulation method and long exposure imaging-based equivalent fuzzy moving target image simulation system

Abstract

A long exposure imaging-based equivalent fuzzy moving target image simulation method and a long exposure imaging-based equivalent fuzzy moving target image simulation system belong to the motion analysis part in the ordinary image data processing or production field. The method includes the following steps: according to a real fuzzy moving target image, another group of parameters are obtained by backward induction, the light intensity and moving speed of a substitutive target, the lateral magnification of a substitutive optical system and the exposure time of an image sensor are adjusted, the grey value is adjusted, and thereby a result which is the same as the fuzzy moving target image is obtained. The system adopts the image sensor to cooperate with the substitutive target, the exposure time of the image sensor can be adjusted, the image sensor can carry out long-exposure time imaging, and the substitutive target can two-dimensionally move in the direction of the vertical optical axis within the field range of the substitutive optical system. The method and the system can use a low-temperature target or a visible target to equivalently substitute for a high-temperature target and low-speed motion cooperating with long exposure time to equivalently substitute for high-speed motion, consequently, the difficulty of an experiment is decreased, the safety of the experiment is enhanced, moreover, multiple groups of experimental data can be easily obtained, and the experimental cost can be greatly reduced.

Description

technical field [0001] The method and device for equivalent simulation of blurred images of moving objects based on long-exposure imaging belong to the motion analysis part in the field of general image data processing or generation, and in particular relate to an equivalent simulation method and device for blurred images of moving objects based on long-exposure imaging. Background technique [0002] The moving image transfer function is a physical quantity that quantitatively describes the degree of image quality degradation caused by the movement of the target image on the surface of the image sensor. The motion information of the target image is extracted from a motion blurred image to obtain the moving image transfer function, which can be used for the motion blurred image. Restoration provides a theoretical basis. [0003] This technology can be directly applied in the field of image information acquisition of aerospace and fast-moving devices, imaging ultra-high-speed ...

AI Technical Summary

Problems solved by technology

[0011] The present invention aims at the problem of how to simulate the high-temperature and high-speed target in the real scene under the experimental conditions and obtain the motion blurred image with the same effect in the prior art, and proposes an equivalent simulation of the blurred image of the moving target based on long-exposure imaging Method and device; the method and device can equivalently replace high-temperature targets with low-temperature targets or visible light targets, and equivalently replace high-speed motion with low-speed motion combined with long exposure time, which not only reduces the difficulty of the experiment, improves the safety of the experiment, and is easy to obtain Multiple sets of experimental data greatly reduce the cost of the experiment

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