Modeling and Simulation of Digital Scene Image Synthesis Using Image Intensified CCD Under Different Weathers in Scene Matching Simulation System

Abstract

Abstract. The synthesis of digital real-time image in scene matching has great significant and application in military. We first propose a practical scene matching simulation system. Then most factors effecting on real time image synthesis including the change of missile's poses, hypsography, meteorology and the characteristics of image intensified CDD is investigated. The key mathematical models including eradiate aberrance and camera's aberrance of digital scene image synthesis are discussed. An overall designing framework for simulation system is proposed. Furthermore, a powerful simulated real time image synthesis system named by SMRT-SS oriented to Image Intensified CCD camera is developed. Finally some simulation results are given.

Effect analysis of motion compensation on imaging quality of spaceborne coded aperture hyperspectral imager

“…The amount of the above dislocation caused by different compensation modes is different, resulting in different error conditions of decoded and restored images. The hyperspectral scene data of visible near infrared spectrum in Qingdao area is used as the basic simulation data 12 . The spatial resolution of the data is 2m, the spectral range is 390nm ~ 960nm, the spectral resolution is 2.5nm, and the number of bands is 229.…”

A Method of Real-Time Image Correction for Multi-aircrafts Cooperative Detection

“…Multi-aircrafts cooperative work further through cooperative detection to complete cooperative reconnaissance and collaborative surveillance, collaborative search, collaborative tasks such as object recognition based on abundant and multidimensional battlefield sensitive information and to achieve the full range grasp of flight environment accurately [3][4][5].Scene matching guidance technology is one of the most important ways to realize the aerocraft precise guided and positioned, and is also a more advanced and effective guidance strategy after repeatedly battle tested [6,7]. For years, researchers at home and abroad made unremitting efforts in this area, many superior scene matching algorithms [8,9] were provided, and have made some research results in the algorithm performance evaluation, index system establishment and evaluation method [10,11], but for multi-aircrafts cooperative detection, real-time image geometric correction problem is rarely discussed. In fact, when attack the targets from different direction, multi-aircrafts will have corresponding geometric distortion in real-time image detection.…”