Real-time image visualization for sensors

David C. Anding; Alexander Szabo

doi:10.1117/12.241100

24 May 1996 Real-time image visualization for sensors

David C. Anding, Alexander Szabo

Proceedings Volume 2741, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing; (1996) https://doi.org/10.1117/12.241100
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

Real-time image visualization simulation for sensors operating against synthetic environments comprised of natural backgrounds, cultural features, mobile objects, and dynamic weather is now a reality. A commercial software product is available which is capable of providing sensor image visualization for any spectral filter from the visible through the far infrared. The produce is called SensorVision^TM and is a module of a product called Vega^TM. It is built upon IRIS Performer^TM and OpenGL^TM software and is targeted for use on Silicon Graphics Onyx^TM computers with InfiniteReality^TM or RealityEngine2^TM graphics hardware. Vega with SensorVision is ideally suited to provide the scene image input to a real-time hardware-in-the-loop sensor simulation ranging from image intensified night vision goggles, to midwave FLIRs, to longwave FLIRs. SensorVision images are quantitative (each image pixel is expressed in watts/cm²/steradian), are computed in real-time, and represent the diurnal effects of weather (including surface temperature variation) on scene images. This paper presents the radiometric processes and algorithms used by the software when computing its output images and discusses the use of the software in hardware-in-the-loop simulation. The paper also highlights software capabilities and features, e.g.: Images include reflection from sun/moon and ambient sky illumination, and thermal emission from extended polygons with radiometric shading between vertices, and atmospheric attenuation and path radiance with pixel line- of-sight variability; Polygon surface temperatures of natural backgrounds and cultural features are computed asynchronously and continuously updated throughout diurnal cycle; Polygons are radiometrically textured and spatially correlated with visible RGB textures.

Citation Download Citation

David C. Anding and Alexander Szabo "Real-time image visualization for sensors", Proc. SPIE 2741, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing, (24 May 1996); https://doi.org/10.1117/12.241100

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