Anti-aliasing for infrared scene generation using programmable graphics and the NVIDIA Cg toolkit

Sills, Timothy G.

doi:10.1117/1.2212847

Cited by 1 publication

(1 citation statement)

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“…It supports many standard 3D model formats including OpenFlight, one of the most widespread formats. Following the demonstrations by several groups [5][6][7] , rendering operations are performed as much as possible by the graphics processing unit (GPU), either by using standard OpenGL commands, or through the use of shaders to program the rendering pipeline for more specific applications. Being natively supported by OSG, and not hardware specific, the OpenGL shading language (GLSL) was chosen.…”

Section: Approachmentioning

confidence: 99%

DRDC's approach to IR scene generation for IRCM simulation

Lepage

Labrie²,

Rouleau³

et al. 2011

Technologies for Synthetic Environments: Hardware-in-the-Loop XVI

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An object oriented simulation framework, called KARMA, was developed over the last decade at Defence Research and Development Canada -Valcartier (DRDC Valcartier) to study infrared countermeasures (IRCM) methods and tactics. It provides a range of infrared (IR) guided weapon engagement services from constructive to HWIL simulations. To support the increasing level of detail of its seeker models, DRDC Valcartier recently developed an IR scene generation (IRSG) capacity for the KARMA framework. The approach relies on Open-Source based rendering of scenes composed of 3D models, using commercial off-the-shelf (COTS) graphics processing units (GPU) of standard PCs. The objective is to produce a high frame rate and medium fidelity representation of the IR scene, allowing to properly reproduce the spectral, spatial, and temporal characteristics of the aircraft's and flare's signature. In particular, the OpenSceneGraph library is used to manage the 3D models, and to send high-level rendering commands. The atmospheric module allows for accurate, run-time computation of the radiative components using a spectrally correlated wide-band mode. Advanced effects, such as surface reflections and zoom anti-aliasing, are computed by the GPU through the use of shaders. Also, in addition to the IR scene generation module, a signature modeling and analysis tool (SMAT) was developed to assist the modeler in building and validating signature models that are independent of a particular sensor type. Details of the IR scene generation module and the associated modeling tool will be presented.

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Section: Approachmentioning

confidence: 99%