Demonstration of innovative techniques used for real-time closed-loop infrared scene generation

Olson, Eric M.; Coker, Charles F.; Coker, Jason S.; Garbo, Dennis L.

doi:10.1117/12.316376

Cited by 6 publications

(2 citation statements)

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“…The ZAA technique was introduced by Olson et al [1][2][3] to overcome the strong scintillation problems associated with the rendering of long-range targets that occupy only a few to fractional numbers of pixels within the field-of-view. Since that time there have been a number of alternative implementations, 1-5 each taking advantage of the characteristics of the available graphics hardware.…”

Section: Introductionmentioning

confidence: 99%

Real-time zoom anti-aliasing improvement using programmable graphics processing units

Gouthas

Williams

2006

SPIE Proceedings

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The zoom anti-aliasing (ZAA) procedure used for rendering computer-generated targets at long range is examined in the light of its lack of conformality with sampling theory. This has led to the development of a GPU-based conformal version, called Schade ZAA. It is shown that Schade ZAA leads to improvement in intensity errors and significantly less scintillation when the target subtends less than a single pixel in screen space. It is shown further that the intensity errors for the normal type of irregularly-shaped target of most user interest are considerably smaller than has been previously reported. This is a significant result in that it gives confidence that the intensity of small and point source targets can be successfully conserved within the ZAA process.

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Section: Introductionmentioning

confidence: 99%

Real-time zoom anti-aliasing improvement using programmable graphics processing units

Gouthas

Williams

2006

SPIE Proceedings

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“…2 The consequence of these deficiencies is that commercial graphics hardware either will generate real-time scenes characterized by a large amount of scintillation or will simply fail to properly render the target. In a seminal research program, Olson et al [2][3][4] addressed this problem in relation to the hardware-in-the-loop testing of infrared seeker systems and developed the zoom anti-aliasing ͑ZAA͒ technique 3 that ''provide͑s͒ an acceptable solution that strikes a balance between physical accuracy ͑spatial fidelity͒ and image framing rates.'' An alternative implementation that makes optimal use of the graphics hardware functionality, called corrected super sampling and scaling ͑CSSS͒, is reported here.…”

Section: Introductionmentioning

confidence: 99%

Aliasing and scintillation reduction in real-time computer graphics

Sills

Williams

2004

Opt. Eng

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Aliasing is unavoidable in real-time computer image generation due to the sampling processes occurring within the graphics hardware. In particular, aliasing produces scintillation effects and significant radiometric inaccuracy when targets are rendered at long range. This problem was alleviated some years ago by the development of a zoom anti-aliasing (ZAA) technique within infrared missile seeker hardware-inthe-loop simulations. An alternative ZAA technique based on extensive use of available graphics hardware functions is described here and compared to the original technique.

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Dynamic sprite-based real-time particle graphics

Sills

Williams

2004

Opt. Eng

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Demonstration of innovative techniques used for real-time closed-loop infrared scene generation

Cited by 6 publications

References 0 publications

Real-time zoom anti-aliasing improvement using programmable graphics processing units

Real-time zoom anti-aliasing improvement using programmable graphics processing units

Aliasing and scintillation reduction in real-time computer graphics

Dynamic sprite-based real-time particle graphics

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