Results 181 to 190 of about 30,649 (218)
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Interpretation of star test pattern images
Medical Physics, 1977The star test pattern image contains a large amount of information about the focus OTF which is not presently used. A mathematical analysis of these images for the special case of separable and symmetrical focal spots is presented. Circular blur loci are identified and their changes over the imaging field are described.
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2017
Background/Introduction Description of activity and work performed Conclusion and Recommendations Personal/Organisational information ...
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Background/Introduction Description of activity and work performed Conclusion and Recommendations Personal/Organisational information ...
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2018
Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information ...
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Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information ...
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Imaging Stars and Their Environments with the VLTI
Astrophysics and Space Science, 2003The opportunity to deliver high-angular resolution model-independent images is one of the most attractive prospects for optical/infrared interferometry. In this paper I use simple imaging simulations to identify some of the practical difficulties that may arise in achieving this goal with the VLTI.
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Techniques for surface imaging of stars
Publications of the Astronomical Society of the Pacific, 1993Surface imaging of stars from the profiles of spectral lines, has become an important tool in modern astrophysics. It is presently used for mapping the distribution of chemical elements on Ap stars and the variation in temperature over the surface of late-type stars. Magnetic field maps will be produced as soon as high quality polarization observations
N. E. Piskunov, J. B. Rice
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Star image recognition based on mutual star distribution [PDF]
, 2018 info:eu-repo/semantics ...
Jiang, Di +2 more
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Molecular imaging in oncology: Current impact and future directions
Ca-A Cancer Journal for Clinicians, 2022Martin Pomper, Steven Rowe
exaly
Star image processing method of star sensor based on star points prediction
2022 China Automation Congress (CAC), 2022Lei Zhang +4 more
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2009
Abstract : The primary goal of this program is to provide a flight demonstration of a small low power star camera capable of providing attitude knowledge of 0.02 degree or better. The development of such science-enabling technology is critical for space-flight mission on small spacecraft, such as CubeSats, that cannot afford the mass, power or cost of ...
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Abstract : The primary goal of this program is to provide a flight demonstration of a small low power star camera capable of providing attitude knowledge of 0.02 degree or better. The development of such science-enabling technology is critical for space-flight mission on small spacecraft, such as CubeSats, that cannot afford the mass, power or cost of ...
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