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ACM SIGGRAPH 2009 papers, 2009
Camera flashes produce intrusive bursts of light that disturb or dazzle. We present a prototype camera and flash that uses infra-red and ultra-violet light mostly outside the visible range to capture pictures in low-light conditions. This "dark" flash is at least two orders of magnitude dimmer than conventional flashes for a comparable exposure ...
Dilip Krishnan, Rob Fergus
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Camera flashes produce intrusive bursts of light that disturb or dazzle. We present a prototype camera and flash that uses infra-red and ultra-violet light mostly outside the visible range to capture pictures in low-light conditions. This "dark" flash is at least two orders of magnitude dimmer than conventional flashes for a comparable exposure ...
Dilip Krishnan, Rob Fergus
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Electronic Flash Gastroscopic Color Photography
Gastroenterology, 1959Summary The first report of two years' experience in this country with the use of an instrument for simultaneous gastroscopic observation and electronic flash color photography is described. Some of the problems in gastroscopic color photography are discussed and a few illustrations of the work are presented.
I C, KEEVER, C J, BARBORKA
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ACM SIGGRAPH 2006 Research posters on - SIGGRAPH '06, 2006
We describe a new 3D scanning system which exploits the depth discontinuity information captured by the multi-flash camera proposed by [Raskar et al. 2004]. In contrast to existing differential and global shape-from-silhouette algorithms, our method can reconstruct the position and orientation of points located deep inside concavities.
Douglas Lanman +4 more
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We describe a new 3D scanning system which exploits the depth discontinuity information captured by the multi-flash camera proposed by [Raskar et al. 2004]. In contrast to existing differential and global shape-from-silhouette algorithms, our method can reconstruct the position and orientation of points located deep inside concavities.
Douglas Lanman +4 more
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OPEN-FLASH TECHNIQUE FOR DERMATOLOGIC PHOTOGRAPHY
Archives of Dermatology, 1953In recent years the busy dermatologist wishing to photograph clinical material in his office or clinic has often turned to a number of supposedly automatic and foolproof camera assemblies designed to eliminate the need for calculation of any kind on the part of the operator.
R, MORRIS, J T, CRISSEY
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Aircraft Engineering and Aerospace Technology, 1951
THE last decade has seen great progress in the development of the electronic flash tube and there are today few scientific or engineering projects which do not employ the tube as a high‐speed photographic light source to secure data which cannot otherwise be obtained.
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THE last decade has seen great progress in the development of the electronic flash tube and there are today few scientific or engineering projects which do not employ the tube as a high‐speed photographic light source to secure data which cannot otherwise be obtained.
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Standardized Clinical Photography
Ophthalmic Plastic & Reconstructive Surgery, 2012Medical photographic documentation is important for professional, research, and ethical concerns. This study analyzed the possible interference that the flash could cause on evaluation of lower eyelid cosmetic results. Standardized photographs with and without flash were taken of 10 patients with dermatochalasis.
Cariello, Angelino UNIFESP +4 more
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Double-Flash Microsecond Silhouette Photography
Review of Scientific Instruments, 1952Equipment is described to take double-exposure silhouette photographs of rapidly moving objects. Each exposure time is about ⅕ microsecond, and the time interval between flashes is adjustable. An eight-inch square Ektalite Fresnel lens is used as a field lens to focus the light from the illuminating spark into the camera lens; it is especially useful ...
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Digital Speckle X-Ray Flash Photography
AIP Conference Proceedings, 2002The new technique of digital speckle X‐ray flash photography (DSXFP), which has been successfully applied to polyester and cement specimens, is being further developed and used to study materials in ballistic situations in a way not previously possible.
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