Results 261 to 270 of about 6,221,198 (343)

Image Intensifier Cine-Angiography

1972
Publisher Summary This chapter examines the various aspects of the image intensifier cine-angiography. The chapter describes a system for human cine-angiography in which the illumination of the retina of the patient is tolerable and an image intensifier is used to increase the brightness of the fundus image to a level suitable for cine-photography ...
F.C. Delori, R.W. Airey, C.T. Dollery, E.M. Kohner, C.J. Bulpitt   +4 more
openaire   +1 more source

Evaluation Of Image Intensifiers

Optical Engineering, 1982
The performance of image intensifiers is rated according to their capability of detecting, recognizing, and identifying objects at low light levels. The most important characteristics limiting these capabilities are noise and imaging parameters. Noise parameters are normally expressed in signal-to-noise ratios, whereas imaging parameters are described ...
openaire   +1 more source

Image intensifier distortion influences a surgeon’s ability to aim guidewires during orthopaedic procedures

Skeletal Radiology, 2019
T. Ward, B. Schwarz, B. Le, Geoffrey C. S. Smith, R. Molnar, Paul N. Smith   +5 more
semanticscholar   +1 more source

Image intensifiers

Contemporary Physics, 1976
C. I. Coleman, A. Boksenberg
openaire   +1 more source

Super Inverter Image Intensifier

1986
Publisher Summary This chapter introduces the super inverter, and its performance in a night vision system is compared with that of other image intensifier tubes, such as the first-generation (Gen.I) three-stage tube, the second-generation (Gen.II) wafer tube, and the Gen.II inverter tube.
L.K. Van Geest, K.W.J. Stoop
openaire   +1 more source

Comparison of image quality and radiation dose between an image-intensifier system and a newer-generation flat-panel detector system — technical phantom measurements and evaluation of clinical imaging in children

Pediatric Radiology, 2016
M. Weis, C. Hagelstein, T. Diehm, Stefan O. Schoenberg, K. Wolfgang Neff   +4 more
semanticscholar   +1 more source

Third-Generation Image Intensifier

1986
Publisher Summary Third-generation image intensifiers are a double proximity image tube with a GaAs photocathode. Therefore, the major difference between second- and third-generation tubes lies in the photocathode. The discovery of the negative electron affinity photocathode in 1965 was the starting point of a new family of photoemitters.
E. Roaux, J.C. Richard, C. Piaget
openaire   +1 more source

A Cascade Image Intensifier

1966
Publisher Summary This chapter describes various methods and techniques that developed to achieve that degree of excellence, as regards gain, resolution, and background and image quality that is necessary if the tube is to be useful in many important applications.
J.D. McGee, R.W. Airey, M. Aslam, J.R. Powell, C.E. Catchpole   +4 more
openaire   +1 more source

Research on the gain saturation effect of an image intensifier based on microchannel plate

, 2017
Yuntao Xie, Zhang Yujun, Wang Xi, Xiaoquan Sun   +3 more
semanticscholar   +1 more source

Characterization of domestic and foreign image intensifier tubes

Defense, Security, and Sensing, 2013
E. Bender, M. Wood, Daniel J. Hosek, Steve D. Hart   +3 more
semanticscholar   +1 more source