Noise And Image Degrading Effects In Image Intensification

Herbert K. Pollehn

doi:10.1117/12.953660

1 June 1972 Noise And Image Degrading Effects In Image Intensification

Herbert K. Pollehn

Proceedings Volume 0035, Application of Optical Instrumentation in Medicine I; (1972) https://doi.org/10.1117/12.953660
Event: Application of Optical Instrumentation in Medicine, 1972, Chicago, United States

Abstract

Over the past years image intensification has come into widespread use to increase detection and recognition capabilities for objects of, or in, radiation of low intensity. The type of radiation, for which image intensification can be used, ranges from x-rays into the near infrared region. The principle of operation is explained through Figure 1. (See also Reference 1.) Radiation from the scene is imaged onto the first stage, where a percentage of the radiation is converted into electrons, forming an electron image. For x-ray intensifiers this stage consists of a phosphor screen and a cathode, whereas for other types of radiation only a cathode is needed. By the intensifier stage, the electron image is transferred to the output, where the electrons--in most cases--are used to generate radiation in a suitable wavelength region and of sufficient intensity. Sufficient intensity is obtained through a gain mechanism.

Citation Download Citation

Herbert K. Pollehn "Noise And Image Degrading Effects In Image Intensification", Proc. SPIE 0035, Application of Optical Instrumentation in Medicine I, (1 June 1972); https://doi.org/10.1117/12.953660

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available