latent image

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image

 [im´ahj]
a picture or concept with more or less likeness to an objective reality.
body image see body image.
digital image a depiction recorded electronically to allow viewing or transmission on a computer.
image distributor beam splitter.
disturbed body image a nursing diagnosis defined as confusion in the mental picture of one's personal self. See also body image.
fluoroscopic image a visual depiction on a fluoroscopy screen.
image intensifier a fluoroscope that is electronically enhanced to produce a brighter image; see also automatic brightness control, brightness gain, and vignetting.
latent image the invisible change in radiographic film that is caused by x-radiation or light and is made visible by development of the film.
magnification image direct radiographic enlargement requiring a fractional focus tube of 0.3 mm or less.
manifest image the change on an x-ray film that becomes visible when the latent image undergoes appropriate chemical processing.
mirror image
1. the image of light made visible by the reflecting surface of the cornea and lens when illuminated through the slit lamp.
2. an image with right and left relations reversed, as in the reflection of an object in a mirror.
motor image the organized cerebral model of the possible movements of the body.
phantom image an artifact seen in conventional linear tomography.

latent image

an invisible image produced in a film emulsion by x-rays or visible light that can be converted into a visible image by development.

la·tent im·age

(lā'tĕnt im'ăj)
The undeveloped image on an exposed x-ray film; it becomes visible after chemical processing.

la·tent im·age

(lā'tĕnt im'ăj)
The undeveloped image on an exposed x-ray film; it becomes visible after chemical processing.

image

the picture reproduced on the x-ray film or by other radioimaging methods such as ultrasonography.

image amplifier system
includes amplifer and viewer or television camera and tape player.
image display modes
see ultrasonography, A-mode, B-mode and M-mode.
image formation
exposure of the film to the x-ray beam ionizing radiation or to other radiant energy forms causes ionic changes in the silver bromide crystals in the film emulsion so that it acquires a silver atom. It is the deposition of reduced silver atoms in particles or zones that causes the black zones or foci on the film. The amount of silver deposited depends on the intensity of the initial radiation x-ray exposure.
image intensification
a technique used to increase the brightness of the image while maintaining its sharpness. Used particularly in fluoroscopy and viewing directly or indirectly through a television camera and monitor, cineradiography, videotape or split-film device.
latent image
the invisible picture on the film after it has been exposed to the x-ray beam. It requires exposure to a developer and fixer before the image is visible and permanent.
weak image
said of x-ray films which lack density due to underexposure, too brief period of development, insufficient developer or developer temperature too low.
References in periodicals archive ?
The DataOverwriteSecurity System (DOSS) destroys latent images stored on the internal HDD.
1-inch LL-T2015 LCD display achieves a high-speed 16ms response time for sharp delineation of quickly moving (or high data) images without latent images or ghosting that happens with smaller, less capable displays.
PDF encryption maintains the integrity of scanned PDFs during distribution with password protection and the DataOverwriteSecurity System (DOSS) automatically destroys latent images and data on the HDD.
We will be one of the first agencies to provide CA DOJ with the electronic hand records for statewide searching of latent images from the hands.
Reception, The Doshi Gallery at The State Museum of Pennsylvania, A Project of the Susquehanna Art Museum (SAM), highlighting the exhibit Latent Images, featuring approximately 36 works of art created by emerging and established artists.
Using Sharp's Advanced Super-V (ASV) liquid crystal technology, the LL-T2020 achieves a high-speed 25-millisecond response time for sharp delineation of quickly moving images without latent images or ghosting.