virtual image

Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to virtual image: Real image

vir·tu·al im·age

an erect image formed by projection of divergent rays from an optical system.
Synonym(s): direct image
Farlex Partner Medical Dictionary © Farlex 2012


(im'ij) [Fr. image fr. L. imago, copy, likeness]
1. A mental picture representing a real object.
2. A more or less accurate likeness of a thing or person.
3. A picture of an object as produced by a lens or mirror.
4. In radiology, a representation of structures within the body as a result of examination by various physical phenomena (e.g., x-rays, gamma rays, sound, or radio).

body image

1. The subjective image or picture people have of their physical appearance based on their own observations and the reaction of others.
2. The conscious and unconscious perception of one's body at any particular time.

direct image

An image produced from radiation without secondary image receptors. Synonym: virtual image

double image

A perceived image that occurs in strabismus when the visual axes of the eyes are not directed toward the same object. Synonym: false image
See: diplopia

false image

Double image.

inverted image

An image that is turned upside down.

latent image

1. An unprocessed image physically present within an image receptor but not yet visible.
2. In radiology, the image within the emulsion of an exposed radiograph that is invisible because it has not been developed.

mirror image

An image of an object in which right and left are reversed. The term is also used to indicate the similarity of chemical substances or persons with quite similar personalities and looks (e.g., identical twins).

Purkinje-Sanson images

See: Purkinje, Johannes E. von

radiographic image


real image

The image formed by convergence of rays of light from an object.

virtual image

Direct image.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
By doing this, students can be aware that the formation of the virtual image depends on the viewer's position.
Where: [V.sub.x,y] and [V.sub.E] are the correction vectors of the observations based on corresponding points and lines, respectively, [(d[[phi].sup.v.sub.i], d[[omega].sup.v.sub.i], d[[kappa].sup.v.sub.i], d[[phi].sup.v.sub.j], d[[omega].sup.v.sub.j], d[[kappa].sup.v.sub.j]).sup.T] the correction vectors of angular parameters with respect to virtual image, [L.sub.x,y] and [L.sub.E] the constant items calculated by the approximate values of the unknowns; [A.sub.1] and [A.sub.2] the designed matrix of the correction vectors.
The virtual image covers the road scene to a width of four meters and a height of one meter.
at 13-14 (Stahl, J., concurring) (questioning whether child pornographers access similar advanced technological resources as movie studios); see also Bernstein, supra note 19, at 408-10 (discussing imaging technology history); Kreston, supra note 23, at 60-62 (identifying technical challenges creating virtual images); supra note 25 (collecting cases).
Whenever the observer wanted to see the boards for the standard separation, he or she saw their virtual images in mirrors.
As such, other ways must be found to defeat the digital defense of the virtual image.
The system projects a virtual image of important information such as speed directly on to the windscreen in the driver's line of sight.
Novint Technologies, Albuquerque, is developing "e-Touch" software that lets parents touch a virtual image of their baby.
VIRTUAL IMAGE: Creative IT officer Philip Tutty is displayed on the computer monitor while media resource assistant Matthew Taylor looks on.
The Secret of the Universe ([pound]24.95) is the latest addition to Virtual Image's library of tours of art and mathematics on CD-ROM.
This system allows us to quickly generate a virtual image of any interior or exterior view of the home.

Full browser ?