News tagged with images

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A closer look at the blood-brain barrier

(Medical Xpress)—Thousands of people today have various kinds of stimulators placed deep in their brains in the hope of curing their ills. Many others require systems of tubes, catheters, and shunts penetrating ...

Oct 07, 2014
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A safer approach for diagnostic medical imaging

Medical imaging is at the forefront of diagnostics today, with imaging techniques like MRI (magnetic resonance imaging), CT (computerized tomography), scanning, and NMR (nuclear magnetic resonance) increasing steeply over ...

Sep 29, 2014
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Women have greater atheroma regression with statins

(HealthDay)—For patients with coronary atheroma, high-intensity statin treatment is associated with greater regression in women than men, according to a study published online Sept. 17 in JACC: Cardiovascular Im ...

Oct 08, 2014
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Social media puts body-conscious girls off sport

A growing number of teenage girls are shying away from sports in high school because Facebook and Instagram are making them self-conscious about their bodies, a new Flinders University study reveals.

Oct 07, 2014
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What to know if breast cancer runs in your family

Breast cancer is the second leading cause of death from cancer in women. A woman's lifetime risk of developing breast cancer is 12 percent (1 of every 8 women). Breast cancer risk is higher among women whose close blood relatives ...

Oct 07, 2014
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Researchers use infrared imaging to detect lung tumors

Penn Medicine researchers are now able to identify cancerous tumors of the lung using infrared imaging that makes hidden tumors glow during surgery. In a pilot study, researchers performed the first in-human demonstration ...

Sep 25, 2014
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Image

An image (from Latin imago) is an artifact, or has to do with a two-dimensional (a picture), that has a similar appearance to some subject—usually a physical object or a person.

Images may be two-dimensional, such as a photograph, screen display, and as well as a three-dimensional, such as a statue. They may be captured by optical devices—such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water surfaces.

The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or an abstract painting. In this wider sense, images can also be rendered manually, such as by drawing, painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.

A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or digital processes.

A mental image exists in an individual's mind: something one remembers or imagines. The subject of an image need not be real; it may be an abstract concept, such as a graph, function, or "imaginary" entity. For example, Sigmund Freud claimed to have dreamt purely in aural-images of dialogues. The development of synthetic acoustic technologies and the creation of sound art have led to a consideration of the possibilities of a sound-image made up of irreducible phonic substance beyond linguistic or musicological analysis.

This text uses material from Wikipedia licensed under CC BY-SA