Internet

Facebook seeks to defend itself after scathing reports

Facebook on Tuesday fired back after a series of withering Wall Street Journal reports that the company failed to keep users safe, with the social media giant noting an increase in staff and spending on battling abuses.

Energy & Green Tech

Busting the problem of cloud cover

The downside to solar power is that it's not always sunny and so grid operators have to compensate for energy drops by bringing alternative generation sources online. New research in the International Journal of Powertrains, ...

Automotive

Activity detection inside a vehicle

Is the driver tired or even asleep? Cameras in the vehicle's interior can monitor this. Especially in the case of automated driving, interior cameras are important and prescribed by law. A new system developed by the Fraunhofer ...

Computer Sciences

A vision-based robotic system for 3D ultrasound imaging

Ultrasound imaging techniques have proved to be highly valuable tools for diagnosing a variety of health conditions, including peripheral artery disease (PAD). PAD, one of the most common diseases among the elderly, entails ...

Automotive

Using AI, cars can detect potholes in real time

The Korea Institute of Civil Engineering and Building Technology (KICT) has announced the development of an 'AI-based automatic pothole detection system'. The system is designed to be installed on the windshield of a vehicle ...

Energy & Green Tech

The hidden culprit killing lithium-metal batteries from the inside

For decades, scientists have tried to make reliable lithium-metal batteries. These high-performance storage cells hold 50% more energy than their prolific, lithium-ion cousins, but higher failure rates and safety problems ...

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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