Consumer & Gadgets

Before you buy, consider privacy please

This weekend, many folks will be poring over retail circulars, online ads and promotions, doing their research to get ahead on the best deals for Black Friday gifts.

Business

Watch this: China surveillance tech seeks to go global

Chinese firms are omnipresent at a Paris homeland security trade show, capitalising on their vast experience in developing surveillance systems for Beijing to conquer the global market despite concerns the technology has ...

Security

Team saw how an attacker could hijack Android camera for spyfest

Android camera security threat, disclosed and since addressed, had spy vulnerabilities. These were fixed by Google and Samsung with a patch rolled out for Pixel and Samsung devices The recent headlines surrounding the flaw ...

Security

Facial recognition makes subtle advance in Britain

The experiment was conducted discreetly. Between 2016 and 2018, two surveillance cameras were installed in the Kings Cross area of London to analyse and track passers-by using facial recognition technology.

Telecom

How hackers could use Wi-Fi to track you inside your home

As connected devices such as voice assistants, security cameras, and smart appliances grow in popularity, the homes and offices where they are installed become increasingly filled with a dense web of Wi-Fi signals.

Machine learning & AI

This AI birdwatcher lets you 'see' through the eyes of a machine

It can take years of birdwatching experience to tell one species from the next. But using an artificial intelligence technique called deep learning, Duke University researchers have trained a computer to identify up to 200 ...

Hardware

OmniVision announces world record for smallest image sensor

OmniVision, a developer of advanced digital imaging solutions, has announced that it has won a place in the Guinness Book of World Records with the development of its OV6948 image sensor—it now holds the record for the ...

Business

Chinese snooping tech spreads to nations vulnerable to abuse

When hundreds of video cameras with the power to identify and track individuals started appearing in the streets of Belgrade as part of a major surveillance project, some protesters began having second thoughts about joining ...

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Camera

A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.

Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.

A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.

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