homehome Home chatchat Notifications


Picture perfect: quick, efficient chip eliminates common flaws in amateur photographs

Your smartphone amateur photos could be instantly converted into professional-looking pictures at the touch of a button, thanks to a chip developed by MIT researchers. The chip, built by a team at MIT’s Microsystems Technology Laboratory can perform a number of tasks, including creating a more realistic environment or enhanced lighting in a shot without […]

Mihai Andrei
February 19, 2013 @ 7:28 am

share Share

Your smartphone amateur photos could be instantly converted into professional-looking pictures at the touch of a button, thanks to a chip developed by MIT researchers.

The chip, built by a team at MIT’s Microsystems Technology Laboratory can perform a number of tasks, including creating a more realistic environment or enhanced lighting in a shot without destroying the scene ambience; the technology could be easily implemented not only in cameras, but also in smartphones or tablets, making it easier for everyone to take that great pic you’ve always wanted.

photography

Usually, computational photography software applications are installed into cameras and smartphones; these systems consume lots of processing power, taking a longer time to run and requiring a considerable amount of knowledge from the user. But the chip developed by Rahul Rithe, a graduate student in MIT’s Department of Electrical Engineering and Computer Science takes an entirely different approach.

“We wanted to build a single chip that could perform multiple operations, consume significantly less power compared to doing the same job in software, and do it all in real time,” Rithe says.

Perhaps the most such notable task is known as High Dynamic Range (HDR) imaging. HDR is designed to compensate for limitations on the range of brightness that can be recorded by existing digital cameras, to capture photos as vivid as we see them with our own eyes. In order to do this, the camera takes three “low dynamic range” pictures: a normal one, an overexposed (too much light) and an underexposed (too little light). It then merges all of them, creating a single photo that features the entire range of brightness in the scene, Rithe says.

Software systems typically take a few seconds to perform this operation, while the chip, even in its initial stage, can do it in much less than a second; this makes it fast enough to even apply it to video, something previously impossible, while also requiring much less CPU power.

“Typically when taking pictures in a low-light situation, if we don’t use flash on the camera we get images that are pretty dark and noisy, and if we do use the flash we get bright images but with harsh lighting, and the ambience created by the natural lighting in the room is lost,” Rithe says.

The chip also removes unwanted noise, blurring out any undesired pixel with its surrounding neighbors, so that it matches those around it. This image is also done with traditional filters, but also blurred pixels at the edges of object, resulting in a less detailed image. The power savings offered by the chip are particularly impressive, says Matt Uyttendaele, also of Microsoft Research:

“All in all [it is] a nicely crafted component that can bring computational photography applications onto more energy-starved devices,” he says.

Source

share Share

Futuristic Contact Lens Delivers Medication Directly to Your Eye

The next time you take some medicine, it could be through your lens.

Researchers build ChatGPT-powered robot arm that costs $120

ChatGPT is leaking into the physical world.

This smart sensor can detect health symptoms without cloud computing

Sensor patches could transform healthcare and health monitoring.

This Polish radio station fired all its journalists and replaced them with AI hosts -- and people are furious

"It is a dangerous precedent that hits us all," said fired journalists.

A timeline chart of SciFi predictions that eventually became true

I pride myself on being a science fiction buff. Asimov, Clark, Wells, Jules Verne — there’s a reason why we’ve all come to love these classics. What makes people so fond of science fiction, though? One may argue that it’s these novel’s uncanny ability to dwell the human mind and foresee things that are yet […]

Your spreadsheets probably suck — 94% of business spreadsheets have errors in them

Here's one productivity hack no one talks about: check your spreadsheets.

You've heard of Doomscrolling, but have you ever tried Hopescrolling?

Algorithms have been manipulating you for a while. It's time to manipulate them back to find positivity and happiness.

This invisible mask removes 99.8% of germs from the air

Respiratory diseases are on the rise among industrial workers, and regular masks just don't cut it.

A 1901 Map of the Undersea Cables that Shaped Global Communication

The Atlantic really looks like a pond, doesn't it?

Sailors rescued from remote island after writing big "HELP" on the beach

It's not just for movies. Writing 'HELP' can really help.