The Fun Optical Illusion You Can Make With Your iPhone X

Peder Norrby, YouTube
Peder Norrby, YouTube

You can use the iPhone X’s powerful depth sensor for more than just face recognition. The technology also allows you to create wild optical illusions on your phone. The phone’s 3D camera allowed Swedish artist Peder Norrby to create a depth illusion that makes an image on the phone look 3D, as Co.Design reports.

The app Norrby created with ARKit face tracking, TheParallaxView, uses a technique called trompe l’oeil, a style you might have seen before in the form of pavement art. It uses hyperrealistic art to give the illusion that a 2D image is really 3D.

The eye tracking makes the image move as the camera does, making it look like you’re manipulating a 3D object, either one that recesses deep into the phone or pops out from the screen. As Mark Wilson explains on Co.Design, this face tracking “allows the screen to create not just one static 3D illusion, but dozens a second, tricking your mind into believing that there’s a whole other world behind the screen of your phone.”

It’s a monoscopic effect, according to Norrby, so the illusion works particularly well in video form, but in person, you’ll need to close one eye to make it work to the same degree.

You can see how it works in the video below. Norrby has submitted the app to Apple’s App Store, but it’s still pending approval. He’s also planning on submitting the source code for developers, which means that anyone could incorporate it into their apps—which we imagine could lead to some pretty amazing video games.

[h/t Co.Design]

The UK Wants to Use 'Noise Cameras' to Crack Down on Loud Cars and Bikes

iStock/Ales-A
iStock/Ales-A

Snarled traffic creates more than air pollution. Thanks to modified engines, mufflers, and exhaust systems on cars and motorcycles, congested roadways can become symphonies of belching and rattling. Now, the UK government is looking to do something about it.

According to the BBC, the Department for Transport is currently testing “acoustic cameras” that will measure the decibel levels of vehicles on public roads. If a microphone detects a vehicle producing an excessive amount of noise, a camera will photograph the source and the owner will be fined.

What defines excessive? That remains to be seen. The UK enacted a law in 2016 limiting new cars to no more than 74 decibels. It's primarily older cars and modified motorbikes that create noise disturbances and prompt complaints from people living nearby.

The trial equipment will also need to prove it can identify one vehicle's noise emissions from another's and single out cars from other possible sources of sound. If the trial results are promising, it's likely the "acoustic cameras" will be policing UK roads in the near future.

[h/t Jalopnik]

This Scented Smart Candle is Fire-Safe and Alexa-Friendly

LuDela
LuDela

Candlelight can do a lot for a room, setting a mood and signaling that it’s time to relax. But not everyone is comfortable with the idea of nursing a tiny flame and melting wax indoors. Technology has provided a solution in the form of the LuDela Perfect Pillar, a smart candle and decorative accent that takes the worry out of a flame-lit atmosphere.

The battery-powered artificial candle generates its flame with refillable liquid paraffin and offers a variety of different scents in the form of SunScent fragrance rings, which you can place on top of the candle to release the scent of your choice. The candle never dims or melts, and you can swap out its fragrance ring at any time to give your home a new scent.

The LuDela Perfect Pillar smart candle starter set
LuDela

The LuDela candle's smart features make it a safer choice than your typical accent candle, especially for homes with small kids or pets. For instance, it has a sensor inside that detects when the device is tilting; if it falls over, the flame is automatically extinguished. You can also turn the candle on and off or create a timed session using the included remote control or your Amazon Alexa. The remote control comes with a child-lock option to prevent little hands from turning the candle on without adult supervision.

You can find the LuDela Perfect Pillar on Amazon, where a starter set with a wax candle fixture, two liquid paraffin refills (which burn for approximately 20 hours each), two fragrance rings, and a remote control goes for $99. Subsequent refill capsules cost $10 per two-pack.

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