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27
Apr

PhotoScan update lets you ditch glare when digitizing old photos sans scanner


Why it matters to you

Snapping a smartphone photo of a photo is a quick way to digitize old photos without a scanner, but one of the method’s biggest issues is getting a fix.

Snapping a photo of a photo is a popular way to skip the scanner to digitize old photos, except for one thing: Glare. Last week, Google released an update to the PhotoScan app to fix just that.

The app uses several pictures of the same image and combines them to remove the glare automatically. By holding the smartphone at slightly different angles, the glare moves around the photos, making it possible to eventually capture all the details in the photo and remove the glare.

“The challenge is that the images need to be aligned very accurately in order to combine them properly, and this processing needs to run very quickly on the phone to provide a near instant experience,” Google researchers wrote.

To get the images to align accurately with minimal processing time, the software engineers took the advanced “obstruction-free photography” technique and altered it to work with the smaller processing power of a mobile device. The first picture works as the reference frame, the developers said, or the angle that you want the final image to appear at. Then, the program asks the user to take four more photos. The program then identifies similar points between the images to map or align the subsequent images with the first frame. Pixel mapping helps correct any irregularities from snapping the photo at slightly different angles.

To lighten up the program for use on a smartphone instead of a desktop computer, the photo is divided into a grid and each grid point — instead of each pixel — is used to map out the differences between photos, giving the smartphone a much smaller task to handle in order to churn out quick results.

Once the photos are aligned, the system takes the darkest color value from all the overlapping images, which eliminates the bright glare.

Glare from light sources often renders bright spots even on glossy photos outside a frame, though Google says the feature can also be used to eliminate the glare from leaving the photo inside the glossy sleeve of a photo album.

The new glare-elimination technique is part of the latest version of PhotoScan, available as a free download on both Android and iOS platforms.




27
Apr

Machine learning helps researchers predict cardiovascular disease


Why it matters to you

Machine learning’s capacity to trawl through masses of data could potentially have a major impact on the future of medical care, specifically in terms of prevention.

Researchers at Nottingham University have demonstrated that machine learning algorithms could be better at predicting cardiovascular risk than the medical models that are currently in place. Four algorithms were put through their paces during the study; random forest, logistic regression, gradient boosting, and neural networks.

A team of primary care researchers and computer scientists compared these algorithms with the standard guidelines for cardiovascular disease risk assessment offered by the American College of Cardiology. A data set comprising 378,256 patients from almost 700 medical practices in the United Kingdom was used to facilitate the investigation.

All four algorithms were found to improve overall prediction accuracy compared to established risk prediction methodology based on a metric known as the ‘Area Under the Receiver Operating Characteristic curve,’ according to a report from Phys.org. The level of improvement varied from 1.7 to 3.6 percent.

Neural networks was found to be the highest achieving algorithm in the study, correctly predicting 7.6 percent more patients who would eventually develop cardiovascular disease.

“Cardiovascular disease is the leading cause of illness and death worldwide,” said Dr. Stephen Weng, of Nottingham University’s National Institute for Health Research School for Primary Care Research. “Our study shows that artificial intelligence could significantly help in the fight against it by improving the number of patients accurately identified as being at high risk and allowing for early intervention by doctors to prevent serious events like cardiac arrest and stroke.”

Based on the results of the study, the team is confident that artificial intelligence and machine learning techniques have a key role to play in fine-tuning risk management strategies for individual patients.

The researchers say that there’s more to be learned about the potential predictive accuracy of machine learning techniques, with other large clinical datasets, different population groups, and different diseases all providing avenues to expand upon the study.




27
Apr

Machine learning helps researchers predict cardiovascular disease


Why it matters to you

Machine learning’s capacity to trawl through masses of data could potentially have a major impact on the future of medical care, specifically in terms of prevention.

Researchers at Nottingham University have demonstrated that machine learning algorithms could be better at predicting cardiovascular risk than the medical models that are currently in place. Four algorithms were put through their paces during the study; random forest, logistic regression, gradient boosting, and neural networks.

A team of primary care researchers and computer scientists compared these algorithms with the standard guidelines for cardiovascular disease risk assessment offered by the American College of Cardiology. A data set comprising 378,256 patients from almost 700 medical practices in the United Kingdom was used to facilitate the investigation.

All four algorithms were found to improve overall prediction accuracy compared to established risk prediction methodology based on a metric known as the ‘Area Under the Receiver Operating Characteristic curve,’ according to a report from Phys.org. The level of improvement varied from 1.7 to 3.6 percent.

Neural networks was found to be the highest achieving algorithm in the study, correctly predicting 7.6 percent more patients who would eventually develop cardiovascular disease.

“Cardiovascular disease is the leading cause of illness and death worldwide,” said Dr. Stephen Weng, of Nottingham University’s National Institute for Health Research School for Primary Care Research. “Our study shows that artificial intelligence could significantly help in the fight against it by improving the number of patients accurately identified as being at high risk and allowing for early intervention by doctors to prevent serious events like cardiac arrest and stroke.”

Based on the results of the study, the team is confident that artificial intelligence and machine learning techniques have a key role to play in fine-tuning risk management strategies for individual patients.

The researchers say that there’s more to be learned about the potential predictive accuracy of machine learning techniques, with other large clinical datasets, different population groups, and different diseases all providing avenues to expand upon the study.




27
Apr

Google Assistant can now teach you how to make dinner, other daily tasks


Why it matters to you

Wondering what to cook for dinner? Google Assistant can find a recipe and walk you through the steps.

The Google Assistant, the smart digital helper, can already juggle a bunch of hands-free tasks for you. It will supply movie showtimes, place a restaurant reservation, summon a car, and even place orders from nearby stores on command. And it hasn’t stopped improving. This week, it is gaining integrations that will boost its cooking, booking, nature, and car knowledge.

On Wednesday, Google announced recipe skills for the Google Assistant and Google Home, the artificial intelligence-powered smart home speaker. Before, both could answer basic questions about substitutions, measurements, and conversions before, but now, they go about it a little more conversationally. You can ask about recipes by yelling commands like, “OK Google, let’s make a croissant,” and if you’re on a smartphone or tablet, you save a recipe for later by tapping, “Send to Google Home.” When you shout “OK Google, start cooking” at your Google Home, it will start walking you through the steps.

If you accidentally miss something, it’s no big deal. You can ask the Google Assistant or Google Home to repeat it by saying, “OK Google, repeat.” If it is a step earlier in the recipe, you can say something like, “OK Google, what is step two?”

Google’s said it is sourcing more than 5 million recipes from Bon Appetit, The New York Times, and more, and that the new recipe skill will roll out to the Google Assistant and Google Home in the coming weeks.

Recipes are not the only new thing.

Earlier this week, Google Home and the Google Assistant gained 25 new actions — or third-party voice apps — including one that lets you listen to hundreds of bird songs, a voice-activated virtual concierge, and vehicle controls.

Mercedes and Hyundai recently launched actions that tap into their respective car platforms. The Mercedes Me action can unlock the car door, take navigation directions, and start the car engine.

For naturalists and nature lovers, there is the Bird Song Skill by Thomptronics and Earth Day. Bird Song Skills can play more than 200 bird sounds and test your knowledge with the song quiz. And the Earth Day action can supply resources on issues like deforestation, climate change, and biodiversity.

The Atlanta rail action provides local bus and train arrival times. The Virtual Concierge, a product of The Lodge in Palmer Lake, Washington, tells vacation rental and Airbnb guests about house rules and answers questions about things like Wi-Fi passwords, nearby restaurants, and activities. And the Farmer’s Almanac tells you things like the number of days until summer and the best time to destroy pests and weeds.

Google said that more than 175 actions have been added to Google Home since the launch of Actions on the Google Assistant platform last December. And new skills and actions follow the debut of multi-account support. Last week, the Google Assistant on Home devices gained support multiple accounts and the ability to differentiate between up to six voices.




27
Apr

Intuitive point-and-click interface lets students control robotic arm


Why it matters to you

Making robots more user friendly takes us one step closer to them being better integrated into everyday life.

The Georgia Institute of Technology has developed a new, intuitive method for controlling a robotic arm: Point and click. While not exactly like the adventure games of old, it definitely draws its inspiration from the ability to highlight objects and perform a small selection of preselected tasks.

Although typical robotic arm controls offer a wide variety of options thanks to six degrees of motion, that can be cumbersome for people just getting to grips with the technology. What the new solution looks to do, is make it possible for novice robotics owners to utilize the technology in a manner that has a much shorter and shallower difficulty curve.

“Roboticists design machines for specific tasks, then often turn them over to people who know less about how to control them,” said David Kent, a Georgia Tech robotics doctoral student who headed up the project. “Most people would have a hard time turning virtual dials if they needed a robot to grab their medicine. But pointing and clicking on the bottle? That’s much easier.”

While simpler on the surface, such a system is a lot more complicated under the hood. Instead of displaying 3D information to the user, they simply offer a video feed. However, the arm itself needs to understand the 3D environment and know that when a person clicks on an object in the background and tells it to pick it up, it must differentiate that from objects in the foreground. It needs to know the distance that it must travel and the correct angle to “attack” it from.

The algorithm that the research team has come up with is capable of analyzing the geometry of objects, even making assumptions about them when the camera can’t see their entirety. This is something that the human brain does automatically, the researchers explained, but it was a challenge to make the robotic arm infer that detail for itself.

Although this technique of control does bequeath much of the responsibility of control to the algorithm and the arm, the system is actually less error prone than giving humans full control. In a trial, researchers found the point and click method delivered only one mistake per task, whereas the more traditional six degrees of motion control method had as many as four per task.

By giving users control over what to grab and how to do so when the arm is in the right position, researchers hope that robotic technology could more easily be adopted by those without training, or with limited mobility themselves, like the elderly. There are also potential applications for such robotic arms in sensitive settings, like search and rescue operations or in space travel.




27
Apr

Moshi’s Ionsuit iPhone 7 battery case slims down when you’re done charging


Moshi just unveiled their latest battery case for the iPhone 7, the Ionsuit — an updated version of their two-piece iGlaze Ion case for the iPhone 6, which we reviewed last year. As with the Ion, the Ionsuit has a slim case component, Moshi’s black iGlaze case, and a detachable slide-on 3020 mAh battery.

While the Ionsuit only comes in black this time around, it’s compatible with all of Moshi’s iGlaze iPhone 7 cases, which come in 4 other dual-tone colors. Sadly, compatibility with the more luxe Napa cases, a feature of the iPhone 6 Ion, has been dropped.

The iGlaze slim case stands up well on its own when not using the Ionsuit’s battery. It has a shock-absorbent inner TPU layer and durable hardshell polycarbonate frame. The back of the included shell case is smooth with a soft-touch matte finish, which feels great but tends to show fingerprints and smudges. The other colored iGlaze cases have a glossier exterior without the soft-touch coating, and feel more slippery than the black one. The back of the battery pack is textured, with a brushed finish for additional traction — it helps provide a better grip for your hand.

Popping the phone in and out of the slim case is quick and easy, and the the fit is snug and secure. It’s tough, passing military-spec certified drop tests that can protect your phone from everyday bumps and drops from a few feet. The front of the case has a low profile with just enough bezel around the screen to keep it off surfaces to avoid scratches. The camera cutout doesn’t impact flash or photo quality, and the cutout prominently displays the Apple logo. However, it leaves that portion of your phone exposed, so a back protector might not be a bad idea.

Access to the exterior buttons is preserved, though the mute switch cutout is a bit tight for big fingers, and the button covers require somewhat firmer pressing than normal. The Lightning port cutout is generous and fits most third-party accessory connectors, as well as the original Apple cable. We found microphone and speaker performance clear and unobstructed during calls and music playback.

When using the battery, it’ll feel like you’re carrying two phones stacked together, but the case with the battery surprisingly weighs a little less than the iPhone 7. The single button operation on the back of the battery pack makes charging easy with a single click. It supports 2.1 amp fast charging to top up your phone battery in less time, and the LED indicator flashes up to 4 times, each representing 25 percent of battery capacity remaining in the power bank. A fully charged battery pack supplies a little over 1 full charge for your iPhone, but the case charges via microUSB rather than Lightning. Don’t worry about carrying around separate cables, because the included microUSB cable can charge your phone when it’s docked in the battery pack.

We like the Ionsuit as a power bank because it eliminates the need to carry around cables or hunt for outlets while you’re out and about, and the flexibility of converting from a battery case to a protective slim case makes it a great every day case and travel companion too. You can pick one up for $100, and if you want to swap in a different color iGlaze case, they go for $30.




27
Apr

Id Software’s CTO promotes the benefits of using AMD’s new Ryzen CPUs


Why it matters to you

We know that Id Tech 7 will be fully optimized for AMD’s new Ryzen desktop processors and the company’s upcoming Radeon RX Vega cards.

AMD published a new video on YouTube featuring Id Software Chief Technology Officer Robert Duffy. He said that AMD supplied the Zenimax-owned crew with PCs powered by the new Ryzen 7 desktop processors, and the 2016 version of Doom ran “fantastic” at 1,920 x 1,080 right out of the box.

But what about a 3,840 x 2,160 resolution? Duffy said the team is currently testing 4K with the Id Tech 6 engine running on Ryzen 7 now and plans to start 8K testing in the near future (7,680 x 4,320). However, he can safely say that any PC game, whether it is based on Id Tech 6 or not, will benefit from the additional CPU headroom provided by the Ryzen processor platform.

As a refresher, AMD now sells two groups of Ryzen-branded processors based on its built-from-scratch “Zen” processor design: Ryzen 7 and Ryzen 5. The Ryzen 7 group consists of three chips ranging in base clock speeds between 3.0GHz and 3.6GHz. They target the enthusiast market whereas the Ryzen 5 processors focus on the mainstream high-quality PC gaming market.

“If you take into account how many people are streaming their gameplay these days, that pushing a lot of bandwidth out the pipe, that’s doing live video encoding,” Duffy said. “And you think about the additional cores and capabilities Ryzen has, the games are still going to run really fast even if they’re doing all of this other stuff on their PC at the same time.”

Yep, there are a lot of cores in most of the new Ryzen processors, and here they are:

Ryzen 7
1800

Ryzen 7
1700X

Ryzen 7
1700

Ryzen 5
1600X

Ryzen 5
1600

Ryzen 5
1500X

Ryzen 5
1400

Cores:
8
8
8
6
6
4
4
Threads:
16
16
16
12
12
8
8
Base:
3.6GHz
3.4GHz
3.0GHz
3.6GHz
3.2GHz
3.5GHz
3.2GHz
Max:
4.0GHz
3.8GHz
3.7GHz
4.0GHz
3.6GHz
3.7GHz
3.4GHz
Price:
$460
$370
$318
$249
$219
$189
$167

Duffy says that Ryzen has a “super-attractive” price point, and he’s spot-on with the Ryzen 5 chips. Get into six-core territory, and customers have a starting price of $219, which is not shabby at all. Even still, the eight-core 1700 chip has a very attractive price point, which only gets higher as AMD cranks up the base and turbo speeds of each core. As demonstrated by AMD over the last six months, an Intel processor that is comparable to the Ryzen 7 1800 is double the price.

And that was/is a big selling point for AMD: Powerful performance at half the cost. According to Duffy, those additional cores and threads will enable developers to cram in more frames per second, more artificial intelligence, more actions in the game space, more simulations, and so on. Ryzen, he says, will bring better gaming immersion to more people.

Of course, the team is currently working on Id Tech 7, which will be optimized for Ryzen processors right out of the box. The new engine is “far more parallel” than Id Tech 6, he says, and will fully consume all the processing power Ryzen can dish out. Quake Champions will take advantage of Ryzen 7 and the upcoming Radeon RX Vega cards too.




27
Apr

Aukey KM-G3 review


aukey-km-g3-product-90x90-c.jpg

Research Center:
Aukey KM-G3

Aukey isn’t quite as well-known in the PC gaming industry as Razer, Logitech, Corsair, and Roccat. In fact, scan through the company’s device portfolio and you’ll find camera lenses, car audio kits, charging stations, drones, and even VR headsets. Dip even further into the company’s “Gaming Gear” section and you’ll see laptop coolers, wireless controllers, gaming mice, and just about anything else you could want.

The company is obviously pushing its way into the PC gaming industry to become a reliable brand name like those we’ve come to know and love over the years. However, right now, it’s mechanical keyboard portfolio is seemingly targeting customers who buy mostly on price.

A scan on Amazon shows a price range between $25 and $65, and the company’s new KM-G3 sits on the higher price tier. But in spite of budget pricing, Aukey’s KM-G3 mechanical keyboard is a great full-size 104-key peripheral that’s shouldn’t be overlooked.

A mechanical keyboard aliens could love

The KM-G3 appears to be a rebrand of the Motospeed Inflictor CK104 mechanical keyboard, which is sold in Silver, Red, and Rose Gold flavors. The CK104 also comes packed with Outemu Blue or Outemu Red switches, depending on the model. The Aukey KM-G3 version is only sold in Silver, and doesn’t provide an Outemu Red switch option. We will talk more about these switches shortly.

Aukey KM-G3
Bill Roberson/Digital Trends

Aukey picked a silver faceplate for the KM-G3 while the key caps, the outside lining, and the bottom panel are all black. This makes for an interesting design when it comes to illumination, as the metallic finish helps scatter the colorful backlighting between the keys. This color scheme also provides a futuristic look unlike other gaming keyboards on the market.

Aukey has kept size to a minimum, providing just enough physical space to serve as a foundation for the keys. Users won’t see a palm rest, and the surrounding bezel measures more than one eighth of an inch on all sides. The keyboard measures 4.6 inches from front to back, 17 inches wide, 0.5 inches in height at the front (bottom to faceplate) and 0.75 inches in height on the back.

It’s attractive and affordable, but there’s nothing cheap about its quality.

This minimalistic design means more backlight illumination. Save for the key caps, the switches are not covered by the keyboard chassis; the switches aren’t embedded in the keyboard chassis itself. Instead, the LEDs shine through the clear switches and pour out across the silver faceplate and around the key caps. For those looking for a dazzling keyboard to illuminate their desktop, this should be a great candidate.

On the bottom, the keyboard sports two rubber pads towards the front and two foldable “legs” in the back measuring a half-inch tall. Four indicators reside above the number pad area that blend in with the current color scheme and effect when not in use. Otherwise, each indicator lights up in an “alien” blue color when the user activates number lock, scroll lock, caps lock, and/or the Windows key lock.

What exactly is an Outemu switch anyway?

The Outemu Blue RGB switch used by Aukey is a low-cost clone of the Cherry MX Blue RGB switch. That means users can easily remove the current caps and replace them with an entirely new Cherry MX-compatible set. Some of the cap sets you can find on Amazon include backlit golden metal, lime green, and a rainbow gradient.

Here’s a look at the hardware comparison between the Outemu and Cherry MX models:

Outemu Blue RGB
Cherry MX Blue RGB
Total travel:
4mm
4mm (+/- 0.5mm)
Actuation travel:
2mm (+/- 0.3mm)
2.2mm (+/- 0.6mm)
Actuation Force:
49cN (+/-5cN)
50cN (+/- 15cN)
Tactile travel:
1.80mm (+/- 0.3mm)
1.80mm (+/- 0.3mm) (?)
Minimum trigger force:
29.4cN
25cN
Total travel force:
58.8cF (+/- 5cN)
60cN (+/- 15cN)
Lifetime:
50 million actuations
50 million actuations

As the chart shows, there’s a fine line between the Outemu and Cherry MX switches. Outemu switches are manufactured by China-based Dongguan Gaote Electronic Co, Ltd, and serve as a cheaper alternative to Cherry MX. A 10-pack of Outemu Blue RGB switches sells for around $8, whereas a 10-pack of Cherry MX Blue RGB switches sells for around $10.

Aukey KM-G3 Compared To

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Steelseries Apex M500

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Razer Turret

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Razer Blackwidow X Chroma

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Razer Deathstalker Chroma

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Logitech Harmony Smart Keyboard…

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Logitech K400

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Microsoft Wireless Desktop 5000

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Cooler Master Storm QuickFire

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Cherry JK-0300

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Logitech K750 Wireless Solar…

Generally, mechanical keyboard switch features are defined by a specific color. A “blue” switch means that it requires 60cN of force to actuate the keystroke, and typically provides a distinct, audible “clicky” tactile bump on the way down. They’re more in tune with the standard mechanical keyboard switch for general typing, as opposed to “red” switches targeting PC gamers. “Red” models feel smoother and faster, requiring 45cN of force to actuate the keystroke. They’re also not quite as noisy.

So, why not use Red switches in this keyboard? Good question. A pack of 10 is seemingly no more expensive than a pack of Blue. Aukey currently sells five “KM-G” mechanical keyboards, and the company seemingly relies specifically on Blue and Brown switches:

Keyboard Type
Switch Type
Illumination
KM-G3
104 keys
Blue
RGB
KM-G4
104 keys
Brown
RGB
KM-G5
104 keys
Brown
RGB
KM-G6
104 keys
Blue
6 colors only
KM-G7
87 keys
Blue
6 colors only

While the Red switches might be more appropriate, there’s an audience for “clicky” keys in the PC gaming community, and these Blue switches fit the bill.  Their responsiveness isn’t quite as sensitive as what we saw with Logitech’s G Pro tenkeyless mechanical keyboard for eSports, but the KM-G3 makes up for that by providing a software-free experience.

Software? What software? You don’t need software

Because there’s software, all changes to the keyboard tied to the Function (FN) key and on-board Flash storage. Finding out how to customize the keyboard requires a trip online and hunting down the manual to see how this keyboard ticks.

Aukey KM-G3
Bill Roberson/Digital Trends

According to both manuals, there are ten lighting effects users can cycle through by typing FN + INS: Full Backlight, Breathing, Selective, Color Cycling, Reactive Typing, Wave, Snake Marquee, Ripple, Circle, and Rainbow. If the keyboard is set to Full Backlight, users can switch between seven static colors by typing FN + DEL. Hitting the FN + INS keys will toggle the RGB lighting on and off. Aukey provides visual demos of six lighting effects here.

There’s an audience for “clicky” keys in the PC gaming community.

Selective mode consists of five pre-configured settings clearly printed on the first five horizontal number keys: first-person shooter (FPS), Cross Fire (CF), Call of Duty (COD), League of Legends (LOL), and Racing (Race). So, for instance, if users want to customize the FPS setting, first they type FN + 1 to load up the pre-set, and then type FN + HOME to enter customization mode. The four vertical indicators will then blink, providing a visual sign that the profile is ready for modification. After that, users repeatedly press the key they want to customize to arrive at the desired color. Re-typing FN + HOME will lock the settings.

Of course, there are other uses for the FN key outside of the gaming realm. Because there are no media keys, Aukey moved all media and Windows-based controls to the Function keys, arrow keys, and more. Each underlying function is clearly labeled on the keycaps as a single icon, such as an envelope on the F9 keycap for email, a mute icon on the F4 keycap, and so on. The keyboard can even be reset to its out-of-the-box settings if needed by typing FN + ESC.

Performance pros and cons

What this keyboard really needs to make it an ideal candidate for on-the-go PC gaming (think LAN tournaments, eSports) is a detachable USB cable. As it stands now, the cord is a permanent 5.2-foot-long fixture that could eventually encounter shortage-related connectivity problems when wrapped around the keyboard too many times.

Aukey KM-G3
Bill Roberson/Digital Trends

On a performance level, we can confirm that the keyboard can register at least 10 simultaneous key presses without any issues. The product pages and manuals say nothing about a specific key rollover number, although the Amazon listing does mention anti-ghosting. “Ghosting” is a term used when keyboards are unable to process more than three simultaneously pressed keys. When they are, some of the letters may not work while other letters unintentionally appear, as if typed by a ghost.

That said, we’re not sure how many simultaneous key presses this keyboard officially supports. Since it does not support on-board macros and we only have ten fingers to begin with, it’s obvious 10-key rollover ability should be perfect for PC gamers and general typists alike.

The KM-G3 catches the eye, but many PC gamers won’t go in for its software-free customization capabilities.

Of course, the general document writer or tax preparer won’t really care about anti-ghosting or what it takes to actuate a switch. That’s a huge selling point for PC gamers given that every millisecond counts when playing online. Unfortunately, there’s really no good way to measure the amount of force needed from touch to actuation, but using nickels is always fun.

To see what it takes to get a switch to actuate we used a simple method – piling on nickels. In the case of Aukey’s KM-G3, we managed to stack 13 nickels before the key accuated. As a reference, the custom switches used in the previously reviewed Logitech G Pro “tenkeyless” mechanical keyboard only required a stack of 10 nickels to actuate the switch.

In other words, the switches aren’t highly sensitive, but they don’t require a firm mash of a finger either. When using Logitech’s keyboard in DOOM, sidestepping and general movement felt quicker and thus more responsive to our movement commands due to the keyboard’s in-house switches, fast processing time, and super-quick connection to the PC. Of course, the Logitech G Pro retails for $130, so it may be somewhat unfair to compare it to Aukey’s solution that sells more than half the price.

Warranty

Finally, with the small KM-G3 price tag comes a big warranty provided by Aukey. The keyboard is covered for 24 months once users register the product with the company. However, there is a catch: it’s valid only if customers purchased the keyboard from AukeyDirect on Amazon. “For warranty claims or inquiries, please contact support with your product model number and Amazon order number,” the company states.

Our Take

The Aukey KM-G3 is a fun and highly attractive mechanical keyboard for general users and PC gamers alike. Its minimalistic design delivers a compact yet full 104-key input experience, while also amplifying its brilliant RGB illumination capabilities. It catches the eye rather quick, but many PC gamers will completely buy into the peripheral’s software-free customization capabilities.

The DT Accessory Pack

Aukey Gaming Mouse

$

Aukey Laptop Cooling Pad

$19.99

Aukey Nintendo Gaming Headset

$19.99

Is there a better alternative?

For the price point, Aukey tried to pack plenty of features into a super-slim, 104-key peripheral. However, the sub-$60 mechanical gaming keyboard market isn’t exactly dry as a desert, with well-known and not-so-well-known competitors flooding the market with similar, compact solutions. Aukey’s stiffest competition comes in the form of Razer’s Blackwidow and Corsair’s Vengeance K65 Compact. Both keyboards are of excellent quality, yet sell for $65.

How long will it last?

Keyboards tend to last a long time. While the Aukey doesn’t offer the more respected Cherry branded key switches, its Outemu switches still claim a lifespan of 50 million actuations. This keyboard could last a decade or more if it’s not abused.

Should you buy it?

Yes, if you want an inexpensive mechanical keyboard that’s good for both gaming and general use. Aukey’s KM-G3 isn’t perfect, but it’s affordable and fits nicely into a casual gaming niche that many keyboards fail to serve.

27
Apr

Computer-generated ‘brain age’ estimates how much time you’ve got left


Why it matters to you

U.K. researchers have developed a machine learning algorithm that can look at people’s brain tissue to determine their likely lifespan.

While it’s easy to count our number of birthdays to figure out how long we’ve each been on the planet, researchers at Imperial College London have another age-related metric they think is even more important: A person’s “brain age.”

That means taking into account the wear and tear on a person’s brain to help predict individuals at greater risk of suffering poor health and dying earlier. And — wouldn’t you know it — they’ve created a machine learning algorithm to help!

“The study involves using brain MRI scans to look at the size of people’s brain tissue — gray matter and white matter — across the lifespan,” Dr. James Cole, a research associate who led the study, told Digital Trends. “By building a statistical model of brain volumes in N = 2001 people aged 18-90, we can then compare new brain scans to get a prediction of someone’s ‘brain age.’ The idea is that if someone’s brain appears ‘older’ than their real chronological age, then this may be due to some damage or disease, or potentially indicates increased risk of future brain-health problems.”

In an article published in the journal Molecular Psychiatry, Imperial College researchers compared older brain scans, with lower levels of gray and white matter, to those of healthy individuals. The study included approximately 50 percent males and females, representing a broad range of ages.

People with older-looking brains typically had weaker grip, poorer lung function, and slower walking speed, in addition to lesser cognitive performance. The researchers also demonstrated that the difference between brain age and real age significantly relates to how long people live, proven by testing the algorithm on historical data sets of MRI data.

“Excitingly, when combining brain age with other potential aging biomarkers, such as the epigenetic clock, [we were able to improve] the accuracy with which mortality could be predicted,” Cole continued. “In the long run, MRI scans could be used as part of the clinical assessment to look for people at increased risk of poor brain and general health outcomes.”

Sure, an algorithm that tells you when you’re going to die isn’t going to be to everyone’s idea of a good time. But if it opens up the possibility of modifying your health to improve your estimated lifespan, this could prove to be just the wake-up call some folks need.

Although Cole told us that right now it’s still, “a long way from being a clinical tool” used by physicians.




27
Apr

Give yourself a digital green thumb with these garden wallpapers!


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Gardens are gorgeous.

Gardens have long been a critical part of society. Gardening was one of the first domestic tasks that early humans used to break out of the hunter-gatherer routine, to cultivate food and enable them to settle in one place with a stable supply of food. Even though most people do not need to garden for survival anymore, gardens are an activity that millions around the world still do for a variety of reasons.

Many people find gardening calming. Some consider it an investment in their home’s beauty. Some just want fresh tomatoes for making salads and salsas and covering every freaking counter in the house with a bumper crop. Some of us just want something green and natural in our lives, and even if you can’t have a glorious, glorious garden, you can get some of that beauty in your life with a garden-fresh wallpaper.

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Many people with high-stress or high-visibility jobs garden as a way to ground themselves, find peace, and as a way of disconnecting and de-stressing. Diedrich Bader is an actor; you may remember him from The Drew Carey Show, Veep, and American Housewife. Bader has quite the garden, and he shares impressive photos of his garden work on Twitter, which make for lovely wallpapers.

Diedrich Bader’s Garden

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I’ve shared this wallpaper before, and it remains one of the most beautiful photos I’ve ever taken. I took it at Disney (of course), and I think I blew about three years of luck with it. Look at the coloring, the framing, the focus! This is truly an enchanted rose, and I wonder what spells I could cast with it… This rose belonged to a garden path between Future World and World Showcase, and while that rose’s petals have long since fallen, the spell it cast on me has endured.

Golden Rose

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If you want to keep a garden neat and precise but don’t want to hassle with plants or dirt or — well, life — there is a garden for you, and its name is karesansui. Japanese rock gardens are a practice in imitating the essence of nature using rocks, gravel, water features, and the occasional greenery. Often meant to help with meditation, it’s no surprise that the name most of us know them by is zen garden, and these gardens are very zen, assuming you have the patience and skill to wrangle them. Looking at this beautiful, geometric scene, my first thought is, “How long did this all take?”

It’s followed very quickly by ‘how quickly would I be killed for using that garden for some live-action chess?’

Zen Checkerboard

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Trey Ratcliff is, in this humble blogger’s opinion, one of the best photographers on the planet today. If you own a Chromecast, you’ve seen his work, and it is breathtaking. It helps when the subject matter is beautiful, and the Queenstown Gardens in New Zealand are just that: breathtaking natural beauty. This shot also highlights another wonderful aspect of gardens: they’re always changing. They grow and grow and grow and then their leaves begin to change, their harvest ends, and plants die and go dormant for the winter. Here in this snapshot, the leaves are changing, creating wonderful contrast in the garden that is so fleeting until next year.

Under the Weeping Willows in Queenstown Gardens by Trey Ratcliff

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“There’s a wealth of happiness and romance, all in the golden afternoon…”

I think it’s safe to say we wish our gardens could talk to us. I’d maintain a garden meticulously if we could sing together like Golden Afternoon flowers in Alice in Wonderland. The differing flowers displayed a wonderful range of voices and styles, but it’s hard not to fall in love with the prima donna-esque White Rose. Her dewdrops shine like jewels, her leaves cocoon her like an emerald ball gown, she’s framed by glittering spider webs… She’s brilliant, and even if I can’t have her in my garden, I can at least have her on my home screen.

Golden Afternoon Rose by BetterthanBunnies