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AI system can track human movements from behind walls

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MIT scientists have developed an artificial intelligence (AI) X-ray vision system that can sense people’s postures and movements from the other side of a solid wall. The “RF-Pose” uses AI to teach wireless devices to sense people’s postures and movement, even from the other side of a wall.
The researchers used a neural network to analyse radio signals that bounce off people’s bodies, and can then create a dynamic stick figure that walks, stops, sits and moves its limbs as the person performs those actions. The team said that the system could be used to monitor diseases like Parkinson’s and multiple sclerosis (MS), providing a better understanding of disease progression and allowing doctors to adjust medications accordingly. It could also help elderly people live more independently, while providing the added security of monitoring for falls, injuries and changes in activity patterns.
The team is currently working with doctors to explore multiple applications in healthcare. “We’ve seen that monitoring patients’ walking speed and ability to do basic activities on their own gives healthcare providers a window into their lives that they didn’t have before, which could be meaningful for a whole range of diseases,” said Dina Katabi from Massachusetts Institute of Technology (MIT) in the US. “A key advantage of our approach is that patients do not have to wear sensors or remember to charge their devices,” said Katabi.
Besides health-care, the team said that RF-Pose could also be used for new classes of video games where players move around the house, or even in search-and-rescue missions to help locate survivors. Researchers gathered thousands of images of people doing activities like walking, talking, sitting, opening doors and waiting for elevators. They then used these images from the camera to extract the stick figures, which they showed to the neural network along with the corresponding radio signal.
This combination of examples enabled the system to learn the association between the radio signal and the stick figures of the people in the scene.
Post-training, RF-Pose was able to estimate a person’s posture and movements without cameras, using only the wireless reflections that bounce off people’s bodies. Besides sensing movement, researchers showed that they could use wireless signals to accurately identify somebody 83 per cent of the time out of a line-up of 100 individuals. This ability could be particularly useful for the application of search-and-rescue operations, when it may be helpful to know the identity of specific people. The model outputs a 2D stick figure, but the team is also working to create 3D representations that would be able to reflect even smaller micromovements.


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Vivo Y91 With Dual Rear Cameras, Dewdrop Notch Launched in India

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Vivo has launched a new smartphone in India called the Vivo Y91 which features a dual camera, a dewdrop notch, and an eye-catching gradient design on the rear panel.

The new smartphone from the Chinese company is priced at Rs. 10,990 and takes on similarly priced offerings from brands like Xiaomi and Realme. The Vivo Y91 is claimed to deliver a superior photography experience with its AI-backed dual-rear cameras at a budget price point.

Vivo Y91 price in India

 

The Vivo Y91 price in India has been set at Rs. 10,990 in India and is now available for sale from the official Vivo India e-shop, Amazon India, and Paytm Mall. It will also be made available via offline retail partners. On the Vivo India site, tt comes bundled with a free Bluetooth earphone. Vivo is also offering an exchange offer (only for old Vivo smartphones), no-cost EMI, and 15-day replacement with the purchase of the new smartphone. The company is also touting Vivo Y91 launch offers such as Jio benefits worth Rs. 4,000 along with 3TB data. Airtle subscribers on the other hand will get instant cashback of Rs. 2,000 and 240GB of data. An additional Rs. 500 off on exchange was also detailed.

Vivo Y91 specifications

The Vivo Y91 features a 6.22-inch Halo FullView display with an HD+ resolution (720×1520) and 88.6 percent screen-to-body ratio with a dewdrop notch on top and minimal side-bezels. The new Vivo smartphone is powered by the octa-core MediaTek Helio P22 SoC paired with a PowerVR GE8320 GPU and 2GB of RAM. In the imaging department, the Vivo Y91 features a dual rear camera setup consisting of a 13-megapixel (f/2.2 aperture) primary sensor and 2-megapixel (f/2.4) secondary sensor for capturing depth information, while on the front, there is an 8-megapixel (f/1.8) camera to handle selfies.

The AI-backed cameras bring features such as smart beautification which detects attributes such as gender, skin tone, and external lighting to apply the requisite effects and deliver the best photos. Portrait mode, slow-motion capture and face unlock are also on the table, however, there is also fingerprint sensor on the back.

In the storage department, there is 32GB of inbuilt storage which can further be expanded via microSD card (up to 256GB).

The dual-SIM Vivo Y91 (Nano+Nano) has support for 4G connectivity, Wi-Fi, Bluetooth 5.0, GLONASS, GPS, and Wi-Fi 2.4G, while a USB 2.0 port is there for charging and file transfer. The Vivo Y91 comes equipped with a 4,030mAh battery that is supported by a native smart power management system to conserve battery juice. The new smartphone tips the scale at 163.5 grams and measures 75.09 x 8.28 x 155.11mm. As for the color options, the Vivo Y91 comes in Ocean Blue and Starry Black shades with a gradient texture.

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Lenovo’s Yoga A940’s desktop reminds of Microsoft’s Surface Studio

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Lenovo has showcased a new Yoga A940 all-in-one desktop at the CES 2019 show in Las Vegas, and it clearly appears to be inspired from Microsoft’ giant Surface Studio desktop. Like the Microsoft all-in-one desktop, which aimed at creators and artists, the Yoga A940 is also focused on the same aspects.

The 27-inch 4K or QHD resolution IPS touchscreen display has a rotating hinge, which allows the display to tilt to 25-degrees drafting mode, and provides what Lenovo calls enough”flexibility and stability” for artists when drawing or sketching on the screen.

There’s also a Lenovo Precision Dial, similar to the Microsoft Surface Dial. The controller can be used by creators for “more precise selections and adjustments,” and there’s support for a digital pen as well.

 

The all-in-one desktop also has Lenovo’s Smart Assist AI-enabled features, a Dolby Vision-enabled 4K wide angle display and there are Dolby Atmos Speakers.

Insta360 updates their professional VR camera line with the Pro 2. Key new features include their Flowstate 9 axis stabilization, long range live monitoring with Farsight technology.

Coming to the dial, this can placed on either the left or right side of the Yoga A940, depending on user preference.

A user can scroll the dial to adjust features like brush stroke, tip size, opacity and flow rate on one hand. This Lenovo dial has been optimised for compatibility with popular applications like Adobe Illustrator, Photoshop, Lightroom, and Microsoft Word, Excel and PowerPoint.

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There’s also a Lenovo Precision Dial, similar to the Microsoft Surface Dial.

Lenovo’s new desktop will be powered with up to 8th Gen Intel Core i7 processors, AMD Radeon RX 560 discrete graphics.

The company is offering options of up to 32GB DDR4 RAM memory and up to 512GB PCIe SSD storage or there’s the option of going for 2TB SATA HDD storage.

The new Lenovo desktop will cost $2,349.99 and will be sold via the Lenovo US website and Best Buy starting April 2019. In comparison, the Microsoft Surface Studio costs nearly $3,999.

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Jabra Evolve 65t Wireless Earbuds With Up to 15-Hour Battery Life Launched

The Kashmir Monitor

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Jabra has expanded its portfolio and launched the Evolve 65t in India. The wireless earbuds are touted to be the world’s first Unified Communications (UC) certified wireless earbuds, and they come with 4-microphone professional sound support. It offers up to 15 hours of battery life, and claims to block out background noise as well. The company says that these wireless earbuds are also the first to attain Skype for Business certification as well. The Jabra Evolve 65T supports Alexa, Google Assistant, and Siri voice assistance, depending upon the operating system of the paired device.

The Jabra Evolve 65t is said to be available in India sometime this month, and be priced at Rs. 39,440. The earbuds work with two simultaneous devices at once – the smartphone and the laptop (via a separate Bluetooth adapter). It offers 5 hours battery life in single charge, and up to 15 hours battery life with the charging case. The earbuds take up to 2 hours to fully charge, the company claims. While it blocks surrounding noise, there’s also an option called HearThrough that allows for filtered ambient noise to pass through. The four microphones on board allow for high call quality with the frequency range from 100Hz to 10kHz, and the call and music experience can be customised in the Jabra Sound+ app for smartphone and Jabra Direct app for PCs and Laptops.

The Jabra Evolve 65t is IP55 certified which means that it can withstand low-pressure water jets from any direction. The company notes that you can use the right earbud on its own, while leaving the left earbud in the charging case. However, the left earbud cannot be used on its own. The ear tips come in three sizes – small, medium, and large, and connectivity options include Bluetooth v5.0 and wireless range of up to 10 metres. The Jabra Evolve 65t’s dimensions measure in at 27x30x22.5mm.

 

“With the Evolve range we have focused on empowering users to be productive at work. Whether your main place of work is a crowded, open office or a flexible environment, it is crucial that you have seamless connectivity and optimal concentration. With Evolve 65t, we now add a true wireless headset to the professional experience,” said Holger Reisinger, SVP Business Solutions at Jabra.

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