LiSense senses a user’s movements by utilizing shadow maps on the floor to reconstruct their 3D posture (Credit: Dartmouth College)
What if the light in the room could sense you waving your hand as you enter? And what if it responded by introducing minute light changes that instructed your smart coffee machine to switch on?
Researchers at Dartmouth College have developed a sensing system called LiSense that aims to make the light around us “smart.” Not only does it use light to sense people’s movements, but it also allows them to control devices in their environment with simple gestures, using light to transmit information.
The goal is to use light to gesture and interact with objects in a room, just like how you’d use a Wii or Kinect to interact with a TV. Xia Zhou, lead author of a paper on the research, wants to use smart light to turn every indoor space into a cognitive space.
“Using purely visible light, we can not only stay connected to the internet, but also have the environment know and respond to what we do, how we behave, and how we feel,” Zhou tells Gizmag. “Smart light can bring intelligence to all the devices immersed in the light and allow them to act based on our behaviours.”
To get LiSense to track a person’s movements only through light, the researchers built a light-sensing testbed, with LED lights in the ceiling and light sensors on the floor. The system uses the shadows cast by a person standing on the testbed to reconstruct their 3D human skeletal posture in real time. LiSense, the team states, essentially works on the same principle as a shadow puppet, where a hand held before a light blocks certain light rays and not others.
“Consider a person standing under several lights,” Zhou explains. “If we can recover the shadow cast by each light in a different direction, we can aggregate the shadow information and collect the blockage information of a large number of light rays. We then use the information to search for a 3D skeleton posture that best matches the blockage information revealed by these shadows.”
Read more: Smart light lets you control your environment
The Latest on: Smart light
via Google News
The Latest on: Smart light
- Smart Glass Market Size Forecast to Reach $6.5 Billion by 2026on April 14, 2021 at 4:50 pm
Smart Glass Market” The Rising Demand for Electrochromic, Thermochromic, and Photochromic Glass Due to Its Transmission Properties Will Further Drive the ...
- Here’s How Smart Headlights Workon April 14, 2021 at 12:26 pm
Adaptive beam headlight technology is coming, and we explain how it works. When do you think smart headlights will be allowed in the US?
- Deutsche Telekom to market tooz, Nreal Light smart glasses on Initiate platformon April 14, 2021 at 7:48 am
Deutsche Telekom will start marketing smart glasses from tooz and Nreal Light on its new platform Initiate over the coming two weeks. Users will be able to try the smart glasses from tooz until 1 May ...
- Seattle smart home startup Wyze releases new floor lamp and shines light on busy yearon April 13, 2021 at 9:00 am
The spotlight is once again shining on Seattle-based smart home products maker Wyze Labs, which announced Tuesday that it's taking preorders for a new Wyze Floor Lamp. Priced at ...
- Light up your life with 32 feet of smart LED lighting for $17on April 12, 2021 at 3:05 pm
Great for TV bias lighting or decorating around your house, this strip works with Alexa and Google Assistant and is half off.
- Get a pair of smart Wi-Fi 3-way light switches for $13.69, a tie for the lowest price everon April 12, 2021 at 2:18 pm
Often the easiest path to making a smart home is to install smart bulbs. But sometimes your fixtures use weird bulbs or are recessed and not conducive to being replaced. That's when you do an end run ...
- This best-selling $15 smart light switch has over 17,000 five-star reviews on Amazonon April 12, 2021 at 1:04 pm
However, there are a few items that will barely dent your wallet, and this best-selling Kasa Smart Light Switch ranks high on the list. Retailing for just $15 right now (it’s currently on sale for 25 ...
- Smart windows regulate right light in the greenhouseon April 8, 2021 at 6:54 am
One thing that is still difficult to control, even in high-tech greenhouses, is the light that reaches the crops. TU/e-researcher Gilles Timmermans created smart windows to regulate intensity and ...
- The best smart light bulbs in 2021on April 8, 2021 at 6:24 am
The best smart light bulbs are bright, easy to set up and compatible with all the top smart home systems. They're also all LEDs, so they use much less energy than traditional incandescent and ...
- The 8 Best Smart Light Bulbs To Light Your Home With Billions Of Colorson April 7, 2021 at 10:43 am
The best smart light bulbs are a wonderful way to make a room in your home more exciting, more intimate and more fun, all in one go. Better yet, you can control the whole experience from your ...
via Bing News