Close Menu
  • News
  • Medical
  • Technology
  • Nanomaterials
  • Research
  • Blog
    • Nasiol.com
  • Contact
    • Tech7685@gmail.com
What's Hot

Dual-stage monitoring technique for nanocomposites can streamline manufacturing and property tracking

May 11, 2025

Probing the molecular mechanisms of metastasis

May 10, 2025

AI-powered electronic nose detects diverse scents for health care and environmental applications

May 10, 2025
Facebook X (Twitter) Instagram
Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily
  • News
  • Medical
  • Technology
  • Nanomaterials
  • Research
  • Blog
    • Nasiol.com
  • Contact
    • Tech7685@gmail.com
Facebook X (Twitter) Instagram
Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily Nanotech – Nanomaterials | Medical | Research | News Stories Updated Daily
Home»News»A sleeker facial recognition technology tested on Michelangelo’s David
News

A sleeker facial recognition technology tested on Michelangelo’s David

February 13, 2024No Comments3 Mins Read
Facebook Twitter Pinterest Telegram LinkedIn Tumblr WhatsApp Email
A sleeker facial recognition technology tested on Michelangelo’s David
Share
Facebook Twitter LinkedIn Pinterest Telegram Email
A new lens-free and compact system for facial recognition scans a bust of Michelangelo’s David and reconstructs the image using less power than existing 3D surface imaging systems. Credit: Nano Letters (2024). DOI: 10.1021/acs.nanolett.3c05002

Many people are familiar with facial recognition systems that unlock smartphones and game systems or allow access to our bank accounts online. But the current technology can require boxy projectors and lenses. Now, researchers report in Nano Letters a sleeker 3D surface imaging system with flatter, simplified optics. In proof-of-concept demonstrations, the new system recognized the face of Michelangelo’s David just as well as an existing smartphone system.

3D surface imaging is a common tool used in smartphone facial recognition, as well as in computer vision and autonomous driving. These systems typically consist of a dot projector that contains multiple components: a laser, lenses, a light guide and a diffractive optical element (DOE).

The DOE is a special kind of lens that breaks the laser beam into an array of about 32,000 infrared dots. So, when a person looks at a locked screen, the facial recognition system projects an array of dots onto most of their face, and the device’s camera reads the pattern created to confirm the identity. However, dot projector systems are relatively large for small devices such as smartphones. So, Yu-Heng Hong, Hao-Chung Kuo, Yao-Wei Huang and colleagues set out to develop a more compact facial recognition system that would be nearly flat and require less energy to operate.

To do this, the researchers replaced a traditional dot projector with a low-power laser and a flat gallium arsenide surface, significantly reducing the imaging device’s size and power consumption. They etched the top of this thin metallic surface with a nanopillar pattern, which creates a metasurface that scatters light as it passes through the material.

See also  Breakthrough in Virus Research Using Sound Wave Technology

In this prototype, the low-powered laser light scatters into 45,700 infrared dots that are projected onto an object or face positioned in front of the light source. Like the dot projector system, the new system incorporates a camera to read the patterns that the infrared dots created.

In tests of the prototype, the system accurately identified a 3D replica of Michelangelo’s David by comparing the infrared dot patterns to online photos of the famous statue. Notably, it accomplished this using five to 10 times less power and on a platform with a surface area about 230 times smaller than a common dot-projector system. The researchers say their prototype demonstrates the usefulness of metasurfaces for effective small-scale low-power imaging solutions for facial recognition, robotics and extended reality.

Provided by
American Chemical Society



Source link

David facial Michelangelos recognition sleeker technology tested
Share. Facebook Twitter Pinterest LinkedIn Tumblr Email

Related Posts

Dual-stage monitoring technique for nanocomposites can streamline manufacturing and property tracking

May 11, 2025

Probing the molecular mechanisms of metastasis

May 10, 2025

AI-powered electronic nose detects diverse scents for health care and environmental applications

May 10, 2025

Microbubble dynamics in boiling water enable precision fluid manipulation

May 9, 2025

Unique molecule may lead to smaller, more efficient computers

May 9, 2025

Depositing quantum dots on corrugated chips improves photodetector capabilities

May 8, 2025

Comments are closed.

Top Articles
News

Nanotechnology in Biodiversity Conservation

Research

Breakthrough in Virus Research Using Sound Wave Technology

News

Researchers develop new nanoparticle to deliver drugs to immune system cells

Editors Picks

Dual-stage monitoring technique for nanocomposites can streamline manufacturing and property tracking

May 11, 2025

Probing the molecular mechanisms of metastasis

May 10, 2025

AI-powered electronic nose detects diverse scents for health care and environmental applications

May 10, 2025

Microbubble dynamics in boiling water enable precision fluid manipulation

May 9, 2025
About Us
About Us

Your go-to source for the latest nanotechnology breakthroughs. Explore innovations, applications, and implications shaping the future at the molecular level. Stay informed, embrace the nano-revolution.

We're accepting new partnerships right now.

Facebook X (Twitter) Instagram Pinterest
Our Picks

Semiconductor Manufacturing: The Industry’s Biggest Players

April 11, 2024

Ultrathin conductor surpasses copper for more energy-efficient nanoelectronics

January 15, 2025

European XFEL elicits secrets from an important nanogel

April 30, 2024

Subscribe to Updates

Get the latest creative Nano Tech news from Elnano.com

© 2025 Elnano.com - All rights reserved.
  • Contact
  • Privacy Policy
  • Terms & Conditions

Type above and press Enter to search. Press Esc to cancel.

Cleantalk Pixel