This Tool Reveals A Pixelated Face By Making It 60 Times Sharper

Dhir Acharya - Jun 18, 2020


This Tool Reveals A Pixelated Face By Making It 60 Times Sharper

There are a bunch of photos from years ago with very low resolution, and this new AI tool called Pulse will allow us to make them sharp and clear again.

The society is giving us more reasons to hide the faces of people and bystanders in our photos and videos before sharing them on social media. However, technology also has a way to work around whatever method we apply. In the latest example, researchers at Duke University have shown a new tool that can reveal pixelated faces.

In image processing, there is a tool to increase a digital image’s resolution without compromising sharpness, detail, or adding weird visual artifacts. While modern smartphones can take photos of over 20MP resolution, digital cameras have been around for years and there are a lot of images from the past that have low resolution compared with present ones. That makes a tool scaling up images more important than ever.

Researchers at Duke University have shown a new tool that can reveal pixelated faces
Researchers at Duke University have shown a new tool that can reveal pixelated faces

The typical approach to raising an image’ resolution is by starting with a low-resolution version, then use intelligent algorithms to predict and add more pixels and details to generate a high-resolution version. However, as a low-resolution image can lack a lot of details, fine features usually get lost during the process, which leads to faces that are too soft and smoothed out.

Now, researchers at Duke University have created Photo Upsampling via Letent Space Exploration, or Pulse, to address the problem differently. They use progress developed with machine learning in recent years.

Also starting with a low-resolution image, but Pulse doesn’t process it directly. Instead, it feeds the image to an AI-based face generator that uses generative adversarial networks for creating random realistic headshots.

Pulse generates high-resolution images from low-resolution samples
Pulse generates high-resolution images from low-resolution samples

Previously, this technique was used to create non-existent, life-like faces. But now, when the faces have been generated, they are downsized to the original low-resolution reference and compared with it, to see how they match. The process can quickly find a close comparison then change it gradually until it achieves a down-sampled result matching the original low-resolution sample.

As of now, there is still a significant difference between the high-resolution images generated by the tool and the original sample, but the tool will be improved to get better results.

>>> 43,000-Square-Meter Nazi Submarine Base Turned Into The World's Largest Digital Art Gallery

Tags

Comments

Sort by Newest | Popular

Next Story

Read more

OnePlus 8T Roundup: Price, Specifications, Design - Everything We Know So Far

Mobile- Sep 25, 2020

OnePlus 8T Roundup: Price, Specifications, Design - Everything We Know So Far

OnePlus 8T will be launched on October 14. Here is everything we have got about OnePlus' upcoming flagship, including specs, price, design, and more.

POCO X3 Arrives In India: Snapdragon 732G, 6,000mAh Battery, Affordable Price

Mobile- Sep 22, 2020

POCO X3 Arrives In India: Snapdragon 732G, 6,000mAh Battery, Affordable Price

The POCO X3 Indian version doesn't support NFC like the European version, but it has a larger 6,000mAh battery and a more affordable price tag.

How To Set Up Chromecast Device Using Your Android Phone

Gadgets- Sep 24, 2020

How To Set Up Chromecast Device Using Your Android Phone

Have you just bought a Chromecast and are wondering how to set up Chromecast device? Don't worry, we have you covered

New Leaks Say The Pixel 4a 5G Will Sport An 8MP Front-Facing Camera

Mobile- Sep 24, 2020

New Leaks Say The Pixel 4a 5G Will Sport An 8MP Front-Facing Camera

Over the past weeks, several specifications of the upcoming Google Pixel 4a 5G have been leaked all over the internet. What's new this time?

Russia To Supply 1.2 Billion Doses Of Sputnik V COVID-19 Vaccine

Features- Sep 23, 2020

Russia To Supply 1.2 Billion Doses Of Sputnik V COVID-19 Vaccine

The Sputnik V COVID-19 vaccine has been scheduled to be delivered in countries including India, Mexico, Saudi Arabia, and Brazil.

Russia To Offer Free COVID-19 Vaccine To United Nations Staff

Features- Sep 24, 2020

Russia To Offer Free COVID-19 Vaccine To United Nations Staff

During the General Assembly, the Russian president has decided to offer UN staff in New York and around the world free Sputnik-V vaccine.