Featured Research

from universities, journals, and other organizations

Computer scientists present smile database

Date:
July 30, 2012
Source:
Universiteit van Amsterdam (UVA)
Summary:
What exactly happens to your face when you smile spontaneously, and how does that affect how old you look? Computer scientists recorded the smiles of hundreds of people, thus creating the most comprehensive smile database ever. The research also shows that you look younger when you smile, but only if you are over forty. If you are under forty, you should look neutral if you want to come across younger.

What exactly happens to your face when you smile spontaneously, and how does that affect how old you look?
Credit: auremar / Fotolia

What exactly happens to your face when you smile spontaneously, and how does that affect how old you look? Computer scientists from the University of Amsterdam's (UvA) Faculty of Science recorded the smiles of hundreds of visitors to the NEMO science centre in Amsterdam, thus creating the most comprehensive smile database ever. The results can be seen via the link below. The research was conducted as part of the project Science Live, sponsored by the Netherlands Organisation for Scientific Research (NOW) and the Royal Netherlands Academy of Arts and Sciences (KNAW).

481 test subjects participated in the research of Theo Gevers and Albert Ali Salah. The researchers made a video recording of a posed smile and a spontaneous smile for each participant. The subjects also were also asked to look angry, happy, sad, surprised and scared. Gevers and Salah analysed certain characteristics, such as how quickly the corners of the mouth turn upwards. This knowledge can be applied to computer software which guesses ages, recognise emotions and analyse human behaviour.

The researchers also asked the test subjects to look at images of other test subjects. They had to guess the age of those people and state how attractive they found them. They were also asked to judge character traits, such as whether the person is helpful by nature, or if that person is perhaps in love?

The data collected allowed the researchers to develop software that can estimate people's age. The software takes into account whether someone is happy, sad or angry, and adjusts its estimate accordingly. The software appears to be slightly better at estimating ages than humans. On average, humans' estimates are seven years off , while the computer is six years off on average .

The research of Gevers and Salah also shows that you look younger when you smile, but only if you are over forty. If you are under forty, you should look neutral if you want to come across younger.

Smile Database: http://www.uva-nemo.org/


Story Source:

The above story is based on materials provided by Universiteit van Amsterdam (UVA). Note: Materials may be edited for content and length.


Cite This Page:

Universiteit van Amsterdam (UVA). "Computer scientists present smile database." ScienceDaily. ScienceDaily, 30 July 2012. <www.sciencedaily.com/releases/2012/07/120730111729.htm>.
Universiteit van Amsterdam (UVA). (2012, July 30). Computer scientists present smile database. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2012/07/120730111729.htm
Universiteit van Amsterdam (UVA). "Computer scientists present smile database." ScienceDaily. www.sciencedaily.com/releases/2012/07/120730111729.htm (accessed September 2, 2014).

Share This




More Computers & Math News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Google's Self-Driving Car Still Has Many Flaws

Google's Self-Driving Car Still Has Many Flaws

Newsy (Sep. 1, 2014) You've seen a lot of Google's self-driving car, but that doesn't mean it's coming soon. A new report says the vehicle is nowhere near road ready. Video provided by Newsy
Powered by NewsLook.com
Apple's Rumored iWatch Could Cost $400

Apple's Rumored iWatch Could Cost $400

Newsy (Aug. 31, 2014) Apple is expected to charge a premium for its still-rumored wearable device. Video provided by Newsy
Powered by NewsLook.com
Amazon Chases Netflix And HBO With Five New Pilots

Amazon Chases Netflix And HBO With Five New Pilots

Newsy (Aug. 31, 2014) Amazon has released another batch of five pilots, allowing viewers to vote on which shows will get full seasons on the company's streaming service. Video provided by Newsy
Powered by NewsLook.com
Apple Wants Your iPhone To Become Your Wallet

Apple Wants Your iPhone To Become Your Wallet

Newsy (Aug. 31, 2014) Apple might soon announce a feature that would allow iPhones to act as a credit card when making payments in physical stores. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins