Featured Research

from universities, journals, and other organizations

Zooming In To Catch The Bad Guys: New 'Perfection Tool' From Researchers In Israel Enhances Video To Catch Criminals And Terrorists

Date:
July 5, 2009
Source:
American Friends of Tel Aviv University
Summary:
It's a frequent scene in television crime dramas: Clever police technicians zoom in on a security camera video to read a license plate or capture the face of a hold-up artist. But in real life, enhancing this low-quality video to focus in on important clues hasn't been an easy task. Until now. Researchers in Israel have developed a new video "perfection tool" to help investigators enhance raw video images and identify suspects.

It's a frequent scene in television crime dramas: Clever police technicians zoom in on a security camera video to read a license plate or capture the face of a hold-up artist. But in real life, enhancing this low-quality video to focus in on important clues hasn't been an easy task. Until now.

Related Articles


Prof. Leonid Yaroslavsky of Tel Aviv University and his colleagues have developed a new video "perfection tool" to help investigators enhance raw video images and identify suspects. Commissioned by a defense-related company to improve what the naked eye cannot see, the tool can be used with live video or with recordings, in color or black-and-white.

"This enhancement of resolution can be a critical factor in locating terrorists or identifying criminal suspects," says Prof. Yaroslavsky. His team's findings were recently published in Optical Letters and the Journal of Real Time Image Processing.

Seeing using computational imaging

The new invention enhances the resolution of raw video images from security cameras, military binoculars, and standard personal-use video cameras, improving the quality at which the images were originally recorded or transmitted. This can mean the difference between "seeing" trees blowing in the wind and finding a terrorist hiding in those trees.

"Our video perfection tool works to improve visual quality and achieving a higher resolution of the video image," says Prof. Yaroslavsky. Once a commercial partner is found, the device can be integrated into existing technology within a matter of months, he says.

Digitally calming the "turbulent atmosphere"

A major challenge in video analysis is that images of objects become distorted over long distances due to variations in the air that can affect our sight and the "sight" of a camera. In the language of optical science, this is known as a "turbulent atmosphere." A critical image of a person or object can become unstable and almost impossible to identify with any amount of accuracy.

The TAU team exploited the fact that most parts of a video scene remain still. While there are moving objects such as people, animals or vehicles, a major part of the video ― the background –– does not move at all. Using specially designed algorithms, the team built a software application that lets cameras and video analysis equipment stabilize images, allowing objects that are really moving to be distinguished from chaotic atmospheric changes.

The technology will increase the odds of identifying suspects in court, says Prof. Yaroslavsky, but its civilian applications are equally significant. Instead of sending large video files over the Internet, smaller and lower-resolution files could be sent, to be enhanced at their destination points. This could save bandwidth and time.

"It's quite a new approach to video perfection," says Prof. Yaroslavsky. "A lot of work has been done in this field, so it's very gratifying to find a new and original application."


Story Source:

The above story is based on materials provided by American Friends of Tel Aviv University. Note: Materials may be edited for content and length.


Cite This Page:

American Friends of Tel Aviv University. "Zooming In To Catch The Bad Guys: New 'Perfection Tool' From Researchers In Israel Enhances Video To Catch Criminals And Terrorists." ScienceDaily. ScienceDaily, 5 July 2009. <www.sciencedaily.com/releases/2009/06/090630153406.htm>.
American Friends of Tel Aviv University. (2009, July 5). Zooming In To Catch The Bad Guys: New 'Perfection Tool' From Researchers In Israel Enhances Video To Catch Criminals And Terrorists. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2009/06/090630153406.htm
American Friends of Tel Aviv University. "Zooming In To Catch The Bad Guys: New 'Perfection Tool' From Researchers In Israel Enhances Video To Catch Criminals And Terrorists." ScienceDaily. www.sciencedaily.com/releases/2009/06/090630153406.htm (accessed January 25, 2015).

Share This


More From ScienceDaily



More Computers & Math News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Technology Is Ruining Snow Days For Students

How Technology Is Ruining Snow Days For Students

Newsy (Jan. 25, 2015) — More schools are using online classes to keep from losing time to snow days, but it only works if students have Internet access at home. Video provided by Newsy
Powered by NewsLook.com
Sundance Films Tap Into Virtual Reality

Sundance Films Tap Into Virtual Reality

Newsy (Jan. 25, 2015) — Virtual reality headsets offer more experiences for viewers and filmmakers at the Sundance Film Festival. Video provided by Newsy
Powered by NewsLook.com
No, A Google Exec Did Not Predict An Internet Apocalypse

No, A Google Exec Did Not Predict An Internet Apocalypse

Newsy (Jan. 24, 2015) — Earlier this week, a Google exec made headlines for saying "the Internet will disappear," but that doesn&apos;t quite mean what it sounds like. Video provided by Newsy
Powered by NewsLook.com
Tim Cook Made 8 Times Less Than Another Apple Exec In 2014

Tim Cook Made 8 Times Less Than Another Apple Exec In 2014

Newsy (Jan. 23, 2015) — Tim Cook&apos;s total compensation more than doubled in 2014 to $9.2 million, but his pay was still less than four other Apple executives. 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:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

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