Featured Research

from universities, journals, and other organizations

Image Processing Methods For Computer Vision-Based Fuel Gauge Developed

Date:
April 6, 2000
Source:
Penn State
Summary:
Taking a "look" at how much fuel is left in the tank could become literally possible now that Penn State computer engineers have developed image processing methods necessary for a computer vision-based fuel gauge.

University Park, Pa. -- Taking a "look" at how much fuel is left in the tank could become literally possible now that Penn State computer engineers have developed image processing methods necessary for a computer vision-based fuel gauge.

The developers say a computer vision-based gauge would be much safer than current gauges that rely on a sensor with low voltage electrical leads that come in contact with the fuel. Electrical contact fuel measuring systems are often suspected of having contributed to explosions in aircraft disasters.

The image processing methods were developed by Srivatsan Chakravarthy, who earned his master's degree in August at Penn State, Dr. Rangachar Kasturi, professor of computer science and engineering, and Dr. Rajeev Sharma, assistant professor of computer science and engineering. The work was part of Chakravarthy's master's thesis.

In the method the Penn State team developed, nothing need be in the fuel tank except the fuel, Kasturi says. Two transparent glass portholes in the top of the fuel tank allow all the access needed to determine the depth of the liquid inside. One port enables a light source to flash the image of two crossed lines on the surface of the liquid while the other port allows an off-the-shelf video camera attached to a computer to record the position of the lines.

The computer's image processing software, developed by the researchers, is trained in a calibration process in which the tank is filled gradually and the position of the crossed lines, as recorded by the camera, are noted at the various depths. The correspondence between the depths in the actual 3-D scene and the 2-D image recorded by the camera is established in a process called digital mapping. The computer can then calculate the change in depth of the liquid in the tank when any one of the units, or pixels, in the camera's image of the crossed lines changes.

The researchers note that the mathematical problems involved in determining depth in a three-dimensional space from a two-dimensional camera image forms a part of almost all computer vision applications. A similar problem has to be solved whether one is equipping a robot with a 2-D camera "eye" to navigate in the real 3-D world or determining the depth of a liquid from its 2-D image. The researchers used two standard mathematical approaches to solving the problem for the fuel tank and found that one, triangulation, yielded simple, direct solutions that came at low computational cost. Although their computations were performed with a stationary system, they think their approach can be adapted to systems undergoing vibration, turbulence or other displacement.

The researchers conclude that computer vision offers an attractive alternative to the currently available options. They note that their experimental results are available now for studying the feasibility of implementing an actual system that could be incorporated in aircraft, automobiles or other applications.


Story Source:

The above story is based on materials provided by Penn State. Note: Materials may be edited for content and length.


Cite This Page:

Penn State. "Image Processing Methods For Computer Vision-Based Fuel Gauge Developed." ScienceDaily. ScienceDaily, 6 April 2000. <www.sciencedaily.com/releases/2000/04/000404204059.htm>.
Penn State. (2000, April 6). Image Processing Methods For Computer Vision-Based Fuel Gauge Developed. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2000/04/000404204059.htm
Penn State. "Image Processing Methods For Computer Vision-Based Fuel Gauge Developed." ScienceDaily. www.sciencedaily.com/releases/2000/04/000404204059.htm (accessed October 22, 2014).

Share This



More Computers & Math News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Newsy (Oct. 21, 2014) If you've ever watched "Back to the Future Part II" and wanted to get your hands on a hoverboard, well, you might soon be in luck. Video provided by Newsy
Powered by NewsLook.com
Robots to Fly Planes Where Humans Can't

Robots to Fly Planes Where Humans Can't

Reuters - Innovations Video Online (Oct. 21, 2014) Researchers in South Korea are developing a robotic pilot that could potentially replace humans in the cockpit. Unlike drones and autopilot programs which are configured for specific aircraft, the robots' humanoid design will allow it to fly any type of plane with no additional sensors. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Japanese Scientists Unveil Floating 3D Projection

Japanese Scientists Unveil Floating 3D Projection

Reuters - Innovations Video Online (Oct. 20, 2014) Scientists in Tokyo have demonstrated what they say is the world's first 3D projection that floats in mid air. A laser that fires a pulse up to a thousand times a second superheats molecules in the air, creating a spark which can be guided to certain points in the air to shape what the human eye perceives as an image. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Apple Enters Mobile Payment Business

Apple Enters Mobile Payment Business

AP (Oct. 20, 2014) Apple is making a strategic bet with the launch of Apple Pay, the mobile pay service aimed at turning your iPhone into your wallet. (Oct. 20) Video provided by AP
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