New technology makes 3-D imaging quicker, easier

February 17, 2008

Technology invented by scientists from The Johns Hopkins University and Ben-Gurion University of the Negev can make three-dimensional imaging quicker, easier, less expensive and more accurate, the researchers said.

This new technology, dubbed FINCH, for Fresnel incoherent correlation holography, could have implications in medical applications such as endoscopy, ophthalmology, CT scanning, X-ray imaging and ultrasounds, co-inventor Gary Brooker said. It may also be applicable to homeland security screening, 3-D photography and 3-D video, he said.

A report presenting the first demonstration of this technology -- with a 3-D microscope called a FINCHSCOPE -- will appear in the March issue of Nature Photonics and will be available on the Nature Photonics Web site on Feb. 17.

“Normally, 3-D imaging requires taking multiple images on multiple planes and then reconstructing the images,” said Brooker, director of the Johns Hopkins University Microscopy Center on the university’s Montgomery County Campus.

“This is a slow process that is restricted to microscope objectives that have less than optimal resolving power,” said Brooker, a research professor of chemistry in Krieger School of Arts and Sciences who also has an appointment in the Whiting School of Engineering Advanced Technology Laboratory. "For this reason, holography currently is not widely applied to the field of 3-D fluorescence microscopic imaging.”

The FINCH technology and the FINCHSCOPE uses microscope objectives with the highest resolving power, a spatial light modulator, a charge-coupled device camera and some simple filters to enable the acquisition of 3-D microscopic images without the need for scanning multiple planes.

The Nature Photonics article reports on a use of the FINCHSCOPE to take a 3-D still image, but moving 3-D images are coming, said Brooker and co-inventor Joseph Rosen, professor of electrical and computer engineering at Ben-Gurion University of the Negev in Israel.

“With traditional 3-D imaging, you cannot capture a moving object,” Brooker said. “With the FINCHSCOPE, you can photograph multiple planes at once, enabling you to capture a 3-D image of a moving object. Researchers now will be able to track biological events happening quickly in cells.”

"In addition, the FINCH technique shows great promise in rapidly recording 3-D information in any scene, independent of illumination,” Rosen said.

Source: Johns Hopkins University

Explore further: Researchers evaluate how coral-seaweed interactions affect coral associated reef fishes

Related Stories

Recommended for you

Study shows how to get sprayed metal coatings to stick

November 21, 2017

When bonding two pieces of metal, either the metals must melt a bit where they meet or some molten metal must be introduced between the pieces. A solid bond then forms when the metal solidifies again. But researchers at MIT ...

Imaging technique unlocks the secrets of 17th century artists

November 21, 2017

The secrets of 17th century artists can now be revealed, thanks to 21st century signal processing. Using modern high-speed scanners and the advanced signal processing techniques, researchers at the Georgia Institute of Technology ...

Physicists design $100 handheld muon detector

November 20, 2017

At any given moment, the Earth's atmosphere is showered with high-energy cosmic rays that have been blasted from supernovae and other astrophysical phenomena far beyond the Solar System. When cosmic rays collide with the ...

A curious quirk brings organic diode lasers one step closer

November 20, 2017

Since their invention in 1962, semiconductor diode lasers have revolutionized communications and made possible information storage and retrieval in CDs, DVDs and Blu-ray devices. These diode lasers use inorganic semiconductors ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.