Researchers are improving the performance of technologies ranging from medical CT scanners to digital cameras using a system of models to extract specific information from huge collections of data and then reconstructing images like a jigsaw puzzle. The new approach is called model-based iterative reconstruction, or MBIR. "It's more-or-less how humans solve problems by trial and error, assessing probability and discarding extraneous information," said Charles Bouman, Purdue University's Michael and Katherine Birck Professor of Electrical and Computer Engineering and a professor of biomedical engineering. MBIR has been used in a new CT scanning technology that exposes patients to one-fourth the radiation of conventional CT scanners. In consumer electronics, a new camera has been introduced that allows the user to focus…

Purdue University researchers have received a five-year $14.5 million National Science Foundation grant to expand its widely used nanoHUB.org online science and engineering gateway. The Purdue-led Cyber Platform, a part of the Network for Computational Nanotechnology (NCN), will assist researchers across the globe by developing a virtual society that shares simulation software, data and other innovative content to provide engineers and scientists with the fundamental knowledge required to advance nanoscience into nanotechnology. "Thousands of times a day the leading researchers 'come' to Purdue through the globally unique tool of nanoHUB," Purdue President Mitch Daniels said Tuesday (Feb. 5) in announcing the grant. "The new NSF investment is an affirmation of the brilliance of nanoHUB's Purdue creators and of its worldwide…