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Welcome to the Rochester Institute of Technology, Chester F. Carlson Center for Imaging Science, Biomedical and Materials Multimodal Imaging Laboratory Homepage!
Our mission is to develop innovative ways to visualize, analyze, and characterize biological tissues and synthetic materials using multimodal medical imaging devices.

Nov 17, 2009 - Three researchers travel to Madrid to Present at ICERI 2009
Maria Helguera, PhD, Bob Callens, and Joe Pow will be presenting "A Research Approach to Recruit College Applicants in Specialized Science to Benefit Global Technology and Innovation" at the International Conference on Education, Research, and Innovation.
Sept 25, 2009 - Maria Helguera, PhD, presents "Developments of a Novel 3-D Optical Molecular System Incorporating Structured Illumination Technology" at the IEEE and IS&T Western New York Image Processing Workshop
This work which was sponsored by Carestream Health was accomplished by an RIT senior design team. A currently available 2-D high-resolution, optical molecular imaging system was modified by the addition of a structured illumination source, Optigrid(TM), to investigate the feasibility of providing depth resolution along the optical axis. The modification of the system involved the insertion of the Optigrid(TM) and a lens in the path between the light source and the image plane, as well as control and signal processing software. The primary challenge of the design, which was to project the Optigrid(TM) onto the imaging surface at an angle, was resolved applying the Scheimpflug principle. The illumination system implements modulation of the light source and provides a framework for capturing depth resolved mages. The system is capable of in-focus projection of the Optigrid(TM) at different spatial frequencies, and supports the use of different lenses. A calibration process was developed for the system to achieve consistent phase shifts of the Optigrid(TM). Post-processing extracted depth information using depth modulation analysis using a phantom
Sept 13, 2009 - Karl Baum, PhD, presents "Simulation of High-Resolution Magnetic Resonance Images on the IBM BlueGene/L Supercomputer using SIMRI" at International Conference on Imaging Technologies in Biomedical Sciences 2009
SIMRI is a Bloch equation-based magnetic resonance image (MRI) simulator, developed at CREATIS, Lyons, France, designed for small clusters supporting MPI. Modifications were implemented to support the specialized operating system and hardware requirements available on the Blue Gene/L Systems. In particular, this involved optimizing memory usage for both the MPI communication and SIMRI to be sufficiently below the 1024MB limitation of a computational node (virtual memory is not supported by the OS). Additional modifications were necessary to allow increased parallelization within SIMRI in order support and efficiently utilize the large number of compute nodes available on the Blue Gene. The code was evaluated using two Blue Gene/L systems available in New York. New York Blue is hosted at Brookhaven National Laboratory and consists of 18,432 dual 700Mhz PowerPC 440 nodes with 1024MB of memory. Rensselaer’s Computational Center for Nanotechnology hosts another system consisting of 16,384 dual 700Mhz PowerPC 440 nodes divided equally between 512MB and 1024MB configurations.
Sept 13, 2009 - Karl Baum, PhD, presents "Calibration and Evaluation of a Dual Layer High Dynamic Range Display for Pathology Detection Tasks" at International Conference on Imaging Technologies in Biomedical Sciences 2009
A two-alternative forced choice experiment was conducted to determine if diagnostic benefits exist when using high dynamic range displays for lesion detection tasks. The potential benefits resulting from both an increased dynamic range and an increased number of displayable just noticeable grayscale differences were evaluated. A custom high dynamic range display system was constructed using an LCD panel and DLP projector. The display, which provides a much larger contrast ratio than available with typical medical LCDs, was calibrated using the DICOM standard and its performance compared with that of an LCD.

Research Projects
Multimodal Breast Imaging
Ultrasound Material Characterization
3D Optical Molecular Imaging
Medical Application of High Dynamic Range Displays
Generation of Synthetic Medical Images
Daguerreotype Imaging

Name Position Phone Email
Dr. María Helguera Faculty 585-475-7053 helguera@cis.rit.edu
Dr. Navalgund Rao Faculty 585-475-7183 rao@cis.rit.edu
Dr. Karl Baum Post Doc 585-475-7263 Karl.Baum@rit.edu
Dr. Benjamin Varela Faculty ME
Kunal Vaidya PhD Candidate kxv6274@rit.edu
Pretti Vaidyanathan PhD Candidate
Todd Fernandez ME graduate student
Christopher Lee McDade ME graduate student
Nick Cox undergraduate student
Allen Greer undergraduate student
Current students who have worked in the lab: Gary Ashton (MS Imaging Science), Natalie Tacconi (BS Imaging Science), Robert Harriagan (BS Imaging Science)
Past Members: Charles Daly (PhD Imaging Science), David Fetzer (BS Imaging Science), Mike Fuller (BS Imaging Science), Di Lai (PhD Imaging Science 2009), Joseph Lawson (BS/MS Mechanical Engineering 2007-2008), Kevin McNamara (high school intern 2007), Jeff Meade (BS Imaging Science), Harold Mendoza (BS Computer Engineering 2007-2008), Gary Menezes (high school intern 2008), Shaynae Moore (BS Mechanical Engineering 2007), Raj Pai Panandiker, Kimberly Rafferty (BS Imaging Science 2005-2008),Robert Rose (MS Imaging Science 2005-2007), Evan Schmidt (high school intern 2006), Dave Shapiro (BS Imaging Science 2008), Stephanie Shubert (BS/MS Imaging Science 2009), Derek Walvoord (PhD Imaging Science 2007-2008), Shawn Welch (high school intern 2009), Denis Zollo (high school intern 2005)