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1. Numerical, benchtop, and in vivo phantoms for hyperspectral imaging of ischemic wounds
Published: 5/14/2015
Authors: David W Allen, Jeeseong Hwang, Maritoni Abatayo Litorja, Joseph Paul Rice
Abstract: Biomedical optical imaging has the potential to achieve high spatial resolution and high functional sensitivity for non-invasive assessment of ischemic wounds. However, clinical acceptance of many optical imaging devices is hampered by poor repro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910922

2. Results of aperture area comparisons for exo-atmospheric total solar irradiance measurements
Published: 11/13/2013
Authors: Bettye C Johnson, Maritoni Abatayo Litorja, Joel B. Fowler, Eric L Shirley, James J Butler, Robert A Barnes
Abstract: Exo-atmospheric solar irradiance measurements made by the solar irradiance community since 1978 incorporate limiting apertures with diameters measured by a number of metrology laboratories using a variety of techniques. Knowledge of the aperture are ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913537

3. Hyperspectral Image Segmentation of the Common Bile Duct
Published: 3/8/2013
Authors: Daniel Victor Samarov, Eleanor Wehner, Roderich E Schwarz, Karel Zuzak, Edward Livingston, Maritoni Abatayo Litorja
Abstract: Over the course of the last several years hyperspectral imaging (HSI) has seen increased usage in biomedicine. Within the medical field in particular HSI has been recognized as having the potential to make an immediate impact by reducing the risks an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914700

4. Algorithm Validation Using Multicolor Phantoms
Published: 5/9/2012
Authors: Daniel Victor Samarov, Matthew Lawrence Clarke, Ji Y. Lee, David W Allen, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: We present a framework for hyperspectral image (HSI) analysis validation, specifically abundance fraction estimation based on HSI measurements of water soluble dye mixtures printed on microarray chips. In our work we focus on the performance of tw ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911285

5. Designing Microarrays Phantoms for Hyperspectral Imaging Validation
Published: 5/9/2012
Authors: Matthew Lawrence Clarke, Ji Y. Lee, Daniel Victor Samarov, David W Allen, Maritoni Abatayo Litorja, Ralph Nossal, Jeeseong Hwang
Abstract: The simple design of custom-tailored microarrays for the characterization of hyperspectral imaging systems and analysis methods for biologically relevant samples. Individual and mixtures of dyes were printed on microscope slides and imaged by a hyper ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910877

6. Hyperspectral Image Projector Applications
Published: 2/15/2012
Authors: Joseph Paul Rice, Steven W Brown, David W Allen, Howard W Yoon, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: For the past several years NIST has been developing, along with several collaborators, a Hyperspectral Image Projector (HIP). This scene projector produces high-resolution programmable spectra and projects them into dynamic two-dimensional images ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910575

7. Validating the LASSO Algorithm by Unmixing Spectral Signatures in Multicolor Phantoms
Published: 2/1/2012
Authors: Daniel Victor Samarov, Matthew Lawrence Clarke, Ji Y. Lee, David W Allen, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: As hyperspectral imaging (HSI) sees increased implementation into the biological and medical fields it becomes increasingly important that the algorithms being used to analyze the corresponding output be validated. While certainly important under any ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910459

8. Hyperspectral Imaging and Analysis of Single Erythrocytes
Published: 8/12/2011
Authors: Ji Y. Lee, Matthew Lawrence Clarke, Fuyuki Tokumasu, John F. Lesoine, David W Allen, Robert C. Chang, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: We report a hyperspectral imaging and analysis technique to resolve unique physico-chemical characteristics of subcellular substances in single erythrocytes. We constructed a microscope system installed with a spectral light engine capable of contr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908693

9. Characterization of Hyperspectral Imaging and Analysis via Microarray Printing of Dyes
Published: 2/22/2011
Authors: Matthew Lawrence Clarke, Maritoni Abatayo Litorja, David W Allen, Daniel Victor Samarov, Jeeseong Hwang
Abstract: The application of hyperspectral imaging requires rigorous characterization of the spatial and spectral imaging domains of the system. We present a microarray printing methodology for the testing of absorption or reflectance microscopy measurements. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907788

10. Low-Cost, High-Throughput, Automated Counting of Bacterial Colonies
Published: 1/5/2010
Authors: Matthew Lawrence Clarke, Robert L Burton, A. Nayo Hill, Maritoni Abatayo Litorja, Moon H. Nahm, Jeeseong Hwang
Abstract: Research involving bacterial pathogens often requires enumeration of bacteria colonies. Here we present a low-cost, high-throughput colony counting system consisting of colony counting software and a consumer-grade digital camera or document scanner ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904106



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