Charles Bachmann Headshot

Charles Bachmann

Wiedman Professor

Chester F. Carlson Center for Imaging Science
College of Science

585-475-7238
Office Location

Charles Bachmann

Wiedman Professor

Chester F. Carlson Center for Imaging Science
College of Science

Education

AB, Princeton University; Sc.M., Ph.D., Brown University

Bio

Charles M. Bachmann received the A.B. in physics from Princeton University (1984) and the Sc.M. (1986) and Ph.D. (1990) in physics from Brown University. He was a research physicist (1990-2013) at the Naval Research Laboratory, serving as Head of the Coastal Science and Interpretation Section in the Remote Sensing Division (2003 - 2013).  From 2012-2013, through the US Navy Engineer and Scientist Exchange Program, he was at the Defence Science Technology Organisation (DSTO) Maritime Division, Sydney, Australia.  In 2013, he joined the faculty of the Rochester Institute of Technology (RIT) Chester F. Carlson Center for Imaging Science (CIS) as the Frederick and Anna B. Wiedman Chair. Since 2016, he has also served as CIS Graduate Program Coordinator.  His research focuses on hyperspectral remote sensing of coastal and desert environments, BRF and radiative transfer modeling for retrieval of geophysical and biophysical parameters, field calibration and validation, the development of advanced instrumentation (goniometers), as well as abstract models for interpreting hyperspectral and multi-sensor imagery based on manifold descriptions and graph theory.  He holds two U.S. Patents for methods of analysis related to hyperspectral remote sensing imagery

585-475-7238

Areas of Expertise

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Journal Paper
Badura, Gregory P., et al. "A Novel Approach for Deriving LAI of Salt Marsh Vegetation Using Structure from Motion and Multi-Angular Spectra." IEEE Journal of Selected Topics In Applied Earth Observations And Remote Sensing 12. 2 (2019): 599-613. Web.
Badura, Greg and Charles M. Bachmann. "Assessing Effects of Azimuthally Oriented Roughness on Directional Reflectance of Sand." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 12. 3 (2019): 1012-1025. Print.
Badura, Gregory, et al. "Observed Relationship Between BRF Spectral-Continuum Variance and Macroscopic Roughness of Clay Sediments." IEEE Transactions on Geoscience and Remote Sensing 57. 9 (2019): 6726-6740. Print.
Eon, R. S., et al. "Retrieval of Salt Marsh Above-ground Biomass From High-spatial Resolution Hyperspectral Imagery Using PROSAIL." Remote Sensing 11. 11 (2019): 1385. Web.
Eon, Rehman S., Charles M. Bachmann, and Aaron Gerace. "Retrieval of Sediment Fill Factor by Inversion of a Modified Hapke Model Applied to Sampled HCRF from Airborne and Satellite Imagery." Remote Sensing 10. 11 (2018): 1758. Web.
Bachmann, Charles M., et al. "A Low-Rate Video Approach to Hyperspectral Imaging of Dynamic Scenes." Journal of Imaging 5. 1 (2018): 6. Web.
Bachmann, Charles M., et al. "Modeling and intercomparison of field and laboratory hyperspectral goniometer measurements with G-LiHT imagery of the Algodones Dunes." Journal of Applied Remote Sensing 12. 1 (2017): 012005-1 - 012005-20. Web.
McCorkel, Joel, et al. "An overview of the 2015 Algodones Sand Dunes field campaign to support sensor inter-calibration." Journal of Applied Remote Sensing 12. 1 (2017): 012003-1 - 012003-11. Web.
Bachmann, Charles M., et al. "Wavelength dependence of the bidirectional reflectance distribution function (BRDF) of beach sands." Applied Optics 54. 31 (2015): F243--F255. Print.
Bachmann, Charles M., et al. "A flexible goniometer system: The Goniometer for Outdoor Portable Earth Reflectance (GOPHER)." Submitted to Journal of Applied Remote Sensing. (2015): --. Print.
Bachmann, Charles M., et al. "Soil signature simulation of complex mixtures and particle size distributions." Optical Engineering 54. 9 (2015): 094103-1--094103-10. Print.
Bachmann, Charles M., et al. "A Flexible Goniometer System: The Goniometer for Outdoor Portable Earth Reflectance (GOPHER)." Optics Express. (2014): --. Print.
Bachmann, Charles M., et al. "Phase Angle Dependence of Sand Density Observable in Hyperspectral Reflectance." Remote Sensing of Environment 150. (2014): 53--65. Print.
Published Conference Proceedings
Bachmann, Charles M. and Reid Nichols. "Hyperspectral Imager for Updated Littoral Situational Awareness (HULA)." Proceedings of the NOAA Emerging Technologies Workshop. Ed. NOAA. College Park, MD: NOAA Emerging Technologies Workshop 2019 Report, 2019. Web.
Tyler, Anna C., et al. "Addressing High Spatial Heterogeneity in Salt Marsh Primary Production Using High Resolution Remote Sensing." Proceedings of the AGU Fall Meeting. Ed. AGU. Washington, DC: AGU, 2018. Web.
Bachmann, Charles M. "A Next Generation Field-portable Goniometer System." Proceedings of the SPIE Defense and Security 2016. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "How Many Spectral Bands are Necessary to Describe the Directional Reflectance of Beach Sands?" Proceedings of the SPIE Defense and Security 2016. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "Retrieval of Sediment Fill Factor from Hyperspectral BRDF Measurements of Coastal Sediments." Proceedings of the SPIE Defense and Security 2016. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "Schrodinger Eigenmaps for Semi-supervised Manifold Alignment of Hyperspectral Imagery." Proceedings of the SPIE Defense and Security 2016. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "Improved Modeling of Multiple Scattering in Hyperspectral BRDF of Coastal Sediments Observed Using the Goniometer of the Rochester Institute of Technology (GRIT)." Proceedings of the Imaging Spectrometry XX. San Diego, California: SPIE, 2015. Print.
Bachmann, Charles M. "Influence of Density on Hyperspectral BRDF Signatures." Proceedings of the SPIE Defense and Security 2015. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "Modeling and Mitigating Noise in Graph and Manifold Representations of Hyperspectral Imagery." Proceedings of the SPIE Defense and Security 2015. Baltimore, Maryland: SPIE, 2015. Print.
Bachmann, Charles M. "Modeling and Mitigating Noise in Graph and Manifold Representations of Hyperspectral Imagery." Proceedings of the SPIE Defense and Security 2015. Baltimore, Maryland: SPIE, 2014. Print.
Bachmann, Charles M. "Influence of Density on Hyperspectral BRDF Signatures." Proceedings of the SPIE Defense and Security 2015. Baltimore, Maryland: SPIE, 2014. Print.
Bachmann, Charles M. "Retrieval of Sand Density from Hyperspectral BRDF." Proceedings of the SPIE Defense and Security 2014. Baltimore, Maryland: SPIE, 2014. Print.
Peer Reviewed/Juried Poster Presentation
Eon, Rehman S., et al. "Improving Accuracy of Salt Marsh Aboveground Biomass using High-Spatial Resolution, Multi-View Hyperspectral Imaging Systems." Proceedings of the AGU Fall Meeting. Ed. AGU. Washington, DC: AGU.
Goldsmith, Sarah, et al. "Assessing Salt Marsh Vulnerability Potential Through the use of High Resolution Hyperspectral Imagery." Proceedings of the AGU Fall Meeting. Ed. AGU. Washington, DC: AGU.

Currently Teaching

IMGS-791
0 Credits
Continuation of Thesis
IMGS-799
1 - 4 Credits
This course is a faculty-directed tutorial of appropriate topics that are not part of the formal curriculum. The level of study is appropriate for student in their graduate studies.
IMGS-890
1 - 6 Credits
Doctoral-level research by the candidate on an appropriate topic as arranged between the candidate and the research advisor.
IMGS-790
1 - 6 Credits
Masters-level research by the candidate on an appropriate topic as arranged between the candidate and the research advisor.
IMGS-891
0 Credits
Continuation of Thesis
IMGS-619
3 Credits
This course is focused on the fundamentals of radiation propagation as it relates to making quantitative measurements with imaging systems. The course includes an introduction to common radiometric terms and derivation of governing equations with an emphasis on radiation propagation in both non-intervening and turbid media. The course also includes an introduction to detector figures of merit and noise concepts.
IMGS-719
3 Credits
This course is the first course in a two-semester course sequence that covers the theory of radiative transfer in disordered media. The course begins with a brief review of basic electromagnetism and models for scattering and absorption by single particles and progresses to the theory of radiative transfer in semi-infinite media. Various approximations that allow closed-form solutions are presented, and related phenomenology, such as the shadow-hiding opposition effect and coherent backscatter opposition effects, are described in terms of these models.
IMGS-720
3 Credits
This course covers advanced topics related to the theory of radiative transfer in disordered media. The course begins with a review of topics presented in the first semester course, including the radiative transfer solutions due to Hapkeā€™s solution for a semi-infinite medium and the opposition effect. Students will complete a project focused on one or more advanced topics related to radiative transfer in disordered media, such as effects of surface roughness, scattering in layered media, oriented scattering layers, more advanced treatments of multiple scattering or polarization, or radiative transfer in the water column.