Dr. Terrence S. Lomheim
Distinguished Engineer
SPIE Involvement:
Conference Program Committee | Author | Instructor
Area of Expertise:
CMOS Imagers , EO System performance modeling , CCD Imagers , Infrared focal planes , Hyperspectral Image Sensors , Sensor and focal plane noise modeling
Profile Summary

Dr. Terrence S. Lomheim, is a Distinguished Engineer in the Sensor Systems Subdivision, Engineering and Technology Group of The Aerospace Corporation. For the past 45 years he has performed detailed experimental evaluations of the electro-optical properties, imaging capabilities, and radiation-effects sensitivities of infrared and visible focal plane devices, and has been involved in the development of modeling tools used to predict instrument-level performance for advanced DoD and NASA visible and infrared point-source and imaging sensor systems. He regularly performs design synthesis, trade studies and evaluations of imaging, multispectral / hyperspectral, and overhead persistent infrared (OPIR) sensor systems with an emphasis on the leverage that advanced digital focal plane technology provides. Dr. Lomheim has authored and coauthored 72 publications in the areas of visible and infrared focal plane technology, sensor design and performance, and applied optics. He received the Ph.D. in Physics from the University of Southern California in 1978. He is a part-time instructor in the physics department at California State University, Dominguez Hills, and regularly teaches technical short courses for the International Society for Optical Engineering (SPIE) and for the UCSB and UCLA Extension programs. He is a Fellow of the SPIE (International Society for Optical Engineering) and a Fellow of the MSS (Military Sensing Symposia). He a co-author of the book entitled, “CMOS/ CCD Sensors and Camera Systems, 2nd Edition”, published by JCD and the SPIE Press in 2011.
Publications (30)

Proceedings Article | 7 September 2011 Paper
Stephen Cota, Terrence Lomheim, Christopher Florio, Jeffrey Harbold, B. Michael Muto, Richard Schoolar, Daniel Wintz, Robert Keller
Proceedings Volume 8158, 81580G (2011) https://doi.org/10.1117/12.892808
KEYWORDS: Sensors, Systems modeling, Diffusion, Staring arrays, Near field, Photons, Modulation transfer functions, Absorption, Thermography, Remote sensing

SPIE Press Book | 29 April 2011
KEYWORDS: Sensors, Modulation transfer functions, Cameras, Imaging systems, Charge-coupled devices, Signal to noise ratio, Neodymium, Video, Optical filters, Spatial frequencies

SPIE Journal Paper | 1 June 2010
Stephen Cota, Jabin Bell, Richard Boucher, Tracy Dutton, Christopher Florio, Geoffrey Franz, Thomas Grycewicz, Linda Kalman, Robert Keller, Terrence Lomheim, Diane Paulson, Timothy Wilkinson
JARS, Vol. 4, Issue 01, 043535, (June 2010) https://doi.org/10.1117/12.10.1117/1.3457476
KEYWORDS: Sensors, Image quality, Signal to noise ratio, Reflectivity, Imaging systems, Sun, Image resolution, Image analysis, Modulation transfer functions, Spatial frequencies

SPIE Journal Paper | 1 June 2010
JARS, Vol. 4, Issue 01, 043537, (June 2010) https://doi.org/10.1117/12.10.1117/1.3355378
KEYWORDS: Image resolution, Staring arrays, Imaging systems, Optical transfer functions, Image analysis, Sensors, Satellites, Image enhancement, Systems modeling, Image registration

Proceedings Article | 21 August 2009 Paper
Proceedings Volume 7405, 74050Q (2009) https://doi.org/10.1117/12.828311
KEYWORDS: Modulation transfer functions, Imaging systems, Diffusion, Metals, CMOS sensors, Sensors, Signal to noise ratio, Confocal microscopy, Microscopes, Electronics

Showing 5 of 30 publications
Proceedings Volume Editor (1)

SPIE Conference Volume | 14 September 1998

Conference Committee Involvement (47)
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXVI
13 April 2025 | Orlando, Florida, United States
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXV
23 April 2024 | National Harbor, Maryland, United States
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIV
3 May 2023 | Orlando, Florida, United States
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII
6 April 2022 | Orlando, Florida, United States
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXII
12 April 2021 | Online Only, Florida, United States
Showing 5 of 47 Conference Committees
Course Instructor
SC194: Multispectral and Hyperspectral Image Sensors
This course will describe the imaging capabilities and applications of the principal types of multispectral (MS) and hyperspectral (HS) sensors. The focus will be on sensors that work in the visible, near-infrared and shortwave-infrared spectral regimes, but the course will touch on longwave-infrared applications. A summary of the salient features of classical color imaging (human observation) will also be provided in an appendix.
SC068: Use of CCD and CMOS Sensors in Visible Imaging Applications
This course will describe the imaging capabilities of visible sensors and illustrate their use with examples as varied as satellite imaging and commercial color scanning applications. The methodology for configuring and specifying a visible imaging system will be described, including the role of charge-coupled device (CCD), and complementary metal-oxide-silicon (CMOS) focal plane technologies.
SC503: Use of Visible and Infrared Sensors in Astronomy Applications
This course will describe the principles, imaging capabilities, and key technologies of visible and infrared image sensors and illustrate their use in ground and space-based astronomy applications. Ground-based and space-based astronomy instrument configurations will be described and analyzed to illustrate the interaction and optimization of the various image chain subsystems including the impact of the application of advanced sensor technologies.
SC557: Use of CCD and CMOS Sensors in Visible Imaging Applications
This course will describe the imaging capabilities of visible sensors and illustrate their use with examples as varied as a commercial color scanning Telecine application and multispectral satellite imaging. The methodology for configuring and specifying a visible imaging system will be described, including the role of charge-coupled device (CCD), and complementary metal-oxide-silicon (CMOS) focal plane technologies.
SC528: Color Imaging with Visible Image Sensors
This course describes the principles, key technologies, and applications of color imaging using visible image sensors (CCD, CMOS). It briefly overviews the theory of human color perception; discusses the relevant television-based standards which apply to broadcast color video signals; discuss the evolution of color CCD and CMOS camera architectures and associated analog and digital signal processing techniques including those used to process color-filter array video signals; overview imager technology basics for digital still camera applications, and review the MPEG compression standard for High Definition Television.
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