Dennis Helder
Distinguished Professor Emeritus of Electrical Engineering
Biography
Dr. Dennis Helder has been involved with the characterization and calibration of spaceborne and airborne remote sensing imaging systems for nearly 30 years, and he founded the South 啵啵直播秀 State University Imaging Processing Laboratory in 1990. Initial work focused on characterization and removal of radiometric artifacts of the Landsat TM and MSS sensors. More recent work has emphasized development of vicarious radiometric calibration approaches for a variety of optical remote sensing systems as well as on-orbit point spread function estimation. He is currently associate dean for engineering research and Distinguished Professor of Electrical Engineering at South 啵啵直播秀 State University; he is also on detail to USGS EROS where he serves as director of the EROS CalVal Center of Excellence.
Education
Research and Scholar Work
Publications
- Mishra, N., Helder, D., Barsi, J. and Markham, B. (2016). Continuous calibration improvement in solar reflective bands: Landsat 5 through Landsat 8. Remote Sensing of the Environment, Vol 185, 7-15.
- Pinto, C., Ponzoni, F., Castro, R., Leigh, L., Mishra, N., Aaron, D. and Helder, D. (2016). First in-flight radiometric calibration of MUX and WFI on-board CBERS-4. Remote Sensing, 8(5), 405.
- Mishra, N., Helder, D., Angal, A., Choi, J. and Xiong, X. (2014). Absolute calibration of the optical satellite sensors using Libya 4 pseudo invariant calibration site. Remote Sensing, 6(2), 1327-1346.
- A. Angal, X. Xiong, T. Choi, G. Chander, N. Mishra, D. Helder, Impact of Terra MODIS Collection 6 on long-term trending comparisons with Landsat 7 ETM+ Reflective Solar Bands,鈥 Remote Sensing Letters, Vol. 4, No. 9, 2013.
- D. Helder, K. Thome, N. Mishra, G. Chander, X. Xiong, A. Angal, T. Choi, 鈥淎bsolute Radiometric Calibration of Landsat Using a Pseudo Invariant Calibration Site,鈥 IEEE Transactions Geoscience and Remote Sensing, Vol. 51, No. 13, Mar 2013.
- G. Chander, D. Helder, N. Mishra, A. Shrestha, 鈥淎ssessment of Spectral, Misregistration, and Spatial Uncertainties Inherent in the Cross-Calibration Study,鈥 IEEE Transactions Geoscience and Remote Sensing, Vol. 51, No. 13, Mar 2013.
- G. Chander, N. Mishra, D. Helder, D. Aaron, A. Angal, T. Choi, X. Xiong, D. Doelling, 鈥淎pplications of Spectral Band Adjustment Factors (SBAF) for Cross-Calibration,鈥 IEEE Transactions Geoscience and Remote Sensing, Vol. 51, No. 13, Mar 2013.
- D. Helder, R. Malla, C. Mettler, B. Markham, E. Micijevic, 鈥淟andsat 4 Thematic Mapper Calibration Update,鈥 IEEE Transactions Geoscience and Remote Sensing, Vol. 50, No. 6, pp. 2400-2408, June, 2012.
- D. Helder, S. Karki, R. Bhatt, E. Micijevic, D. Aaron, 鈥淩adiometric Calibration of the Landsat MSS Sensor Series,鈥 IEEE Transactions Geoscience and Remote Sensing, Vol. 50, No. 6, pp. 2380-2399, June, 2012.
- B. Markham, M. Haque, J. Barsi, E. Micijevic, D. Helder, K. Thome, D. Aaron, J. Czapla-Myers, 鈥淟andsat-7 ETM+: 12 Years On-Orbit Reflective-Band Radiometric Performance,鈥 IEEE Transactions on Geoscience and Remote Sensing, Vol. 50, No. 5, pp. 2056鈥2062.
- D. Helder, K. Thome, D. Aaron, L. Leigh, J. Czapla-Myers, N. Leisso, S. Biggar, N. Anderson, 鈥淩ecent surface reflectance measurement campaigns with emphasis on best practices, SI traceability and uncertainty estimation,鈥 Metrologia 49 (2012) S21-S28.
- B. Markham, D. Helder, 鈥淔orty-Year Calibrated Record of Earth Reflected Radiance from Landsat: A Review,鈥 Remote Sensing of the Environment, submitted 2011 (invited paper).
- D. Helder, B. Basnet, D. Morstad, 鈥淥ptimized Identification of Worldwide Radiometric Pseudo-Invariant Calibration Sites,鈥 Canadian Journal of Remote Sensing, July 2011.
