PhD defence by Marta Blázquez: GENA for and from advanced research
On July 3rd, 2012, at the Auditorium of the Institute of Geomatics (IG), Marta Blázquez defended her PhD thesis entitled "A systematic approach to airborne sensor orientation and calibration: method and models." The PhD research was supervised by IG's director Dr. Ismael Colomina.
The goal of the thesis is to establish a methodical basis of a systematic approach to airborne sensor orientation and calibration and to prove its validity with newly-developed models and applications. The thesis, organized as a collection of four peer reviewed papers and two proceeding papers, introduces the concepts of relative aerial control, of spatio-temporal orientation and calibration, of "Fast AT" and of dynamic networks. The contributions of Dr. Blázquez thesis are manifold and fundamental to the field of modern sensor orientation and calibration. The thesis research focused on frame cameras but its potential application scope is much broader, including line cameras, laser scanners and virtually any type of remote sensing data acquisition instrument. GENA stands for "Generic Extensible Network Approach" and is GN's software platform for parameter estimation under the paradigm of network modelling and estimation. GENA was a key tool for Dr. Blázquez research and, at the same time, has benefited from her research.
GENA is a robust non-linear least-squares generic network adjustment engine. With GENA, measurements of geodetic networks, photogrammetric and remote sensing blocks can be adjusted. Observations of different types can be arbitrarily combined into single large adjustments for model-based parameter determination purposes.
Marta Blázquez holds a degree in Applied Mathematics from the Technical University of Catalonia (UPC), a MSc in Airborne Photogrammetry and Remote Sensing from the IG and, now, a PhD in Aerospace Science and Technology from the UPC. She is the holder of the ISPRS XXI Congress Commission I "Best Papers by Young Authors" Award with the paper (Blázquez, 2008). While working at the IG, Dr. Blázquez developed a significant part of the GENA code.
PhD DETAILS
Title: A systematic approach to airborne sensor orientation and calibration: method and models
Author: Dr. Marta Blázquez
Date: 2012-07-03
Organization: Institute of Geomatics (IG) and Technical University of Catalonia (UPC)
Supervisor: Dr. Ismael Colomina
Included papers:
Blázquez,M.,2008. A new approach to spatio-temporal calibration of multi-sensor systems. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. 37 (Part B1), pp. 481–486.
Blázquez,M.,Colomina,I.,2012. Relative INS/GNSS aerial control in integrated sensor orientation: models and performance. ISPRS Journal of Photogrammetry and Remote Sensing, Vol. 67, pp. 120–133.
Blázquez,M.,Colomina,I.,2012. On INS/GNSS-based time synchronization in photogrammetric and remote sensing multi-sensor systems. PFG Photogrammetrie, Fernerkundung, Geoinformation, Vol. 2012 (2), pp. 91–104.
Blázquez,M.,Colomina,I.,2012. Fast AT: A simple procedure for quasi direct orientation. ISPRS Journal of Photogrammetry and Remote Sensing, Vol. 71, pp. 1–11.
Colomina,I.,Blázquez,M.,Navarro,J.A.,Sastre,J.,2012. The need and keys for a new generation network adjustment software. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. 37 (Part B1).
Colomina,I.,Blázquez,M.,2004. A unifed approach to static and dynamic modelling in photogrammetry and remote sensing. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. 35 (Part B1), pp. 178-183.