RESEARCH LINES

My current research activity has three main orientations or lines:

Data

There are many data types which encourage work and research:

• spatial stereoscopic imaging (spatial photogrammetry)
• laser scanners (close-range photogrammetry)
• LIDAR (aerial photogrammetry)

Surely spatial photogrammetry was born when using stereoscopic images from satellites could be achieved. This did not materialize until the launch of the SPOT series in 1986. Since then, different satellites that collect this data type (stereoscopic) have emerged, enabling work with photogrammetry. The comparison and analysis of the potential of these data (spatial stereoscopicimaging, laser scanners and LIDAR) constitute one main research line, among others, in which we work.

Accuracy data

The correct knowledge of the data accuracy is very important to exploit data successfully. The analysis of the positional accuracy and reliability of the results generated by these data (spatial stereoscopic images or laser scanners) is another main research line.

Methodologies

Finding new methods to exploit these data and to measure the positional accuracy of the results generated (orthoimages and digital elevation models, DEMs) opens new lines of work. Some of these lines are:

1. A new methodology of stereo-matching called multispectral stereo matching.
2. A method to classify multi-spectral satellite images based on multivariate adaptive regression splines (MARS) and to compare this classification system with the more common parallelepiped and maximum likelihood (ML) methods.
3. A new methodology to control the positional accuracy of geometric corrections satellites with a more complete analysis than that of current standards circular statistics).