All posts by Juan B. Plaza

In the early 1990s our attempts to eliminate ground control were by establishing a fixed base at the airport and a rover on the plane. Using post-processing software, we were able to add precise coordinates to each photograph.

We Are Aviators First

With UAS, surveyors are becoming aviators. As we adopt new technology, we should heed old advice. I flew my first photogrammetric mission in the early 1980s while I was completing my geodesy degree during tumultuous times at my alma mater. While the rest of the world had disco fever, students at Universidad Central de Venezuela...

Exceeding the Limits

Forensic survey technology is now a need rather than a luxury as Latin America’s urban concentration accelerates. For decades the art and science of determining how a crime was commit-ted and how a car crash occurred has relied on expert hypotheses based on personal experience and memory. Experts have used tape measures, cameras, and paper...

All Over the Map

The regulations and uses of UAVs for mapping in Latin America are as diverse as those cultures, but their drivers are much the same as we see here in the United States. Using manned airplanes for aerial photography and photogrammetry is an especially expensive proposition for countries south of the Rio Grande. The reasons are...

What’s ROI?

In 2008 after a nine-year run selling GIS software, it was time for me to move on. I received an offer to head the western region sales team for a GPS company competing in the difficult fleet management market. This career move was based on my belief that GPS applications have a lot in common...

Aerial Imaging in Antarctica

It was quite an adventure: an all-or-nothing mission to map a research station in Antarctica. Like numerous countries around the world, Ecuador’s mapping agency, Instituto Geografico Militar (National Military Geographic Institute of Ecuador or IGM), is a technical institution within the country’s military establishment. The IGM is responsible for developing the national mapping and the geographic...