In separate projects, tech firms acquire images, data that have a range of possible uses in fitness, business, civic planning
Arizona State University has been more of a tech hub than ever, with tricked-out cars cruising under the Tempe campus' University Bridge while young men nearby lug gadget-heavy backpacks past Old Main.
In separate projects, Uber and Google have been mapping a school that has become known for jet packs, robot swarms and NASA missions.
Uber’s work involves self-driving cars with sensors and gadgets on the roof of a small SUV that otherwise don’t give any indication of what makes them unique on Tempe roads. The cars have a human behind the wheel.
Google, meanwhile, is expanding its Street View feature, capturing close-up images of all of ASU’s campuses. The feature on Google Earth and Google Maps allows users to zoom in and see accurate depictions of buildings and sidewalks, anything a pedestrian could see walking down the street.
Each relies on mapping technology that seems poised to expand.
“It is quite an amazing system,” said Stewart Fotheringham, a professor of computational spatial science in the School of Geographical Sciences and Urban Planning. Fotheringham teaches a class called Geographic Info Technologies (GIS 205), which introduces students to modern geographic information technologies, including cartography, GIS, remote sensing, global positioning systems and statistical analyses.
He explained how the technology works.
“The video recorders Google people carry around with them record 360 degrees and are linked to the U.S. GPS satellite system, which consists of 24 active satellites about 12,000 miles above the Earth,” Fotheringham said. “Distances to four or more of these satellites give location on the Earth, plus elevation, so when you type an address into Google Earth, it looks up the coordinates of this location in a huge database and retrieves the imagery associated with this location.”
The imagery consists of satellite photographs and pictures taken from planes for Google Earth. Video recordings are taken by people on foot or bike and by cameras mounted to cars for Google Street View.
Andrew Ortiz is one of the field operators who troops around under the weight of a nearly 70-pound pack to get the shots the technology relies on. He and Daniel Quach took turns under the Google Street View Trekkers, a backpack outfitted with a camera system that’s used where vehicles can’t go.
It can be a tough task. “Our tolerance has been building,” he said. “I could probably walk about 2½ miles (before taking a break.)”
Google’s field operators worked around Tempe campus on March 6, starting in the middle of an area and walking out in concentric circles snapping pics with about a dozen cameras on a ball array at the top of their packs. In a mile the array will take about 500 to 600 shots, according to Ortiz.
Before coming to ASU, Google personnel worked with the university to come up with a priority list. They will shoot interiors in certain buildings, like ASU Gammage, but not every building on campus.
Uber cars have rolled past the Frank Lloyd Wright-designed Gammage and ASU’s School of Music, affectionately known as the “birthday cake building,” and the Ira A. Fulton Schools of Engineering countless times since their program introducing the vehicles to the Valley began in February.
Driverless cars need far more detailed digital maps than cameras and radar alone can provide, and Uber is recording every curb, stop sign and building to ensure their system works effectively. The cars include a pair of engineers in the front seats as safety drivers, according to a report in the tech-focused publication The Verge.
Arizona Gov. Doug Ducey has hailed Uber’s self-driving pilot, releasing a statement saying his state’s participation “is paving the way for new technology and new businesses.”
The emerging mapping technology has a range of uses and applications.
“It's used by Realtors and house buyers, in in-car navigation systems, and by planners,” Fotheringham said.
Google, for example, takes a constellation of images that anyone could access from GPS satellites, then applies 360 camera technology and manages the the logistics of capturing video imagery on every road and street it can access, Fotheringham said.