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Archive for the ‘Leica Geosystems’ Category

Special Coverage: Greater Clarity from Space — Update on Satellite Imagery

Monday, September 15th, 2014

Satellite imagery has undergone a paradigm shift in the past couple of years.

 

Airbus MOJ Tracker

Airbus MOJ Tracker

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NASA needs help from citizen science

Tuesday, August 26th, 2014

A recent CNN report announced thatNASA is asking for the help of citizens in viewing hundreds of thousands of images taken from space over the years, from the 1960s Mercury missions to the present images snapped from the International Space Station.

North Korea is barely lit when juxtaposed with neighboring South Korea and China.
North Korea is barely lit when juxtaposed with neighboring South Korea and China.

Via The Gateway to Astronaut Photography of Earth, NASA is making these images available for citizens to examine.

NASA says the hope is that the images “could help save energy, contribute to better human health and safety and improve our understanding of atmospheric chemistry. But scientists need your help to make that happen.”

The catalog contains more than 1.8 million photos, about 1.3 million of them from the space station and roughly 30% of them taken at night.

 Photos: International Space Station
NASA gets rare view of black hole
NASA tests supersonic parachute for Mars

Tyson on deep space exploration

The CNN report said that before 2003, night images from the space station could be blurry, even with high-speed film and manual tracking, because the station moves at about 17,500 mph. In that same year, astronaut Don Pettit used a drill and assorted parts he found on the station to cobble together a “barn-door tracker,” a lower-tech predecessor to the European Space Agency’s NightPod, which was installed at the space station nine years later.

According to the report, NightPod’s motorized tripod compensates for the space station’s speed, providing what NASA scientist William Stefanov says are the highest-resolution night images from orbit. Satellites collect data more regularly, but the photos tend to be lower resolution. “Now the pictures are clear, but their location may not be, which limits their usefulness,” the NASA news release says.

Citizen science has a better handle on location than the night images from the space station and satellite imagery. The Complutense University of Madrid is spearheading efforts to get citizen input and organize the photos.  They have broken down the  the images into three components requiring different levels of participation:

1. Dark skies. This is the easiest project, as it requires no scientific expertise. “Anyone can help” by sorting the images into the categories: cities, stars or other objects, said Alejandro Sanchez, doctoral student at Complutense.

“Without the help of citizens, it is almost impossible to use these images scientifically. Algorithms cannot distinguish between stars, cities and other objects, such as the moon. Humans are much more efficient for complex image analysis,” he said.

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GIS companies embrace integration with Building Information Modeling workflows and field layout

Friday, June 20th, 2014

Since last year,  traditional GIS positioning companies such as TopCon, are getting into the act of providing integration of Building Information Modeling workflows and field layout with their recent collaboration with Autodesk.  This collaboration involves an Autodesk BIM 360 app for iPad to make it easier to locate BIM coordinates precisely on a construction site. Designed for general contractors and MEP professionals, the app controls a robotic total station and the LN-100 3D positioning system from Topcon. As-built data can be fed back into the design model via BIM 360 for quality assurance. Topcon was traditionally considered a geospatial company but they have extended their reach into many other industry segments now, including the area of BIM.

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