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Posts Tagged ‘LiDAR’

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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DigitalGlobe’s WorldView-3 launched from Vandenberg today

Wednesday, August 13th, 2014

Today DigitalGlobe of Longmont, Colorado, announced the successful launch of WorldView-3, the company’s sixth and highly advanced high-resolution, super-spectral commercial satellite. From Vandenberg Air Force Base in California, the satellite launched on a Lockheed Martin Atlas V rocket at 11:10 PDT.DigitalGlobeflight

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New indepth coverage for September: Satellite Imaging

Thursday, August 7th, 2014

During the week of September 15th, GISCafe Voice will run a special feature blog on the topic, “Satellite Imaging.”

Geospatial3 (more…)

Conform for real time 3D visualization

Friday, January 10th, 2014

Andrew Tosh, founder of GameSim of Orlando, a 3D visualization and GIS applications used in the gaming and military simulation industries, talked about the plans to expand their product Conform into the GIS market. GameSim is looking at 30% growth (2013). Tosh started the company in 2008 and now they have 33 employess. They will do revenue at $3.7 million this year.

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Intergraph Geospatial 2014 launch

Wednesday, January 8th, 2014

Mladen Stojic, president, Hexagon Geospatial spoke about this week’s launch of Intergraph Geospatial 2014, a comprehensive portfolio of industry-leading technologies.

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USGS commemorates its involvement with GIS on GIS Day

Friday, November 15th, 2013

On November 20th, GIS Day, the USGS will commemorate their commitment to GIS. In spite of all the new technologies for mapping currently, the USGS would like to remind people that for the past 130 years, it has been the primary producer of topographic data for the U.S. and is producing its own new and emerging geospatial technologies and products.

Geologic map of the Holy Cross quadrangle, Colorado

Geologic map of the Holy Cross quadrangle, Colorado.

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Merrick’s Quality Control module automates compliance for LiDAR point cloud datasets

Tuesday, March 5th, 2013

Bill Emison, senior account manager for Geospatial Solutions at Merrick & Company, talked about their new QC module in Version 7.1 MARS (Advanced Remote Sensing Software).

Airborne LiDAR – urban area

Merrick Advanced Remote Sensing (MARS software suite is a comprehensive, production-grade Windows application designed to visualize, manage, process and analyze LiDAR point cloud data.

The Quality Control module is designed to provide an automated tool for verifying compliance of a LiDAR point cloud dataset to the LiDAR Base Specification Version 1.0 from the USGS (U.S. Geological Survey). The application sits on top of MARS as an extension.

“As a data vendor there have been many contracts where we’ve had to comply to those specs, and in an effort to do that effectively, we started to build tools two-three years ago,” said Emison. “We competely automated the entire specs. Our goal is to deliver data one time and not have to do rework, it was important to identify issues before the dataset went out the door.”

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Overwatch releases the 3D viewer, LIDAR Analyst 5.1

Thursday, February 14th, 2013

Skip Maselli, Overwatch vice president of Geospatial Solutions, spoke on their new product LIDAR Analyst 5.1 3D Viewer, for managing LIDAR data with mission-critical high-resolution 3D exploitation.

LIDAR 3D Viewer image showing extracted Seattle downtown with threat dome.

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Flood modeling data with Intermap Digital Elevation Models and Hydrology

Tuesday, July 3rd, 2012

In a webcast presented by Carahsoft, Intermap representatives talked about the fact that they have “the world’s largest 3D terrain database with the one meter LE 90 accuracy and consistency.” LE 90 is a linear air of 90 percent, and is commonly used for quoting and validating DEMs. LE 90 value represents the linear vertical distance of  90 percent of control points, and the respective twin matching counterparts acquired in an independent geodetic survey should be found from each other. For the U.S., which most on this call is interested in, Intermap has mapped the entire lower 48 plus some of Alaska.

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Esri demonstration of using Lidar for situational awareness

Wednesday, April 18th, 2012

At the Esri Federal User Conference 2012, Brett Rose demonstrates how to use lidar and terrain data for surveillance and situational awareness.

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