Waterside Mapping in Italy

Integrating 3D Laser Scanning and Side-scan Sonar
The combination of 3D-laser scanning and side-scan sonar can be very beneficial for mapping complicated waterside areas; the two systems are complementary. High-resolution surveys were performed over a two-year period (2005 and 2006) at several locations in Italy, generating a complete and accurate digital model of areas both above and below water level, a result inimitable by any other topographical survey method. The 3D-laser scanner used to scan the areas above water level was an Optech ILRIS while a SEA SWATHplus-H wide swath sonar system was used to collect underwater topography. Both systems generate point-clouds with attributed intensity values, although... (read more)
2007-07-07 12:00:00

Mapping with Mobile Lidar

High Speed, Accuracy and Density
The use of Mobile Lidar systems enters the scene when large areas have to be surveyed at accuracy and resolution exceeding those available through aerial photogrammetry, and when using static Lidar is impractical. The Lynx Mobile Mapper captures high-accuracy, high-density points, allowing easy and precise identification of objects. In 2006 Sineco S.p.A, an Italian engineering firm belonging to the ASTM Group, began collaborating with Optech Incorporated, the Canadian manufacturer of laser-based imaging systems, to develop a mobile Lidar system. The first prototype, ready in early 2007, combined two ILRIS-3D laser scanners with a position-and-orientation system (Applanix POS LV 420). This... (read more)
2009-04-02 12:00:00

Lead Mapping Elf Appointment

The GIS Certification Institute (GISCI) has announced that Harvey Mapstone has been named as a GIS Professional (GISP). Sources within GISCI indicate that Harvey Mapstone is Santa’s lead mapping elf. Mr. Mapstone reportedly manages the GIS team at the North Pole in coordination with NORAD (www.noradsanta.org). Wendy Nelson, GISCI Interim Executive Director for 2009, was unavailable for comment because she was on vacation. Sheila Wilson, GISP and new Executive Director of GISCI, confirmed that Mr. Mapstone was a certified GISP but stated that she could not confirm or deny his employment.   An internet search of Mr. Mapstone's accomplishments showed... (read more)
2009-12-25 12:01:00

Mapping with Digital Cameras

Accuracy and Efficiency Exceed Analogue
Over the period from December 2004 to 2008 the Institut Cartogràfic de Catalunya, Spain, took nearly 200,000 digital aerial images using two Digital Mapping Cameras (DMC) to replace analogue RC30 cameras. We discuss how the shift from analogue to fully digital workflow can improve accuracy and efficiency of production. View Larger Map In its role as overseer of cartographic production in Catalonia, the Institut Cartogràfic de Catalunya (ICC) flies an annual 32,000km2 (approximately 10,000 DMC images) at ground sampling distance (GSD) of 45cm; more than 500km2 at 7.5cm GSD is captured annually, covering urban areas (approximately 15,000 DMC images). Since... (read more)
2009-05-05 12:00:00

Indoor Mobile Mapping Solution

Trimble's Indoor Mobile Mapping System (TIMMS) is a manually operated push-cart designed to accurately model interior spaces without accessing GPS. It consists of 3 core elements: Lidar and camera systems engineered to work indoors in mobile mode, computers and electronics for completing data acquisition, and data processing workflow for producing final 2D/3D maps and models. The models are geolocated, meaning that the real-world position of each area is known. A walk-through of an interior space with TIMMS delivers full 360-degree coverage. The spatial data is captured and georeferenced in real time. Thousands of square feet are mapped in minutes, entire buildings... (read more)
2012-06-28 10:08:03

Traffic Noise Mapping

Modelling Replaces Measuring
Traffic is a common source of noise. Standards for noise pollution have been developed in many countries to safeguard human health and wellbeing. However, regulations may be inadequate in developing countries, where fast urbanisation, industrial growth and traffic increase create environments with hazardous noise levels. In India noise monitoring is done through actual measuring of sound levels at strategic locations. Continual measuring at many locations is, however, costly and unfeasible. Better to combine measurements with noise-propagation models. The authors developed such a method, and the resulting noise maps would seem sufficiently accurate. The sound pressure at any location (receiver) is... (read more)
2010-06-07 02:57:51

European Lidar Mapping Forum

The ELMF team are taking the show to Salzburg, Austria from 29th to 30th November 2011. In four weeks time, since the launch of the second event, old and new exhibitors are taking stands with 60% of the floor plan already allocated. The organisers are also enjoying a very positive response to the Call for Papers that was announced recently with many abstracts already submitted. The deadline for online submission is 25th July 2011. The ELMF conference is a platform on which to launch the latest concepts from commercial or academic research, leading-edge innovations in technologies, improved operating practices, reports... (read more)
2011-06-30 02:39:04

CCTV Mapping System

Cadcorp has launched its CCTV Mapping System. The system provides users in local authorities, emergency services and crime prevention agencies with the tools to manage and share CCTV information in their area. The system has been designed and developed to meet emerging national requirements and standards relating to CCTV information.     The CCTV Mapping System was designed in conjunction with Salford City Council which has been using the technology to help fight crime in the city for the past few months. Based on GeognoSIS, Cadcorp's web mapping engine and utilising a familiar web interface, the system provides a visual... (read more)
2009-04-27 04:07:06

Mapping Competition Deadline Extension

Esri and the Society for Conservation GIS have extended the deadline for the International Conservation Mapping Competition to Friday 18th March. Created in association with Esri and the Society for Conservation GIS (SCGIS) to bring special recognition to those involved in conservation initiatives, the International Conservation Mapping Competition is open to all nonprofit conservation groups and the individuals who support them. A total of USD10,000 in prize money will be awarded.Details regarding the contest can be found at the website below. (read more)
2011-03-08 10:16:47

Mapping the Amazon

Radar X- and P-bands Used to Detect Illegal Logging in Brazil
Geodata collection in tropical regions is difficult because of cloud cover and dense forestation. However, radar signals are able to penetrate clouds, and the P-band can even pass through vegetation foliage. Illustrating this, 1.2 million square kilometres of the Brazilian Amazon have been mapped between 2008 and 2013 using the X- and P-bands. The same radar data also enables detection of illegal logging, monitoring of aquatic plants and estimation of forest biomass. Here, the authors describe the underlying technology and give examples. The remote sensing department of OrbiSAT – acquired by Embraer in 2011 and now rebranded as BRADAR –... (read more)
2014-06-06 10:17:44
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