Survey Accuracy

Furthering Dialogue on ‘Towards Cadastre 2034’

Renewed debate on the nature and role of the cadastre was sparked in 2010 through the forums of FIG 2010 in Sydney, Australia, and GIM International. Six design elements for ‘future cadastres' were discussed, one of them being ‘survey accuracy'. The wide range of responses regarding this design element implied that the topic required further clarification. Here, we hope to provide such clarification and further the dialogue on ‘Towards Cadastre 2034'. The six design elements proposed to the FIG 2010 forum were: ‘survey accuracy'; the move towards property objects; implementation of 3D and 4D aspects; ability for real-time updates;... (read more)

2011-11-09 02:53:00

EuroSDR Survey

Oblique Airborne Photogrammetry: Users' and Vendors' Views

Today, oblique airborne images are a powerful source of geodata, particularly for applications in urban areas. Although the cost of capturing is higher, object identification and creation of dense 3D point clouds is easier and more reliable compared to conventional vertical imagery. To better understand the current practice and possible user needs, the EuroSDR initiated a survey on the use and expectations of obliques. The questionnaire went online in spring 2014 and was targeted at both users and providers of hardware, software and services. Here, the authors summarise the key findings from the survey. In recent years, aerial multi-camera systems... (read more)

2014-12-23 11:47:33

CG-Survey 9 and CG-Survey Released

Carlson Software has released CG-Survey 9 and CG-Survey 18, featuring hundreds of improvements to help speed and ease the work of land surveyors. CG, which was founded in 1978, has been a division of Carlson Software since 2001. Among the top new features of these newest versions of CG-Survey - either for the AutoCAD version, CG-Survey 18, or for CG-Survey 9 with AutoCAD on board - are their VISTA and AutoCAD 2008 compatibility, deed reader, point manager, all new lot labeling routines, shrinkwrap, enhanced CG symbol editor, and new polyline tools. In addition, users get the ability to create 3D... (read more)

2008-01-04 11:17:19

Product Survey GNSS Receivers

In contrast to that of 2005, this product survey on GNSS receivers does not reveal any remarkable technological break-throughs. Manufacturers are increasingly producing systems able to receive Navstar, Glonass and even Galileo signals. This year we have replaced the term GPS (Global Positioning System) by GNSS, because GNSS (Global Navigation Satellite System) better describes the significance and use of these receivers. From providing only position (where am I?) the receivers have evolved into real navigation systems (how do I get to get where I want to go?) The receivers listed here represent the high-end segment of a pyramid-shaped market. Like... (read more)

2006-09-21 12:00:00

Product Survey on DPW

The capabilities of the software systems listed differ a lot, and end-user scope and intended types of applications are the decisive elements in their choice. Although many photogrammetric projects are still flown with analogue cameras, as soon as the film is developed it is scanned to transform grey and colour tones into pixels, so enabling a complete digital workflow. In our previous product survey (March 2005) we were able to conclude that the photogrammetric workflow had definitely become digital, enabling automation of such tasks as aerotriangulation, creation of Digital Elevation Models (DEM) and production of orthoimages. As a result, DPWs... (read more)

2007-11-16 09:58:34

Partner in Airborne Survey

ASTEC GmbH, Germany, is a private company specialising in airborne data collection and derived products. In late 2006 ASTEC GmbH took over business, equipment and staff from Terra Digital GmbH to continue and enlarge the already established business.<P> ASTEC employs about twenty professionals in sales, marketing, data capture and processing. Our know-how includes the operation of airborne survey, digital photogrammetry, airborne Lidar, and GIS, and our main products are digital orthoimagery (standard and true) and Lidar Digital Elevation Models (DEM). Our vision is to support clients in finding solutions to meet their needs, and we try hard to keep in... (read more)

2008-06-05 12:00:00

Geospatial Data Quality Survey

The OGC (MD, USA) Technical Committee's Spatial Data Quality Working Group (WG) has been gathering information and requirements from OGC members for the past year and has now begun primary research on spatial data quality measures. Their survey on spatial data quality went live on Monday 15th October, targeting thousands of geospatial data suppliers and users from around the world. The group seeks to develop an interoperable framework or model for OGC Quality Assurance Web Services that will enable improved access and sharing of high quality geospatial information. To achieve this goal it is necessary to learn what organisations mean... (read more)

2007-10-18 09:29:26

Aerial Survey Tender Greece

Infoterra France and their Greek partner GEOMET Ltd have won a major contract, worth over €2.86 million, to deliver a significant quantity of fully orthorectified imagery and Digital Surface Models (DSM) covering Greek cities. The 18 month long project, which is the biggest venture of this type ever undertaken in Europe, kicked off with ADS40 linear scanners capturing images from June to end August 2007, followed by an initial delivery in October 2007. Final delivery will take place in September 2008. The VLSO or ‘Very Large Scale Orthophoto project', will cover 3500 square kilometres of all major to mid-size Greek... (read more)

2007-11-06 01:50:29

Maputo Base Map Survey

Getmapping in partnership with Geosense, ESRI South Africa and Precision Surveys has recently completed a 500sq km aerial survey of Maputo and its environs including the islands Xefina and Inhaca. The survey was commissioned by the Municipal Council of Maputo to create a new base map for the city's new geographic and management information systems. Maputo is a port on the Indian Ocean, the capital and largest city of Mozambique. A thriving manufacturing and export centre, Maputo's infrastructure is under considerable pressure from rapid population growth fuelled by internal migration from traditional rural farming areas. With existing geographic maps and... (read more)

2010-10-19 11:56:05

Trimble Enhances Survey Solutions

Trimble used Intergeo to introduce further enhancements to its complete surveying portfolio as part of its Connected Site solutions: new models of the Trimble S8 Total Station with options for monitoring and tunneling applications; a new version of Trimble Business Center; a scalable Trimble VX Spatial Station and improved field to office solutions for German surveyors. These positioning solutions add even greater flexibility to a user's surveying needs, providing seamless and streamlined workflow for all phases of surveying. Trimble S8 Total Station Models The Trimble S8 Total Station models and Trimble 4D Control software create a solution... (read more)

2008-10-01 11:06:39