Laser Scanning Technology Challenged

Shortcomings in Spatial Documentation of Heritage Sites
In this month’s Insider’s View Prof. Heinz Rüther puts some critical points on the shortcomings of laser-scanning technology in the spatial documentation of heritage sites. We invited manufacturers of laser-scanning sensors and software to comment on his challenging observations. Nearly 70% of the companies responded (ten in total) and seven felt qualified to reply: Optech, Riegl, Leica Geosystems, 3rd Tech, Visual Learning Systems, TopoSys and I-SiTE 3D Laser Imaging. We thank all respondents for their time and effort. Critical observations made by Prof. Heinz Rüther include the following. (1) The processing time of laser-scan data can be up to ten... (read more)
2007-02-23 12:00:00

UAS for Mapping

A Product Survey on Systems and Features
In recent years, unmanned aerial systems (UAS) have attracted tremendous attention from surveyors and other geodata collectors all around the world. Nowadays, UAS equipped with GNSS, IMU and RGB, NIR or TIR cameras and possibly Lidar have evolved into high-potential surveying devices which have now definitely passed the stage of ‘toys for boys’. This article focuses on UAS for mapping and 3D modelling and provides a detailed survey in tabular format on the features of the prevailing systems, both fixed wings and multicopters, available on the market today An unmanned aerial system (UAS) is an aircraft which flies without a... (read more)
2017-07-26 03:17:00

The Relevance of Aerial Mapping in 2019 and Beyond

Modern Mapping Systems and Techniques
Reality 3D models, Lidar points clouds, superhigh-resolution aerial imagery and artificial intelligence from aerial imagery… these are just a few of the products derived from aerial mapping that the GIS sector takes for granted in 2019. Despite the plethora of high-resolution Earth observation satellites and the exponentially increasing impact of unmanned aerial vehicles (UAVs or 'drones') on the aerial mapping sector, most large and medium-scale ‘topographic’ or GIS map data is still derived from manned aircraft, whether fixed-wing or rotary. But the multitude of systems and processes can make selecting the correct aerial mapping technology a complicated and confusing process.... (read more)
2019-04-12 11:38:08

Nigeria Needs Federal Commitment to its Geodata Policy

GIM International Interviews Jide Kufoniyi
Nigeria has all the prerequisites to install an effective national geospatial data infrastructure (NGDI) from which all its 170 million inhabitants would benefit. The country has many educated professionals, a national policy concept, money, lots of projects, more and more data, etc. But what is missing is the will to make a conscious effort to implement an NGDI in order to facilitate coordination of the geospatial resources and provide easy access to data such as Earth observation images. So says Jide Kufoniyi, president of the African Association of Remote Sensing of the Environment and member of Nigeria’s National Geospatial Data... (read more)
2015-04-10 10:48:59

The Fierce Rise of Airborne Lidar

A View on Status, Developments and Trends
Today, automatic matching of overlapping aerial imagery and airborne Lidar are the main geodata technologies for capturing dense point clouds of the Earth’s surface. The sampled points are used for the generation of bare ground representations which are often augmented with buildings and trees. Airborne Lidar is flourishing as a prevalent geodata acquisition technology and continues to show a fierce rise in terms of advancements and applications. Read on for an article that discusses the main technological advances of today’s operational systems and surveys the state of the art, developments and trends. Having trained as a geodesist and photogrammetrist, I... (read more)
2017-01-11 09:04:36

Geoinformation in Arable Farming

What’s Hot and What’s Not in Precision Agriculture
Agriculture enthusiastically absorbs geospatial technologies. Precision farming practices in particular benefit from location intelligence. The future in agriculture with geospatial applications is bright. Besides more efficiency on the farm, geospatial technologies also offer new business opportunities and new sustainability concepts. But the adoption of geospatial innovations is lagging behind expectations. So what’s hot and what’s not? This article examines the state of the art in geospatial technologies in agriculture and attempts to forecast the trends. By Tamme van der Wal and Henk Janssen, Wageningen University & Research (WUR), The Netherlands By far the most popular geomatics technology among farmers is... (read more)
2017-02-06 03:09:34

Indoor Positioning

Technologies, Features and Prospects
Outdoor positioning and navigation techniques using GNSS have been well explored and are now a vital part of daily life all over the planet. Since GNSS was initially designed to support the military during open-air combat, there was no need for the signals to be able to pass through walls and roofs. Indoor positioning therefore requires the alternatives to GNSS. How can geomatics contribute to the deployment of indoor positioning solutions? In aiming to find answers to that question, this article also examines current technologies and the various types of applications they originate from. An indoor positioning system is a... (read more)
2013-10-28 01:54:29

An Awakening in India: Interview with Bharat Lohani

Since the July 2014 issue of GIM International is dedicated to Lidar point clouds, it should come as no surprise that it contains an interview with a leading expert on this exciting aspect of the geomatics spectrum. Dr Bharat Lohani, who is leading the Lidar teaching and research group at the renowned Indian institute of IIT Kanpur and is a member of the magazine’s editorial board, was a logical candidate. In this interview he talks about India's role in the industry, his company Geokno, developments within Lidar technology and the geomatics programme at IIT Kanpur.   (By Wim van Wegen... (read more)
2014-07-28 09:58:29

BIM: A New Model for Surveyors

Important Opportunities and Challenges for Surveyors
Building information modelling (BIM) is one of the most intriguing opportunities for surveyors to come along in years. This model-based approach combines technologies and processes to support the efficient creation and use of information for building construction and operations. Because of its strong ties to spatial information, BIM offers a familiar landscape and rich possibilities for surveyors and other geospatial professionals, according to Ron Bisio, vice president of Trimble Geospatial. The opportunities stem from the growing acceptance of BIM within the surveyor’s traditional client base of engineers, architects and property owners. By gaining an understanding of the key concepts of... (read more)
2017-02-28 12:59:59

Enormously Exciting Future in Geomatics

GIM International Interviews Hans Hess, exiting CEO, Leica Geosystems
Autumn 2005 brings at least two major changes to Leica Geosystems. The company has been taken over; in mid-October Sweden-based Hexagon formally took ownership. In addition, Hans Hess has left his post as CEO of Leica Geosystems, succeeded as of November 1st by Hexagon CEO Ola Rollén. We interviewed Hans Hess at Intergeo 2005. Leica Takeover On 27th October 2005 Leica Geosystems announced that following the takeover by Hexagon the Board had appointed Ola Rollén, CEO of Hexagon, as president of Leica Geosystems with effect from 1st November 2005. The current Board of Directors will step down at a specially... (read more)
2005-11-29 12:00:00
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