Virtual Time-Space of Kyoto

Towards Building Social Consensus Using GIS
The post-war construction of tall, modern buildings in Kyoto has generated heated debate on issues such as what kind of landscape is most beneficial for the city and how can economic progress and environmental protection go hand in hand. The author shows how the use of GIS and Virtual Reality makes it easier to communicate to stakeholders proposed changes to landscape than by 2D-maps alone. Such 4D-GIS are becoming an essential tool in building social consensus. The present-day Kyoto cityscape is characterised by medium to tall high-rise buildings of the post-war era, such as the Kyoto Tower, Kyoto Hotel and,... (read more)
2006-03-27 12:00:00

From Bulb to Flower, the Road towards FIG2020(+1)

From the Perspective of the Local Organising Committee
The tulips have been our signature symbol for the FIG Working Week in Amsterdam in 2020. We included this symbol wherever possible: in the logo of FIG2020, in our images and of course with the orange stickers on the badges. The timing of the Working Week would have allowed you to visit the flower fields, or to buy tulip bulbs in any colour you desired and to plant them for the years to come as a reminder of FIG2020. Our Local Organising Committee (LOC) was looking forward to welcoming you with a specially designed ‘Tulip Entrance’. Hosting the event would... (read more)
2020-05-01 05:53:52

Technology in Focus: Dense Image Matching

Point clouds are increasingly a prime data source for 3D information. For many years, Lidar systems have been the main way to create point clouds. More recently, advances in the field of computer vision have allowed for the generation of detailed and reliable point clouds from images – not only from traditional aerial photographs but also from uncalibrated photos from consumer-grade cameras. Read on to learn more about dense image matching, the powerful technology underpinning this development. Understanding photogrammetry A good understanding of dense image matching requires insight into the way photogrammetry works. Photogrammetry in itself is not a new technology;... (read more)
2016-03-03 10:55:18

Riparian Buffer Evaluation

Remote sensing for Environmental Protection at CFB Gagetown
Years of environmental neglect and deforestation on CFB Gagetown have unfortunately caused sedimentation in the more than 2,400km of streams on the base. In an effort to control this and maintain environmental sustainability, vegetation reforestation is needed to create ‘riparian buffers’. These are vegetated areas, usually forested, near a stream, which help shade and protect it from the impact of adjacent land use. The size of the area makes it important to optimise the reforestation process by identifying those areas requiring most attention. This project was initiated to find a way of identifying these critical riparian buffers using aerial imagery... (read more)
2009-09-01 12:00:00

COWI Consultation

Subsidiary Kampsax Flourishes
COWI is a northern European consultancy group headquartered in Lyngby, Denmark, near the capital Copenhagen. Its 3,500 employees are distributed over nearly all continents and provide a variety of services in the fields of engineering, environmental science and economics. In June 2002 COWI acquired mapping company Kampsax and five years on we wondered how Kampsax was faring within the new constellation. To find out we headed for Copenhagen.<P> Since 1998 it has been possible to reach Copenhagen on the eastern side of the island of Zealand entirely by land, without having to take the ferry across the Great Belt (Storebælt).... (read more)
2007-10-16 12:00:00

Towards All-in-one Photogrammetry

A Case Study of Dense Image Matching Using Oblique Imagery
Modern photogrammetric camera architectures provide high-resolution imagery in nadir and oblique views. This case study sets out to prove the potential of oblique imagery to deliver dense point clouds to be used for DEM, 3D city model and true orthophoto generation – an important step towards ‘all-in-one’ photogrammetry. 3D point clouds for DEM or orthophoto production are typically collected using airborne Lidar systems. The recent development of dense image matching methods provides an efficient alternative by deriving point clouds from imagery. Within this fully automated image processing pipeline, corresponding pixels between multiple images are determined. Each pixel represents a sight... (read more)
2012-04-26 11:32:21

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

High-precision GNSS Receivers

The benefits and availability of new signals and systems
What will the new GNSS signals bring to the user of high-precision receivers? This article provides a brief overview of what users can expect from GNSS systems that are currently in the modernisation/development stage, looking at new signals and emerging techniques including coverage of GNSS developments such as GPS, Galileo, GLONASS and Compass/Beidou. In view of the planned timeframe, what we can do to improve the robustness of our receivers with a special focus on interference and the upcoming solar maximum? The use of high-precision GPS for surveying applications has increased dramatically over the last decade. GPS receivers can provide... (read more)
2011-11-09 03:18:00

Small Company, Big Ambitions

GIM Interviews Paul Bosman, CEO, CycloMedia Technology BV
CycloMedia Technology BV is a privately owned company based in Waardenburg, The Netherlands. The company exploits an in-house developed camera system for capturing urbanised areas from the road. In January 2006 Paul Bosman became CEO. He talked to us about his many ambitious plans. What are the main products and services offered by CycloMedia? Since the early nineties CycloMedia has built up experience in systematic mapping of urbanised areas on the basis of 360-degree images (so-called cycloramas). These images are captured from the road and at street level using a car as carrier of the camera system, including positioning and... (read more)
2007-02-23 12:00:00

Pix4D Software and DJI Phantom UAV Used in Debris Search of Airplane Collision

Late Tuesday morning on 7 July 2015, a U.S. Air Force F-16 fighter jet and a small single-engine Cessna 150 collided mid-air over South Carolina - forcing the jet pilot to eject and sending the two Cessna pilots to their deaths. The situation was grim. Debris was spread over an 11 km range, the majority of it underwater in swampy, alligator and snake infested waters. Fuel from the crash was either leaked or burning from the fuel tanks, and temperatures outside were sizzling at nearly 39 degrees. Over 150 personnel from at least 20 local, federal and state agencies were... (read more)
2015-07-24 09:09:13
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