Helicopter Photogrammetry

Safe, Accurate and Cheap Mapping of Transportation Corridors

Surveyors working on busy roads are constantly subjected to close misses from passing traffic; it can be worse. Helicopter photogrammetry is a survey technique designed to prevent fatalities. A complete, dated record of the project area can be economically delivered and accessed at will without having to revisit a dangerous survey site. The authors describe this solution. Terrestrial surveying on fast-moving transportation corridors often means lane closures and roadside work zones but despite these precautions they still remain dangerous places to work in. Traffic management is very expensive and can have a severe impact on the project budget. Lane closures... (read more)

2005-05-03 12:00:00

Panorama Photogrammetry

Accurate 3D Documentation with High-resolution 360° Images

Under the leadership of the Japan Association of Surveyors, the new Fodis Measure3D system was benchmarked against total stations and single frame array cameras for detecting RFID tag positions. One test was performed outdoors for accuracy and two tests indoors for productivity. Fodis Measure3D proved to be an accurate and reliable solution and was shown to be time-efficient, especially for indoor applications where rapid, accurate and selective point measurements are required. In Japan, outdoor navigation by GPS is both popular and successful, and such outdoor navigation technology is now available for use with smartphones - to provide an online... (read more)

2012-02-27 04:13:55

Layman's Photogrammetry

Taking images is the fastest and most reliable way to capture reality. Thirty years ago photogrammetrists dreamed of loading aerial images into a computer and within minutes retrieving - without human intervention - a fully detailed map. Soon, however, the multifaceted nature of image content became evident, and visual interpretation, so easy for human beings, proved too complex for transfer into computer algorithms. The dream evaporated. To date, commercial digital photogrammetric workstations (DPW) support at best semi-automatic extraction of points, lines (mostly roads) and objects (mostly buildings). A human operator approximately locates and identifies a feature, and then comes edge... (read more)

2009-12-29 12:12:44

Institute of Photogrammetry Awarded

In view of the exceptional value it has added towards development of geospatial science, The Institute of Photogrammetry (IPI), University of Hannover will be congratulated by GIS Development with the award for \'Building Geospatial Capacities and Knowledge Network\' during the inaugural ceremony of Map World Forum on February 10, 2009 at Hyderabad, India. Prof. Christian Heipke, current Head of IPI along with the past heads - Prof. Gottfried Konecny and Dr. Karsten Jacobsen will receive the honor on behalf of the Institute. The Institute of Photogrammetry, University of Hannover has contributed significantly towards development of photogrammetry and remote sensing... (read more)

2008-12-03 03:48:45

Lab. of Photogrammetry - NTUA

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2015-06-10 05:24:16

Photogrammetry and Remote Sensing

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2017-02-22 11:31:56

Cutting-edge Photogrammetry Solutions

nFrames

Germany-based technology company nFrames develops cutting-edge 3D surface reconstruction software designed for professional mapping production. Optimised for precision, speed and simplicity, the company’s core software product, SURE, is built to scale for large projects such as countrywide airborne image datasets. Munich 3D from nFrames. Headquartered in Stuttgart, Germany, nFrames offers a new way for businesses to customise their image surface reconstruction workflows. The company’s SURE software delivers derivation of precise point clouds, DSMs, true orthophotos and textured meshes from small, medium and large-frame images for applications such as nationwide mapping or monitoring projects using manned aircraft and unmanned aerial vehicles... (read more)

2016-08-05 10:36:22

Oblique Airborne Photogrammetry (1)

Properties, Configurations and Applications

Oblique airborne photogrammetry is rapidly maturing and entering the workflow of service providers. Many applications embrace the advantages of airborne capturing combined with slanted viewing geometry which comes close to human perception of scenes while standing on the ground. The authors provide an overview of the properties of oblique airborne images, the most common configurations and applications. Today’s aerial surveys are often carried out using multiple small or medium-format cameras mounted together and simultaneously capturing nadir and oblique images. Oblique images capture the scene under a tilt angle, which is much larger than in nadir views. The tilt – the... (read more)

2014-02-17 10:18:18

Oblique Airborne Photogrammetry (2)

Automatic Building Detection and Verification

Multiple view oblique imagery of very high resolution is a rich source of semantic information about buildings and other objects on the Earth’s surface. The efficient extraction of semantic information from such imagery requires automatic scene analysis for which new methods have to be developed. Here, the authors present new methods for automatic building detection and verification from oblique imagery. (By Markus Gerke, The Netherlands, Jing Xiao, China and Adam Patrick Nyaruhuma, Tanzania) The popularity of systematic collection of oblique airborne images will increase rapidly as it becomes easier for humans to recognise lateral parts of buildings and other elevated... (read more)

2014-04-23 08:49:54

Implementation ERDAS Photogrammetry Solutions

Department for Planning & Infrastructure (DPI), a government agency in Western Australia has selected several ERDAS photogrammetry solutions for analysing coastline movements, engineering, maritime facility mapping and nautical charting. DPI is implementing LPS, ERDAS' signature photogrammetry solution that integrates software tools to streamline production-mapping workflows. LPS will be used to capture coastline movement information from current aerial photography. Coastal engineers can use LPS to study areas of the coastline in 3D and make better informed decisions about potential coastline movement and infrastructure impacts. IMAGINE Autosync enables DPI to rectify old imagery to accurate present day aerial mosaics. Because older... (read more)

2008-09-17 09:30:00