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

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

Leica Photogrammetry Suite 9.1

Leica Geosystems Geospatial Imaging (CA, USA) has released Leica Photogrammetry Suite (LPS) 9.1. The introduction of Leica Terrain Format (LTF) provides improved accuracy and processing over LPS 9.0. LTF supports fast update and querying of large quantities of point and line data. Additional features include the DTM Split and Merge tool and additional support for Leica MosaicPro. New versions of ORIMA and PRO600 are also available providing photogrammetry users with an improved workflow processing solution. LPS 9.1 is expected to begin shipping this fall. New features and enhancements in LPS 9.1 include: LPS Terrain Editor quick loading, display and update... (read more)
2006-09-14 12:00:00

Photogrammetry Software for Sanborn

Sanborn has selected SimActive Correlator3D as its new platform of choice. With immense data volumes traversing complex production workflows, Sanborn required a new photogrammetry suite for handling projects efficiently. "The ability to process extremely large image blocks and handle state-wide digital elevation models (DEMs) without bottlenecks in the production workflow are very critical and important factors for the new photogrammetry software" said Dr. Mostafa Madani, chief technology officer of Sanborn. "The performance oriented software delivered high accuracy elevation data with high production throughput." "As a leading mapping company, Sanborn is renowned for their expertise and high photogrammetric standards," said Dr.... (read more)
2011-03-09 11:03:36

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

Cutting-edge Photogrammetry Solutions

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
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