Compact Testing of EDM Instruments

Using Mirrors for Doubling and Tripling Laboratory Space
A new laboratory method for verifying the accuracy of distance measuring solves the problem of having to mount reflectors outside the laboratory. The limited space of the laboratory is duplicated and tripled by using mirrors. The method gives the same results as the standard method. Verification of EDM equipment involves the determination of instrument errors, then used to monitor instrument performance. Periodic calibration aims to minimise systematic error and determine the highest achievable precision. EDM instruments should be calibrated annually; frequency checks should be made semi-annually. There are two methods for calibrating EDM: the field method and the laboratory method.... (read more)
2005-03-21 12:00:00

3D Target Launches New Version of Lidar Point Cloud Software

3D Target has announced the release of its SmartProcessing Lidar 1.2 software solution. SmartProcessing Lidar, fully developed by 3D Target, enables the production of high-quality georeferenced point clouds from the dataset surveyed with the popular Scanfly Lidar payload. Version features various brand new tools and several improvements. Among other minor bug fixes, the version introduces a Lidar boresight calibration tool, quality reports generation, faster colourization of the point-clouds and Pix4D 4.5 export. “With the new features included in the SPL 1.2, our customers can calibrate their systems by themselves!”, said Paolo Girardi, 3D Target’s CEO. “To the RGB camera... (read more)
2020-02-05 02:10:36

RapidEye Introduces Image Gallery

RapidEye has opened an image gallery on their website. The image gallery will feature high resolution satellite images taken from around the world by RapidEye's constellation of five spacecraft. RapidEye plans to update the image gallery regularly as new, exciting images become available.     "RapidEye's image gallery highlights a small sample of the images provided lately by our satellites and makes them accessible to everyone." comments Michael Prechtel, head of RapidEye's marketing and sales.   System commissioning and calibration activities are advancing. "Having obtained good images from each of the five cameras makes us confident that all cameras work... (read more)
2008-11-28 01:02:17


Certification of Digital Airborne Mapping Products (2)
Digital airborne imaging has grown in importance over recent years. Large-format digital cameras can fully compete with analogue mapping cameras, and for some applications their performance is better. However, methods of calibration and certification used for analogue cameras are not individually transferable as they are based on laboratory calibration, while for digital cameras the entire data-generation process has to be considered. The author describes a new European initiative, EuroDAC2, aiming at a Europe-wide certification procedure for digital airborne mapping cameras. The new project on European Digital Airborne Camera (EuroDAC2) Certification is led by the European organisation for Spatial Data Research... (read more)
2007-08-11 12:00:00

DJI’s Metric Camera for Aerial Surveying

DJI has released the X4S camera, a lightweight version of the large aerial cameras carried in manned aircraft. How do aerial or metric cameras differ to a DSLR? An aerial mapping camera is primarily designed to have a low distortion metric lens and reliable construction to maintain its calibration. To achieve this the cameras have very few moving parts, particularly those that would affect the lens focal length. Aerial camera lenses are very high quality and virtually distortion free. This, and a constant lens focal length, means that every pixel is in the right place. 3D mapping from photogrammetry is based on... (read more)
2018-03-19 11:43:13

Ismael Colomina

Dr Ismael Colomina is chief scientist at GeoNumerics, and holds over 30 years of experience in geomatics specialised in sensor orientation and calibration and trajectory determination. (read more)
2017-07-31 03:09:49

Erica Nocerino

Erica Nocerino holds a PhD in geomatics and is currently a researcher at 3DOM-FBK focusing on automated image processing and system calibration. (read more)
2017-09-07 12:03:00

Jan Skaloud

Prof Jan Skaloud is an expert in sensor integration for navigation and mobile mapping. He teaches and researches at École Polytéchnique Fédéral de Lausanne (EPFL), Switzerland, on satellite positioning, inertial navigation, sensor calibration and photogrammetry. (read more)
2017-07-31 03:10:49

Antero Kukko

Prof Antero Kukko leads the Mobile Mapping group at the Finnish Geospatial Research Institute FGI and holds an adjunct professor position at Aalto University, Finland. His research includes development of laser scanning systems, applications, data calibration and processing.  (read more)
2019-02-05 01:57:40


Certification of Digital Airborne Mapping Products (1)
To facilitate acceptance of new digital technologies in aerial imaging and mapping, the US Geological Survey (USGS) and its partners have launched a Quality Assurance (QA) Plan for Digital Aerial Imagery. This should provide a foundation for the quality of digital aerial imagery and products. It introduces broader considerations regarding processes employed by aerial flyers in collecting, processing and delivering data, and provides training and information for US producers and users alike. Since 1973 the US Geological Survey (USGS) has provided analogue calibration services within the US. Interior orientation parameters and other characteristics of an individual camera were stipulated in... (read more)
2007-08-11 12:00:00
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