Airborne laser scanning is often the most rapid, reliable, and sometimes the only way to collect data of the actual surface in remote areas or forested areas.
Airborne laser scanning allows remote recognition of objects shape, location and reflectance.
The Institute is equipped with RIEGL LMS Q680I and ALTM Gemini scanners, which are the most efficient of that class. They are distinguished by high efficiency and accuracy, and can be installed on various types of aircraft.
Topographic operational procedures for terrain and land targets geo-spatial data collection. The main method of laser scanning is based on using an airborne laser scanner - lidar, installed aboard an aircraft. The airborne laser scanner navigation unit operation is based on the real time interaction of a satellite navigation system (GPS / GLONASS) and inertial instrument system.
With 15 years of track record in ALS worldwide, NIPIStroyTEK airborne surveying experts guarantee a high quality of work they do.
The Institute's professional staff-members create topographic maps, digital elevation, and surface models at a short notice and with a high accuracy.
The result of ALS is a 3D cloud of laser points, classified "ground/non-ground" with density up to several tens of point per one square meter and with vertical accuracy better than 10 cm (at hard surfaces). In fact, it is a digital model of true relief of high density and accuracy, the basis for orthophotos, digital topographic maps of scales 1:500 and smaller, three-dimensional terrain and objects models.
|The flight speed:||90-350 km / h|
|Accuracy of the coordinates: *||5-10 cm|
|Elevation accuracy :*||10-15 cm|
|Point density per 1 m2 of the surface area: *||1-10|
|Shooting altitude:||200-4000 m|
|Swath width:||93-115% of the survey altitude|
|Processing:||up to 10 km (man-day)|
|* At a survey shooting altitude of 500-1000 m|
получение трехмерных моделей рельефа и всех наземных объектов;
Aerial photography in combination with ALS can help get a better idea about the subject in the fullest sense.
The new Vexcel Ultra Cam-Lp full-size digital topographic aerial camera allows professional staff-members of the Institute to produce high quality topographic products for use in all areas for a wide range of functions:
Electric power line (LEP) laser pointcell array
Housing premises laser point cell array
Engineering surveys, airborne laser scanning, digital aerial photography, creating digital elevation models (DTM), orthophotos and special topographic maps scale 1:1000 and special topographic plan of scale 1:500.
Engineering investigations using mobile laser scanning (MLS), terrestrial laser scanning (TLS) on the "Moscow - Saint-Petersburg" railway line.
Engineering investigations, MLS and MLS –based development of 3D-models and digital topographic mapping(scale 1:1000) of 1400 km of the Moscow railway network and infrastructure.
Engineering investigations based onaerial laser scanning data of the center part of the Ulug-Khem coal basin in the Republic of Tuva.
Obtained as a result of laser scanning, a three-dimensional model of an urban land area has been complemented by data on the underground utility lines and attribute-based information.
This consists of a combined application of three-dimensional modeling technology with date obtained by aerial photography, terrestrial surveys and thermal imaging, as well as the application of automated pipelines tracing to the engineering design, construction and operation of pipelines.
The video presentation highlights the mobile laser scanning (point cloud) data obtained by the railway survey. The points can be textured based on the color of the photographs obtained by scanning with the digital cameras integrated into the system, as well as colorized in accordance with various parameters, such as laser reflection intensity or elevation.
The process of surveying with the use of a mobile laser scanner; system mounting and dismounting on a vehicle; an example of the data obtained during the survey.