Tag: digital surface model

  • AEC firms use aerial mapping to share infrastructure funding

    Photo: Nearmap
    Photo: Nearmap

    With Congressional approval of $17 billion in infrastructure funding, the largest single allocation ever, the scramble to win contracts is about to get red hot and AEC firms are gearing up. In this very competitive game, top engineering firms are relying on their experience, technology, business acumen and ability to execute.

    Advances in aerial mapping play a key role in how AEC firms pursue these contracts. Savvy firms have been using this technology for years. Rather than rely on lower resolution satellite imagery or local drone imagery, they use wide-area-coverage aerial maps to clearly display the detail needed to plan and execute.

    Over the past decade, maps made using aerial photogrammetry have played an important role in the AEC space. Using high-performance cameras, fleets of planes capture hundreds of square miles per plane per day, provided that the weather is clear. The imagery is processed and made available to engineering companies within days of capture, allowing them to see very clear imagery.

    AEC organizations use different forms of aerial maps to evaluate sites, improve their survey designs, and build and maintain infrastructure (roads, highways, bridges, tunnels, overpasses, rail, airports, housing, commercial building development, water resources, parks, pavement and more). Imagine you’re a state or local government that needs to build a bridge, or a developer who wants to contract with an engineering and construction firm to build affordable housing. Why travel to perform time-consuming site evaluations when you can meet with engineering teams in your office and review hundreds of potential sites instantly using current aerial photos that show change over time?

    The engineering teams point out elevation changes, the presence and height of vegetation, neighboring communities, bodies of water, ponding and more. They easily navigate from one location to another as you discuss where the entrance to the community could be, how the road network might be configured, and the proximity to retail, schools and healthcare. Within minutes you measure risk, understand the landscape, make decisions, and begin to estimate the project costs. Your teams collaborate, discuss the pros and cons, measure distances and navigate across the terrain virtually.

    Aerial mapping provides a competitive advantage for AEC companies to win their fair share of the infrastructure bill. It also gives governments and developers the confidence they need to make the right decisions. Typically, this involves looking at sites from all angles. The classic form of aerial mapping used by engineers is a top-down perspective. Increasingly, these organizations have used oblique imagery captured at an angled perspective, which shows height.

    Artificial Intelligence and Aerial Photography

    Starting a few years ago, 3D imagery and digital surface models began to allow engineers to navigate through the imagery and query it based on elevation. More recently, aerial mapping has leveraged artificial intelligence (AI) to classify properties and the landscape. Do you need to see nearby construction sites? AI applied to aerial photography can do that automatically. This rich set of data includes attributes such as tree overhang, roof condition, roof material, building footprints, vegetation height, surface material, swimming pools and even solar panels.

    The blend of all these imagery types and AI into a single solution makes everything discoverable. Users can search by address, city, location or point of interest. They can visualize the imagery along with lat/long coordinates and quickly switch from top-down views to obliques to 3D. As they learn more about the landscape, they begin to turn on AI attributes, gaining deeper insights.

    Sometimes, the analyses go even further. Engineering organizations export the imagery to tools of their choice from such companies as Autodesk, Esri or Bentley Systems, use field-collected ground control points to ensure that it is survey grade, then use it as a base layer for their designs. They even create marketing presentations and video content to help them win the business. Current high-resolution aerial maps have become a cornerstone of how these organizations operate.

    This approach provides unique advantages for engineering firms. For example, they can combine geospatial and construction datasets in a common operating environment to reduce complexity, streamline communication, ensure that all stakeholders are up to date, and check their progress toward meeting contractual obligations.

    Planners have current, contextual designs and models to make accurate decisions about planning and development activities. They can view asset locations and conditions to facilitate maintenance and upgrades, leverage aerial maps inside other platforms to improve work orders and reduce field visits, and ensure regulatory compliance.

    Whether it’s improving highway safety, constructing ferry terminals, improving transportation systems, developing land or building a network of recreational trails, aerial imagery provides engineering and construction companies with a competitive advantage to win new business, improve client satisfaction and meet growth targets. With $17 billion on the line, sophisticated firms are finding a way to secure their fair share of the pie.

  • AEC firms use aerial mapping to share in infrastructure funding

    AEC firms use aerial mapping to share in infrastructure funding

    Nearmap aerial imagery is used as a basis for survey linework. Photo: Nearmap
    Nearmap aerial imagery is used as a basis for survey linework. Photo: Nearmap

    With Congressional approval of $17 billion in infrastructure funding, the largest single allocation ever, the scramble to win contracts is about to get red hot and AEC firms are gearing up. In this very competitive game, top engineering firms are relying on their experience, technology, business acumen and ability to execute.

    Advances in aerial mapping play a key role in how AEC firms pursue these contracts. Savvy firms have been using this technology for years. Rather than rely on lower resolution satellite imagery or local drone imagery, they use wide-area-coverage aerial maps to clearly display the detail needed to plan and execute.

    Over the past decade, maps made using aerial photogrammetry have played an important role in the AEC space. Using high-performance cameras, fleets of planes capture hundreds of square miles per plane per day, provided that the weather is clear. The imagery is processed and made available to engineering companies within days of capture, allowing them to see very clear imagery.

    AEC organizations use different forms of aerial maps to evaluate sites, improve their survey designs, and build and maintain infrastructure (roads, highways, bridges, tunnels, overpasses, rail, airports, housing, commercial building development, water resources, parks, pavement and more). Imagine you’re a state or local government that needs to build a bridge, or a developer who wants to contract with an engineering and construction firm to build affordable housing. Why travel to perform time-consuming site evaluations when you can meet with engineering teams in your office and review hundreds of potential sites instantly using current aerial photos that show change over time?

    The engineering teams point out elevation changes, the presence and height of vegetation, neighboring communities, bodies of water, ponding and more. They easily navigate from one location to another as you discuss where the entrance to the community could be, how the road network might be configured, and the proximity to retail, schools and healthcare. Within minutes you measure risk, understand the landscape, make decisions, and begin to estimate the project costs. Your teams collaborate, discuss the pros and cons, measure distances and navigate across the terrain virtually.

    Aerial mapping provides a competitive advantage for AEC companies to win their fair share of the infrastructure bill. It also gives governments and developers the confidence they need to make the right decisions. Typically, this involves looking at sites from all angles. The classic form of aerial mapping used by engineers is a top-down perspective. Increasingly, these organizations have used oblique imagery captured at an angled perspective, which shows height.

    Artificial Intelligence and Aerial Photography

    Starting a few years ago, 3D imagery and digital surface models began to allow engineers to navigate through the imagery and query it based on elevation. More recently, aerial mapping has leveraged artificial intelligence (AI) to classify properties and the landscape. Do you need to see nearby construction sites? AI applied to aerial photography can do that automatically. This rich set of data includes attributes such as tree overhang, roof condition, roof material, building footprints, vegetation height, surface material, swimming pools and even solar panels.

    The blend of all these imagery types and AI into a single solution makes everything discoverable. Users can search by address, city, location or point of interest. They can visualize the imagery along with lat/long coordinates and quickly switch from top-down views to obliques to 3D. As they learn more about the landscape, they begin to turn on AI attributes, gaining deeper insights.

    Sometimes, the analyses go even further. Engineering organizations export the imagery to tools of their choice from such companies as Autodesk, Esri or Bentley Systems, use field-collected ground control points to ensure that it is survey grade, then use it as a base layer for their designs. They even create marketing presentations and video content to help them win the business. Current high-resolution aerial maps have become a cornerstone of how these organizations operate.

    This approach provides unique advantages for engineering firms. For example, they can combine geospatial and construction datasets in a common operating environment to reduce complexity, streamline communication, ensure that all stakeholders are up to date, and check their progress toward meeting contractual obligations.

    Planners have current, contextual designs and models to make accurate decisions about planning and development activities. They can view asset locations and conditions to facilitate maintenance and upgrades, leverage aerial maps inside other platforms to improve work orders and reduce field visits, and ensure regulatory compliance.

    Whether it’s improving highway safety, constructing ferry terminals, improving transportation systems, developing land or building a network of recreational trails, aerial imagery provides engineering and construction companies with a competitive advantage to win new business, improve client satisfaction and meet growth targets. With $17 billion on the line, sophisticated firms are finding a way to secure their fair share of the pie.

  • UP42 partners with Intermap for high-resolution elevation data

    NEXTMap digital surface model (Image: Intermap Technologies)
    NEXTMap digital surface model (Image: Intermap Technologies)

    The NEXTMap Elevation Data Suite from Intermap Technologies is now offered on the UP42 developer platform for Earth observation data and analytics. UP42 gives users direct access to extensive Earth observation datasets and advanced processing algorithms, and Intermap Technologies, based in Englewood, Colorado, is a provider of geospatial datasets, solutions and software.

    The NEXTMap 3D elevation products are available as digital surface models and digital terrain models at one-, five- and 10-meter resolution. According to Intermap, NEXTMap One offers 1-meter spatial resolution, 1-meter vertical and 3.5-meter horizontal accuracy; NEXTMap 5 offers 5-meter resolution, 1.6-meter vertical and 3.5-meter horizontal accuracy; and NEXTMap 10 offers 10-meter resolution, 8.4-meter vertical and 17.5-meter horizontal accuracy.

    “We are excited to add NEXTMap elevation models to the UP42 platform. Our customers need this data for a range of use cases, including monitoring of vital infrastructure projects such as pipelines, powerlines and railway corridors,” said Sean Wiid, CEO of UP42. “High-quality 3D data is critical in every phase of infrastructure management from construction planning to ongoing monitoring of vegetation encroachment.”

    The addition of NEXTMap datasets to the UP42 marketplace enables users to build even more powerful geospatial solutions in the areas of infrastructure management, construction planning, geologic mapping, land cover classification, forestry, resource conservation and contour generation, UP42 said.

    “Our goal at UP42 is to create a single platform where our users have access to all the geospatial data, analytics and processing infrastructure they need to build solutions that solve critical real world problems,” said Wiid. “Intermap’s NEXTMap elevation models dramatically expand our core data offering and, as a result, expand the range of use cases we can help our customers address.”

    The NEXTMap datasets join a variety of Earth observation information already on the UP42 marketplace, including Pleiades 1A/B, SPOT 6/7, Landsat-8, TerraSar-X, Sentinel-2 and MODIS satellite imagery, Getmapping U.K. aerial data, exactEarth AIS data, and Meteomatics weather and ocean data.

  • SimActive’s Correlator3D used to assess Hurricane Michael damage

    SimActive’s Correlator3D used to assess Hurricane Michael damage

    Aerial imagery of the devastation from Hurricane Michael in Mexico Beach, Florida. (Image: SimActive)
    Correlator3D was used to process large format imagery collected by Midwest over Mexico Beach, Florida. (Image: SimActive)

    SimActive Inc., developer of photogrammetry software Correlator3D, has partnered with Midwest Aerial to perform damage assessments of Hurricane Michael.

    Correlator3D was used to process large format imagery collected by Midwest over Mexico Beach, Florida. The joint effort resulted in highly precise geospatial data, including a digital surface model (DSM), an orthomosaic and a 3D model, the company said.

    “This is a terrible disaster for the people affected and we hope they can benefit from geospatial technologies available,” said Philippe Simard, president of SimActive.

    The gallery below shows samples of the imagery collected.

    SimActive’s Correlator3D is a patented end-to-end photogrammetry solution for the generation of high-quality geospatial data from satellite and aerial imagery, including UAVs. Correlator3D performs aerial triangulation and produces dense DSM, digital terrain models, point clouds, orthomosaics, 3D models and vectorized 3D features.

    Powered by GPU technology and multi-core CPUs, Correlator3D ensures high processing speed to support rapid production of large datasets, the company added.

    Midwest Aerial Photography focuses on acquiring high-quality aerial imagery and companion data in support of photogrammetric mapping projects across the United States and Canada. Midwest partners and clients include federal, state and local government agencies, as well as photogrammetric firms and architectural and engineering companies.

  • SimActive updates Correlator3D for mining

    According to SimActive, users can now process raw data, produce point clouds and digital surface models, and perform volumetric calculations with the Correlator3D workflow. (Photo: SimActive)
    According to SimActive, users can now process raw data, produce point clouds and digital surface models, and perform volumetric calculations with the Correlator3D workflow. (Photo: SimActive)

    SimActive has updated its Correlator3D end-to-end photogrammetry software to include tools for users to generate precise statistics on mining activities, with improved volumetric calculation.

    The integrated tools allow users to generate precise statistics on mining activities.

    The Correlator3D software performs aerial triangulation and produces dense digital surface models, digital terrain models, point clouds, orthomosaics and vectorized 3D features.

    Applications like mineral extraction monitoring can be done seamlessly within the software.

    Users can process raw drone data, produce point clouds and DSMs, and perform volumetric calculations in the same Correlator3D workflow.

    “Our clients often require project delivery within 24 hours”, said Jennifer Waugh, principal at Alietum Ltd., a Canadian company using unmanned technology to support construction, consulting and government clients. “SimActive enables us to meet this demanding turnaround time.”

    Based in Montreal, Quebec City, Canada, SimActive has been a developer of photogrammetry software since 2003.

  • V6 of Virtual Surveyor provides streamlined workflows with drones

    V6 of Virtual Surveyor provides streamlined workflows with drones

    Image: Virtual Surveyor
    Image: Virtual Surveyor

    The newly released version 6 of the Virtual Surveyor drone surveying software offers a faster, more efficient workflow and better overall user experience in a more stable platform, according to the software maker.

    Version 6 offers new capabilities, an improved licensing system and an extended free application.

    “Surveyors who have used the Virtual Surveyor package in the past will be amazed at how easily they can manipulate data and how quickly the software renders results of even the most complex topographies,” said Tom Op ‘t Eyndt, managing director of Virtual Surveyor nv in Belgium.

    Virtual Surveyor leverages the expertise and interpretation skill of a land surveyor and combines it with the computing power of the computer, the company said.The software generates an interactive onscreen environment through orthophotos and digital surface models, generated from the unmanned aerial vehicle (UAV), where the surveyor selects survey points and breaklines to define the topography.

    Image: Virtual Surveyor
    Image: Virtual Surveyor

    Virtual Surveyor enables land surveyors to complement traditional fieldwork with UAV imagery to generate highly accurate topographic products up to five times faster than otherwise possible. It bridges the gap between UAV photogrammetric processing software and engineering computer-aided design (CAD) packages.

    “The focus of Version 6 development has been to streamline the workflow — from the importing of drone data to exporting topo information into CAD — to make the surveyor more productive,” Op ‘t Eyndt said.

    Key enhancements in Virtual Surveyor 6 include the following:

    • Easier editing – The new editing functions allows users to quickly select, delete or move individual point and lines placed by the computer during the automated creation of elevation points. The associated Undo/Redo function allows reversing all edit operations.
    • Better CAD integration – The addition of Descriptor functionality means that point descriptions remain with the point during export to CAD, working the same way as the land surveyor collects data in the field.
    • 3D geometry retained – All points, lines and other data imported into the software, either from a UAV or field surveyed data, retain elevation values and integrate seamlessly into the merged scene. This allows a surveyor, for example, to collect point values from a ditch bottom that may be obscured by vegetation in the drone image and have the bottom points accurately represented in the topography.
    • Improved drawing tools – Users can now densify (drape) lines and boundaries to map current surface conditions. Individual vertices are now adjustable in all directions and exact X, Y and Z locations can be specified as well. Sub-surface modeling is now possible with these new improvements. Created features can then be exported to CAD for profile or alignment creation.
    • Extended free plan – Referred to as the Valley version, the free Virtual Surveyor suite has added functionality, including the ability to import photogrammetric data.
    • Improved licensing – We better honor our principle: “The license follows the user”. With an improved licensing system based on a Virtual Surveyor Identity (email) the user will be able to work where he or she wants.

    “The enhanced user experience will continue to appeal to professional land surveyors, who are our core client base,” said Op ‘t Eyndt. “And the seamless integration with CAD and advanced drawing tools will make Virtual Surveyor more attractive to design engineers.”

    Virtual Surveyor is available in a free 14-day trial.

  • TCarta delivers surface models for Caribbean disaster recovery

    TCarta, a global provider of marine geospatial products, has delivered pre- and post-disaster surface models for the Caribbean islands of Antigua and Barbuda for use in Hurricane Irma recovery efforts.

    The satellite-derived surface models contain seamless datasets of onshore elevation and offshore water-depth measurements for each island.

    The United Kingdom government commissioned the Hurricane Irma disaster mapping for Antigua and Barbuda as part of the Commonwealth Marine Economies Programme. TCarta won a competitive tender, which specifically requested end products derived from satellite imagery.

    “By specifying satellite-derived data as the deliverable in its tender, the U.K. government acknowledged the speed and cost advantages this technology offers compared with traditional shipborne surveying or airborne lidar collection,” said TCarta CEO David Critchley.

    Hurricane Irma devastated the Caribbean in September 2017. The governments of Antigua and Barbuda requested accurate data for onshore land elevations and offshore water depths from before and after the storm hit.

    The datasets will be used in digital change detection analyses to determine how Irma altered the surfaces of the land and seafloor. This will be vital information in repairing onshore drainage systems and updating coastal navigation charts.

    “A seamless onshore-offshore dataset is crucial for the hydrographic computer modeling to accurately visualize the integrated nature of the dynamic terrestrial and near-shore environments,” Critchley said.

    For the seafloor dataset, the TCarta team generated satellite-derived bathymetry products by extracting accurate water-depth measurements from high-resolution multispectral imagery acquired by the DigitalGlobe WorldView satellites. In the clear Caribbean waters around Antigua and Barbuda, bathymetric points were delivered on a 2-meter spacing to deeper than 20 meters.

    The TCarta team created digital surface models of the terrain on Antigua and Barbuda, using a technique to derive surface elevations at 0.5-meter point spacing from multiple WorldView images captured over the islands. Vegetation was then removed from surface models to yield bare-Earth elevation models.

    TCarta delivered the high-quality before-and-after datasets to the UK government which in turn distributed them to scientists on Antigua and Barbuda for damage assessment and planning for the coming hurricane season.

  • SimActive launches free data-processing service using Correlator3D

    SimActive Inc., a developer of photogrammetry software, is offering a new free data-processing service using Correlator3D.

    New users can upload their first UAV, satellite or aerial image project to obtain digital surface model (DSM), digital terrain model (DTM), point cloud and orthomosaic outputs.

    Along with optimal results, users also receive tailored feedback, recommendations and training from SimActive experts.

    The service requires no obligation, and is based on Correlator3D software, building on more than a decade of innovation on computer vision algorithms, a subfield of artificial intelligence. Quick turnaround is also possible due to the speed of the software and extensive use of GPU.

    “Our new offer is unique to get the best possible results from the very first project onward,” said Philippe Simard, president of SimActive. “Following this, users are trained with industry-leading technology, custom advice and necessary knowledge for successful mapping.”