PRODUCTS: Accuracy Analyst | Topo Analyst
Are your LiDAR and elevation data accurate?
Verify accuracy and quality automatically with Topo Analyst!
Read below to find out how..
Topo Analyst automatically tests and verifies the accuracy of elevation data products. Topo Analyst lets you test LiDAR point cloud data, DEM data products, and other raster elevation data such as IFSAR elevation data products. With Topo Analyst you can make sure you are producing, buying, or using elevation data that meet your specifications and mapping needs. Start with Topo Analyst and add the LiDAR Testing Extension to provide a complete solution for LiDAR elevation data verification and quality control. Combine your purchase of Topo Analyst with Accuracy Analyst for discounts and to multiply the benefits of using tools that Add Efficiency and Eliminate Data Flaws!
Elevation data and products are evolving rapidly and options exist for highly accurate observations of terrain and topographic features. Likewise, testing guidelines and specifications, such as for LiDAR data and derived products, are emerging that challenge producers, customers, and users to comply in a responsive, yet effective manner. With Topo Analyst, meet guidelines and specification, fully test enhanced elevation products, and comprehensively verify elevation data with a single, highly flexible set of technologies. Topo Analyst gives producers, customers, and users the ability to verify accuracy and quality with benefits including the following:
Topo Analyst - Complete capabilities to verify and report the accuracy of elevation data. Verification - Fast and Easy!
Topo Analyst is a standalone Windows-based software tool that enables rapid verification and review of LiDAR point cloud data (LAS file format) as well as raster DEM data that may be derived from LiDAR. Topo Analyst can test DEM data without LiDAR data so it is suitable for general elevation data testing.
OS Requirements: Topo Analyst requires Windows XP Professional with Service Pack 2 (SP2) or more recent releases of Microsoft Windows OS. For Windows 7 systems, some redistribution files may be needed prior to installation. Please see the install notes for further details about installation and configuration.
Dependencies: Topo Analyst requires .NET 3.5 Service Pack 1 or higher. The .NET framework and service packs are available without cost via the internet from http://www.microsoft.com/downloads.
Minimum System Requirements: A screen resolution of at least 1280 x 1024 is required. System configurations should include a CPU with speed greater than 1 GHz, 1GB or more of system memory, and local, attached, or high performance network storage for data access.
Recommended Configurations: For ideal performance, users should consider multi-processor systems with CPU speeds in excess of 2GHz with 3GB or more of system memory as well as a dedicated graphics card. Typical user configurations may include multiple monitors which can make using Topo Analyst more efficient and effective.
Screen resolutions higher than 1280 x 1024 are recommended and it should be noted that a high resolution monitor and a dedicated graphics card can dramatically enhance performance of elevation data verification and review.
Inputs: Topo Analyst automates the accuracy verification and QA process for elevation data by using input data and interfaces streamlined to support workflows vital to accuracy verification and quality control and assurance of LiDAR data collections. Topo Analyst may also be used to check the accuracy of digital elevation data used for a variety of purposes including ortho-rectification, flood studies, earth works planning, slope stability analysis, infrastructure planning, and many others. Necessary inputs include the following:
The following support documents are provided:
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Topo Analyst - LiDAR Testing Extension (TA-LTE) provides a software solution for quantitative testing of LiDAR data that delivers automated, standardized, consistent, and simplified accuracy verification and quality assurance. As a plug in to Topo Analyst, it allows you to perform modular testing of LiDAR data across the project life cycle, perform comprehensive testing to verify completeness of coverage of raw uncalibrated flightline data, relative accuracy of calibrated LiDAR swaths, and absolute accuracy and quality of final tiled LAS and DEM products.
The modules of TA-LTE were designed to consider LiDAR data and products across the project life cycle and address questions which follow:
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