3dr-Examiner

Optimized and Easy to Use GPR Data

Processing, Visualization and Reporting

...the ground is no limit!

3D-RADAR ASKlæbuveien 196 BN-7037 Trondheim

NorwayTel +47 72 89 32 00

Fax +47 72 89 32 01

PO Box 341Homer, NY 13077

USATel (607)330-0554

sales@3d-radar.comwww.3d-radar.com

a Curtiss-Wright Company

...the groundis no limita Curtiss-Wright Company

3dr-Examiner revolutionizes the processing and analysis of GPR data, through its unique ability to quickly process and navigate large data sets, and its intuitive and user friendly environment for visualization, analysis and reporting. These capabilities enable 3dr-Examiner to dramatically reduce the total time required to process 3D GPR data.

3dr-Examiner Highlights

� Easy to use annotation function - User information about the data helps to identify

problem areas for later reporting

� Designed to handle huge data sets - Multi-file projects with over 100 GB of data are easily

handled

� Optimization for multi-core processors dramatically reduces processing time - Initial analysis of the data can be done in the field, not

in the lab

� Intuitive GUI optimized to navigate quickly in large geo-referenced data sets - Users quickly learn how to extract meaningful

information from the data - Support for import of maps and geo-referenced

images - Assists users in orienting processed data within their

environment

Figure 1: Examiner in Overview Mode. GPR data from archeological site merged with satellite imagery

� Supports multiple swaths/multiple profiles datasets with geo-referenced data - Fast and easy navigation, analysis and reporting of

huge data sets

� Optional features are available and continuously being added - Depth calculation via CMP - Layer thickness

Processing

State of the art multi-channel 3D GPR systems easily produce datasets topping 10 GB of data per file. Such data files are difficult to manage and time consuming to process. Designed specifically to handle very large data sets, 3dr-Examiner uses a combination of careful disk and memory management, parallel processing and efficient algorithms to process, visualize and navigate large volumes. 3dr-Examiner is capable of processing data much faster than it can be collected, allowing users with relatively high performance but inexpensive PCs to easily handle data sets several tens of gigabytes in size.

Visualization

With large datasets covering many square kilometers or miles of area, identification and classification of any anomalies in the subsurface becomes challenging. 3dr-Examiner simplifies this process by enabling the data to be viewed in one or two modes: “Overview” or “Explore”.

Geo-referenced Overview Mode

Unique to 3dr-Examiner, Overview shows all the data in the project geo-referenced. This view enables all the data to be displayed and traversed through for an initial review, giving users the opportunity to quickly identify subsurface areas for further investigations. Presented in full resolution, users can pan, zoom and dive in the data in real time, with the display updating automatically, without needing to wait for offline rendering or “stitching” of the data. Change the depth and the data changes right away. Click and drag a file to align it with another, and the rendered GPR data moves on screen instantly to show how the data will align.

Geo-referenced images can be imported from aerial or satellite photos or maps in almost any projection and used as a backdrop for the data, making it easier for users to

Figure 2: Examiner in Explorer Mode. 3d-GPR data displayed simultaneously

orient GPR data quickly and accurately in the surrounding environment. The geo-referencing is based on state-of-the-art GPS filtering to ensure the best possible accuracy. A graphical editor is supplied for manual overrides if necessary.

Overview mode also includes a sophisticated tool to draw 3-dimensional annotations on the data. The annotations can be exported with rendered GPS data to popular formats including AutoCad (DXF), Google Earth, video and geo-referenced images in almost any projection. The data can also be sliced along arbitrary lines, to show “virtual trenches” of the data.

The Explore Mode

Once an area of interest has been identified, the user simply has to double-click on the location to open the Explore mode, a classical three-slice view for more detailed investigations. This view slices a file in three directions and allows easy navigation in the file in three dimensions.

3DR-EX-PRO

Explore view is also the work area for the optional advanced analysis tool supplied in 3D-EX-PRO for automatic interface/layer tracing. The high-resolution multi-channel data from the 3d-Radar system is uniquely suited for interface tracing, and this tool can trace kilometers of layer interfaces in 3 dimensions with a single click, using an advanced spatial layer tracing algorithm. Easy to use edit brushes make manual edits and overrides simple. The end result is visualized on screen as depth profiles and color coded maps. Interfaces can be visualized and geo-referenced in the overview, and can be exported from there along with the GPR data. It can also be exported to other applications in several numerical formats.

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Export and Extensibility

3dr-Examiner imagery can be cut and pasted into other applications for reporting. The package also allows data export into leading third party analysis and reporting tools like GPR-Slice, Road/Rail-Doctor and others. The export format is fully documented, allowing data to be exported into end-user developed analysis software.

An optional fully documented software development kit can be supplied, which allows the user to develop and integrate specific processing tasks in order to implement custom processing steps and integrate them into the data processing tool chain. These integrate into the 3dr-Examiner data model. Output from these processing tasks can be stored in the project file, visualized in the overview and be part of the exported data.

Table 1: System RequirementsSystem Requirements

OS Windows® XP or Windows 7 (note 1)

CPU Intel® Core™ i(x) or equivalent (note 1)

Memory 4 GB or greater

Ethernet 1000 Base-T

Disk Capacity 250 GB or more (note 2)

Notes:1. Quad-core CPU and a 64-bit OS is recommended for processing very

large data sets.2. Internal and external drives must be formatted with a file system capable

of storing large files (e.g. NTFS, not FAT/FAT32). An SSD will enhance performance, but is not required.

Table 2: Ordering InformationPart Number Description

3DR-EX-VIEW 3dr-Examiner – Viewer version

3DR-EX-ADV 3dr-Examiner – Advanced version

3DR-EX-PRO 3dr-Examiner – Professional version

Figure 3: GPS positioned 3dr-Examiner data exported to Google Earth