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3DMAnalyst -Software & CalibCam

DESCRIZIONE


Focusing on the Future
Mining Analysis Software

3DM Analyst is a rapid 3D data extraction package for use with digital imagery. The software uses pairs of aerial or terrestrial digital images that can be obtained either from digital cameras or scanned images.
3DM Analyst offers advanced functionality for model orientations, using any combination of control points and camera stations and also allows the use of natural tie points as additional input to enhance orientations.

Features:

  • Supports digital cameras and scanned images in BMP, PNG, TIFF, TGA, and JPG image formats.
  • Built-in support for calibrating digital cameras.
  • Customized orientation routines especially designed for difficult terrestrial models.
  • Optional Least-Squares Matching for all digitized data and centroiding of circular targets to improve accuracy.
  • Enhanced automatic DTM generation algorithm with user-controllable density and correlation criteria.
  • Automatic contour and cross-section generation.
  • Support for up to 50,000 user-defined feature types arranged in a logical hierarchy.
  • Support for breaklines, areas, and holes to control DTM generation and TIN formation.
  • Three distinct views for digitizing and processing data to suit the user’s preference:
    • Images View, with both images shown side-by-side, featuring the Single Image DigitisingTool that allows data to be digitized in one image while the software locates the corresponding point in the other image.
    • 3D View, with all data shown in 3D for full 360 degree viewing, featuring 3D texture mapped models.
    • Stereo View, with images and data shown in stereo to allow true depth perception. Supports a wide range of industry-standard stereo hardware as well as the range of handwheels and footdisks.
  • DXF import and export ability for compatibility with most mine management tools.
  • 3D image export ability for compatibility with Vulcan and other products supporting this format.
  • User-friendly project wizard to guide in the project creation process.

Images taken by an 11 megapixel Canon EOS 1Ds,
from a distance of 70 meters with a coverage of 100m
X 70m giving an accuracy better than 2cm. Time
taken to generate a 3D image for use in Vulcan after
transferring the images to the PC: less than 6.5
minutes.

Applications

  • High wall mapping and monitoring
  • Surveying dangerous or hard-to-access areas
  • Stockpile volume measurement
  • Geological and geotechnical analysis
  • Land slide safety monitoring
  • Virtual view for mining management

Advantages of 3DM Analyst

  • Accuracy
  • Cost-effectiveness
  • Ease of use
  • Flexibility
Technical Specifications

Photography
Any digital camera can be used, from a simple handheld, low-resolution camera, to the most sophisticated available on the market. Scanned images from calibrated film cameras can also be used. 3DM Analyst can calibrate digital cameras directly, or import standard camera and lens calibration details for film cameras.
Either traditional aerial or terrestrial/oblique imagery can be used, with the standard 60% overlap for multiple image models, or convergent pairs of images for single models.

Data Exports
DTM points and triangle feature data, extracted line feature data, contours, and cross-sections can all be exported in standard DXF format or its own MAF format for input into other software packages. 3D images can be exported for use in Vulcan and other software packages.

Training
We can provide operator training if required. Effective operator training can be achieved in a very short time. No previous training or special photogrammetric knowledge is required for normal operation. All complicated mathematical processes are performed automatically by the software, requiring only simple selections and inputs from the operator.

Computer Recommendation

Hardware
The minimum specifications for using digital camera imagery are 256MB of RAM and a Pentium III or better.
For using scanned images from film cameras,we recommend 512MB of RAM and an Intel Pentium IV/AMD Duron or better.

OS
Microsoft Windows NT 4.0 Service Pack 6a or better,
Microsoft Windows 2000, or Microsoft Windows XP.

Display
The 3DM Analyst supports and can be supplied with a range of stereo viewing options. Supported hardware includes StereoGraphics’Monitor Z-Screen 2000 and CrystalEyes products.

“The results of the field trial at Goonyella have indicated that the this Technology software is more accurate, faster, more flexible, easier to use, more robust and more rapidly developing, provides better quality models, has better software support and requires less training. Based on technical considerations of the trial results, the 3DM Analyst plus CalibCam softwares provide the best solutions for BMA's highwall mapping.”
— BMA Coal, "Report on Field Test of New Safe Highwall Mapping Technologies for BMA"

 

3DM CalibCam

3DM CalibCam is the newest addition to the 3DM software range. Designed to complement 3DM Analyst, 3DM CalibCam adds the ability to use any number of images to perform the following tasks:

  • Camera calibration
  • Exterior orientation determination
  • Point surveying

3DM CalibCam uses a least squares bundle block adjustment algorithm optimised for terrestrial applications and offering advanced functionality for interior and exterior orientations, using any combination of control points, camera stations, and natural tie points to enhance orientations.

Minimising Control
One of the key advantages of using 3DM CalibCam with 3DM Analyst is that it dramatically reduces the amount of control required for accurate orientations using the same techniques that have been used successfully for years by the mapping industry with aerial photographs.
3DM CalibCam applies these techniques to the much more challenging terrestrial applications allowing enormous flexibility in the number and placement of control points for orientations.
The key to the operation of 3DM CalibCam is to overlap adjacent images so that control information can be successfully passed between models. This allows dangerous or inaccessible areas to be accurately mapped by placing control in nearby areas and bridging the gap using additional images; even an entire pit wall can be mapped with just a single control point!
3DM CalibCam supports many methods of operation, mixed and matched in a single project if desired. Image strips consist of a series of images with 60% overlap and are ideal for detailed mapping from short distances, while image fans are built from a series of images taken from the same position and are ideal for detailed mapping from long distances (e.g. across the other side of the pit) with zoom lenses. 3DM CalibCam can also merge images taken with low resolution cameras with subpixel accuracy, removing lens distortions and balancing colour as it does so. This allows even inexpensive cameras to be used to easily generate 20+ megapixel images without sacrificing accuracy!

Features

  • Supports digital cameras and scanned images in a variety of image formats: BMP, PNG,TIFF, and JPG.
  • Built-in support for calibrating digital cameras both with circular targets in a target range and with natural points.
  • Optional Least-Squares Matching for all digitised data to improve accuracy.
  • Optional centroiding of circular targets to improve accuracy.
  • Automatic feature detection for relative only points.
  • Image merging for images taken from a single camera station.
  • Customised orientation routines especially designed for difficult terrestrial models.
  • Complete interoperability with 3DM Analyst.

Technical Specifications

Photography
Any digital camera can be used, from a simple handheld, low-resolution camera, to the most sophisticated available on the market. Scanned images from calibrated film cameras can also be used. 3DM CalibCam can calibrate digital cameras directly, or import standard camera and lens calibration details for film cameras.

Data Exports
Derived 3D point data can be exported in an ASCII XYZ format; camera calibrations and exterior orientations are exported in 3DM Analyst’s .cal and .ori formats.

Training
We can provide operator training if required. Effective operator training can be achieved in a very short time. No previous training or special photogrammetric knowledge is required for normal operation. All complicated mathematical processes are performed automatically by the software, requiring only simple selections and inputs from the operator.

Computer Requirements

Hardware
The minimum specifications for using digital camera imagery are 256MB of RAM and a Pentium III or better.
For using scanned images from film cameras, we recommend 512MB of RAM and an Intel Pentium IV/AMD Athlon or better.

OS
Microsoft Windows NT 4.0 Service Pack 6a or better,
Microsoft Windows 2000, or Microsoft Windows XP.

Display
A hardware-accelerated OpenGL graphics card is recommended.

Download attachments:

FOTO

VIDEO