Tag Archive for: scanning

Leica Geosystems HDS4400 Long-Range 3D Laser Scanning Solution

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Leica Geosystems HDS has information a new long-range scanner posted on their product page. Check it out at http://hds.leica-geosystems.com/en/Leica-HDS4400_78316.htm

The Leica HDS4400 mine scanning system offers all the benefits of laser scanning in a convenient, easy-to-learn and highly productive package. It is long range High-Definition Surveying (HDS) for the mining industry.

The Leica HDS4400 mine scanning system offers all the benefits of laser scanning in a convenient, easy-to-learn and highly productive package. It’s long range High-Definition Surveying for the mining industry.

The complete system includes the Leica HDS4400 scanner, a rugged field controller, software and support for mine scanning from the global leader in laser scanning solutions.

The Leica HDS4400 offers users these advantages for long range, pulsed laser scanning:

  • Long range scanning with up to 700 m range
  • Integrated high-resolution digital camera for panoramic color images
  • Removal battery pack
  • 4400 points per second
  • Rugged tablet PC for easy scan control and data visualization

District Attorney lauds use of Leica Geosystems 3D laser scan data as demonstrative forensic evidence in homicide trial

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(Norcross, Ga., 03 September 2009)  District Attorney Joe Mulholland of the South Georgia Judicial Circuit added yet another legal case reference to the growing number of U.S. court cases in which Leica Geosystems 3D laser scan data has been admitted into evidence when he successfully proffered and tendered to the jury a visually compelling Leica TruView.

During the murder trial of Antonio Jerome Greenlee in Decatur County Superior Court, witness and crime scene investigator, Andy Forte of the Thomas County Sheriff’s Department, used Leica TruView to virtually place the jury at the crime scene and to show them how the homicide could have occurred.  The case stems from the homicide of 21-year-old Ebony Clarke of Bainbridge, GA, who was shot and killed on August 12th, 2008, during a street altercation between two men.

Leica TruView is a free, web-enabled panoramic point cloud viewer that allows users to view, pan, zoom, measure and markup the incredibly rich point cloud captured by the Leica ScanStation 3D laser scanner.  The Leica ScanStation allows investigators to first photograph and then make millions of measurements of a crime scene in just a few minutes thus “freezing the scene in time” forever.  A Leica TruView data set can then be generated in minutes after scanning for briefings or analysis or as in this case as a jury exhibit.

“The jury really, really liked it and we had jurors comment afterwards about how effective it was” said District Attorney Mulholland.  “We not only used the TruView to support Andy’s testimony, but the judge then allowed Andy to show it again during my direct examination of other witnesses as I asked them questions about where they were standing or where the shooter was.  TruView is basically a high-tech picture.  It is not testimony.  It is offered as an exhibit and demonstrative evidence.  This seemed to play well with the judge.  The Defense did not object and I think that they thought the same thing.”

Mulholland went on to say that after the trial the judge called him to the bench and commented on how effective the use of the Leica TruView was and encouraged him to use it again.  “We certainly plan on doing so.  The scanning software was absolutely fantastic” said the D.A. The judge also contacted Thomas County Sheriff R. Carlton Powell to thank him for his agency’s assistance with the case and to compliment him on the professional nature of the exhibits generated by his investigators.   Sheriff Powell was instrumental in bringing ScanStation technology to Georgia law enforcement and has made it available to the Georgia Bureau of Investigation and other agencies as a courtesy.

“The Leica ScanStation has been the choice of police and sheriff’s departments, state patrols, crime laboratories, prosecutor’s offices, coroner and medical examiners and tribal justice agencies” said Tony Grissim the Public Safety and Forensic Account Manager for Leica Geosystems.   “The high volume of traffic we are seeing on our web site at www.leica-geosystems.us/forensic is an indicator to us that word is really getting around within the law enforcement community.”
Leica Geosystems – when it has to be right

With close to 200 years of pioneering solutions to measure the world, Leica Geosystems products and services are trusted by professionals worldwide to help them capture, analyze, and present spatial information. Leica Geosystems is best known for its broad array of products that capture accurately, model quickly, analyze easily, and visualize and present spatial information.

Those who use Leica Geosystems products every day trust them for their dependability, the value they deliver, and the superior customer support. Based in Heerbrugg, Switzerland, Leica Geosystems is a global company with tens of thousands of customers supported by more than 3’500 employees in 28 countries and hundreds of partners located in more than 120 countries around the world. Leica Geosystems is part of the Hexagon Group, Sweden.

For further information please contact:

Leica Geosystems Inc.
Andre Ribeiro
Director of Marketing
Atlanta, GA 30092
Phone:   +1 (770) 326-9557
Fax:         +1 (770) 447-0710
Andre.ribeiro@leicaus.com
www.leica-geosystems.us/forensic

REVIEW:: ClearEdge3D EdgeWise™ – High Definition CAD Models Automatically From Point Clouds

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EdgeWiseCompany: ClearEdge3D
Software: EdgeWise™
Website: www.clearedge3d.com

Quick Pitch: Automatically extract vector planar surfaces from point cloud data.

Overview:
Having used just about every piece of software on the market related to processing and extracting vector information from point cloud data, I am always looking for the next best thing that will make my life and my team’s life easier. We have seen the hardware side of laser scanning come a long way in a very short period of time; however, the software side has not improved at the same blistering pace.

When the availability of ClearEdge3D’s EdgeWise™ software was announced here back in June and webinars were hosted to demonstrate the abilities of the software, I was anxious to get my hands on a copy of it to test it out for myself. While a little reluctant to offer demo licenses in the beginning, ClearEdge3D quickly began to realize that skeptics like myself were not willing to spend $5,000.00 on a piece of software that we have not had a chance to try out for ourselves, especially in this economy. They quickly began to recognize the needs of the market and responded accordingly by providing time-based pre-release beta trials to highly interested parties.

Installation:
The pre-release software I received (v. 1.0.2b) was easy to install, although there was an issue with the hardware lock driver on my Vista 64-bit laptop. This was quickly resolved by downloading the correct driver from the SafeNet website (Note: the updated drivers will be included on future distributions).

First Impression:
Right out of the box (figuratively speaking, as the software was downloaded from their website) I was very impressed with the overall look and feel of the software. ClearEdge3D was obviously interested in making their software easy to use and graphically pleasing-to-the-eye because they certainly did accomplish that. The UI is based on the latest Microsoft Office-type menu structure which made it very easy to jump right in.

EdgeWise-CaptureEase of Use:
ClearEdge3D insisted that I attend a 1-hour web-based training session and, while not necessarily needed due to the exceptional design and layout of the software itself, it did prove to be very beneficial and probably saved me the headache of learning by trial and error. With exception to a few terminology questions, I found the software’s left-to-right workflow very easy to use. Every step of the software’s conversion process was very well thought out and the routines made sense, technically speaking.

Technical Aspects:
While the software was primarily designed for the Architectural/BIM workflow, I have to admit that I was a little skeptical about the benefits of automatic conversion vs. the time needed to export the point cloud data to a format EdgeWise™ would accept (non-gridded PTX was the format of choice). Having been in the terrestrial laser scanning business over nine years, I know that point cloud data can be very cumbersome to deal with, especially when having to export to different formats. However, I was pleasantly surprised with EdgeWise’s ability to quickly import the various PTX files that I wanted to test.

NOTE: For those Cyclone users out there, EdgeWise™  is an automated “region grow patch, extend patch to all” batch routine. It really does a great job of quickly identifying planar surfaces and extending the edges to meet adjacent planes. The data import and processing time was a lot faster than I expected, but I did drastically reduce the number of points (to about 1 million).

Workflow:

  1. Export point cloud data (individual scans) to format accepted by EdgeWise™ (see FAQ on company’s website for more information on formats)
  2. Import individual scans into EdgeWise™
  3. Follow a few simple steps to identify the location of the scanner
  4. Extract ground surface (TIN)
  5. Let the software work its magic – it really is as simple as that!


Summary:
If you have a significant amount of basic models that need to be created from point cloud data, EdgeWise™ would likely be a good investment. Keep an eye on this product, because they are definitely on to something and, with a little direction from qualified users, they are on track to change our typical workflow.