![Software Software](/uploads/1/2/5/4/125467098/731004847.png)
Now that HP has absorbed the David 3D scanner/software can someone from the former David team or the new HP team in charge of HP/David give the users of the former David forum an update as what to expect?
3.2, Website DAVID Laserscanner is a software package for low-cost 3D laser scanning. It allows scanning and digitizing of three-dimensional objects using a camera (e.g. A web cam), a hand-held (i.e. One that projects a line, not just a point), and two plain boards in the background. Its most distinctive feature is that the laser line can simply be swept over the object by hand (like a virtual brush) until the results are satisfactory. At the same time, DAVID Laserscanner generates 3D data in real time and shows them on the computer screen.
The resulting 3D mesh can be exported into well-known file formats and can thus be imported and processed in most 3D applications. The software is also able to grab the texture and 'stitch together' scans made from different viewing directions. Contents.
Scanning process An initial calibration is made to determine the lens parameters and location of the camera relative to the background boards, which are two vertical planes positioned at 90 degrees to one another behind the object to be scanned. When scanning, the camera must be able to see part of the laser line on each board. This enables the software to reconstruct the plane of the projected laser light. Once it has determined the two-dimensional plane that the line laser is projecting, it is able to analyse the image of the laser line falling on the scanned object and resolve it into points in space. History Development of DAVID Laserscanner started in September 2006 by German computer scientists Dr. Simon Winkelbach and Sven Molkenstruck, research associates of the Institute for Robotics and Process Control of the. The concept has been published as a research paper and has received the Best Paper Award at the German Association for Pattern Recognition (DAGM) on September 14, 2006, in Berlin.
DAVID Laserscanner was originally available for free but has increased in price since late 2008. The companion software, 3D Shapefusion, was originally sold for €25. DAVID Laserscanner now includes both products in the €329 price tag (as of March 2012). References.
The 'Scanning' menu provides functions to setup scan parameters, capture new scans including texture, filtering, exporting, and sending them to 'Shape Fusion'. In the following, the most basic workflow is presented that can be altered by various options: 1. Place scanner Place the scanner and the object in front of each other, at the same distance as during setup and calibration. With a wrong working distance, the camera image and projected stripes would be blurred. If necessary, correct the distance between object and scanner, but by no means change the focus of camera or projector. Before each scan please check that the red sine curves are not cropped / overdriven (relevant only in the areas where the wave pattern is visible). If adjustment is necessary, adjust the Projector Brightness in the software.
Select pattern parameter profile Select the pattern parameter profile Quality, Default (recommended) or Speed. This setting affects scan quality and scan time.
Click 'Start' With each click on Start a new scan is generated. A sequence of patterns is successively projected and recorded. This can take between settings 2-4 seconds or longer.
![Scanner Scanner](http://www.keyfound.us/picture/116581.jpeg)
See also for scan options. Using the mouse, you can change the 3D view onto the object (see for details). With the Live Camera button in the top toolbar you can return to live video feed. To assure that multiple scans of the same object can be well combined later, they must overlap sufficiently. You usually will need about 6-8 scans all around the object, maybe plus some angular views of top and bottom.
Textures can help later when aligning multiple scans. Filter result Modify parameters of 'Result Filtering' to your need. You will see the filtering result immediately in the 3D Scan view. Transfer result Export scan or send it for further processing to 'Shape Fusion'. Next Topics Setup and control of turntable Adjusting camera properties Adjusting projector brightness to scan object Setup method and parameters for scanning Taking new scans with Structured Light Scanning Post processing of new scans Transfering new scans to 'Shape Fusion'.