David Laser Scanner 3.9.1 24
Scat Laboy
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 line laser (i.e. one that projects a line, not just a point), and two plain boards in the background. The software generates 3D data in real time and shows them on the computer screen while the laser line is swept over the object by hand (like a virtual brush). The line may be swept over the object multiple times, until the results are satisfactory.
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.
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 TU Braunschweig. The concept has been published as a research paper[1] and has received the Best Paper Award at the German Association for Pattern Recognition (DAGM) on September 14, 2006, in Berlin.
Then I disassembled the Laser Edge, after getting annoyed with changing batteries, got a Mono plug from junk I keep, wired it to the Red and Black wires, and it's now only a question of pluging the thing to a Multi-Voltage Power Supply, and presto!
Allways bright laser light!
You got it all, so on to the first scan, mine were complete garbadge, either the objects had dark colours or a shiny surface, or the laser batteries loosed their juice, so I went and done the power plug, and picked a completely dull piece of Roofmate, and scanned it, perfection, for what it's worth, so here's the thing,
then here's the obj file it gave:
Hello. I don't know if you can help me or not but I am desparate so here we go.
I'm using david 4, 3d scanner. I'm using the image grabber function. I take pictures of the 48 projected patterns on the calibration panel and let david use them instead of the live view. Apparently it should work perfectly but I get very low scanning quality. The scanned image of the calibration board is missing large parts and has a very bad quality. What am I doing wrong here? I have attached a picture.
Thank you
Objectives: The aim of this study was to compare the accuracy of measurements taken from plaster casts (gold standard) with digital models of those casts created with a low-cost structural light DAVID laser scanner.
Material and methods: Five different measurements were taken on each of 14 plaster casts by 2 independent observers with an electronic caliper. The measurements were repeated 10 times on all 14 plaster casts by each observer, with a 1-week interval between each set of measurements. All 14 plaster casts were digitized using a low-cost DAVID SLS 3 laser scanner. The same 5 measurements were performed on each of the 3D virtual surface models of the 14 plaster casts by 2 independent observers using Meshlab software in a manner similar to that used with the digital caliper. The measurements were repeated 10 times by the 2 observers with 1 week between each set of measurements.
Results: The laser-scanned models were more accurate than the plaster cast models in defining measurements based on simple tooth fissures. The accuracy of measurements based on complex tooth fissures were equivalent for the 2 types of model. For measurements based on interproximal dental contacts, the 2 methods of measurement were similar and both were notably poor in terms of accuracy.
From coin to furniture, everything is possible with the 3D scanner, because the modular design of the system allows an adaptation to the 3D object size. After some scans are made they will be merged in the software into a closed, waterproof all-round model by using the automatic function.
I've found many products selling structured light 3d scanners. However, I'm curious if exists a software only scanner. Since the "hardware" part is just 2 cameras and a projector, and I think that those can be pretty standard stuff (every modern projector has an HDMI port, most of the cameras can be automated I think), I thought there could be many competitors in the "software only" market. Then everyone can make his own based on the hardware he has already got.
I called HP support, got put on hold 6 times before I got someone who knew what a David 3D Scanner was and could help, they created me a ticket ID 5001619020 and gave me a tip: to reach team for supporting David scanners, input "envy curve" (HP curved screen all in one PC) into the product field as the same team supports it.
Hi, I am also having the above issue. We are a 3D scan studio operating David SLS-3, running David 5 software. We have misplaced our USB key and would like to inquire about a replacement, or workaround. Could you please help us? Consistent with the above message, when inputting a serial number through the automated website support ticket system, the serial number database is not updated with David scanners. Thank you in advance for your help. Nathan
DAVID-Laserscanner is a freeware software for 3D laser range scanning. All you need to build a 3D scanner is a PC, a camera (a Web cam), a background corner, and a hand-held laser that projects a line onto the object you want to scan. So everyone can use it to scan objects without high costs, this is the big advantage over commercial solutions which are rather expensive.
Woa more interest in the scanner! Haha I kind of thought the thread would die since I was having so many difficulties. I would love to combine forces. Mango I understood the google translate well enough to get the major points. I will attempt to avoid slang words and idioms that may not translate well. I like your ideas and would be happy to change the technique of the scanning to achieve a better product. It sounds like we have a lot to talk about.
What is your primary motive for creating the 3d scanner? I really wanted to give something back to the blender community and create a product that was cheap but fairly high quality. I do not think blender users should have to pay $200 to scan an object. I want to create something that everyone can use and that they can use pretty easily.
3-D modelling is maturing fast. Increasingly affordable solutions are not only raising general awareness of 3D workflows but revolutionizing design, engineering and manufacturing processes. The case in point is German-based David-laserscanner - a system that lets users turn everyday objects into 3D models at a low cost.
David-laserscanner currently offers two types of scanning units. The first uses a laser pen, (usually but not exclusively) a web camera, and a back board setup with known points on each facade. The points appear behind the object and are recognized by the software as part of the scanning process.
The video below from Tinkernut.com demonstrates how to build your own laser scanner and use the free software offered by David. In the example highlighted, the figure of a robot is captured using the free version of the software and additional processing is done in Blender - an open source 3D modelling package. More information on the latter, along with downloads of the modelling package, can be found at Blender.org.
Since that time the team behind the DAVID Scanner, DAVID 3D Solutions, have released their latest addition to their 3D scanning Portfolio. DAVID-SLS-1 scanner uses Structured Light technology, to produce 3D scans in a matter of seconds.
SL basically works by pulsing a series of light patterns at the object and building a mesh from this. In comparison to the Starter Kit which involves painting a laser over an object's surface there's a huge leap in time saving and ease of use. That being said, setup time intially, for those new to 3D scanning can be somewhat slow. But once you refine the process you would be ready to scan an object within 5 to 10mins.
After getting some great results I decided to buy the license and it is extremely worth it considering the next cheapest commercial scanner is $2449. Here is an interesting comparison between David and the Next engine scanner. David Vs Next engine
Looking for people interested in building their own DIY 3D laser scanners using Arduino. I have built a functional proof-of-concept and now looking to put together a group of knowledgeable people to further develop and bring it to the next level.
Discovering this DAVID scanner software and then doing some more research on the web did actually lead me here to Shapeways about a month ago. I just now recieved my first print and will write a review in the forum later.
DAVID-SLS-1 scanner allows precise 3D scanning in a matter of seconds. The scanner is mobile and can be placed easily in front of the surface to be scanned. A single click starts the scan - and a few seconds later the digitized 3D model shows up on the screen. This way it is possible to subsequently scan all sides of the object, and finally combine them to a closed 360 model. The results can be exported into common 3D file formats (OBJ, STL, PLY) and processed in other applications, e.g. for rapid prototyping, inspection, product presentations, archeology and cultural heritage, works of art, computer animations, video games.
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