3-D Laser Scanner

Step 4 Process the video

Convert the video to an avi. Use an edge detection algorithm to find the location of the laser line. Reconstruct your 3-D model. I've included an early, uncommented MATLAB script, which was used to generate this image.

Comments

[pierceRom]

First off , Thank you so much for that awesome instructable !! Second i was wondering in Step 4, you said to use an edge detection algorithmn to find the location of the laser line and reconstruct to a 3D model. How exactly did you do that and is there a matlab code for it too ??Any help would be much appreciated !! Thank you soo much =)

[Jar Sqwuid]

I don't suppose there's a version available for mac xD Oh well. Project for when I get home. Does it matter what color the laser light is? I imagine it is possible to get the entire head with a full rotation, given the hair is tied up nice and tight. Also, do very sharp and sudden protrusions interfere with the interpretation? Say... the scythe arm of a tyranid model lol

[rohanbd]

somebody plz send me the code or matlab script at [e-mail]

[v.navaneethakannan]

I couldn able to download the script...Kindly help me out pls

[grcan]

(removed by author or community request)

[Arulsoban]

Buddy can u please send me to?
mail address : [e-mail]

[mayhy006]

Hi Grcan, I am so interesting about you project, can you e - mail me your matlab code?
[e-mail]
Thank you

[congnguyen13]

send it to me, please! My e-mail: [e-mail].
thanks a lot!

[ronibar02]

Hi Argon,
I am looking for a scanner for scanning the bottom of the foot, and use the digital data to carve insoles with a cnc system.
Can you help with that?

[greenjedi]

Maybe you could make a mold of the foot and then scan the mold?

[grcan]

When I use this script in Matlab, to give message "Undefined function or variable 'laserColor"
How can I use tihs script ? Thanks

[tanmaysane]

Itz indeed an awesome concept.I am trying to make such a scanner myself.cud u plz help me wid the basic matlab source code. As in from where can I download the matlab code?

[garninja]

what file do you download on http://www.david-laserscanner.com/

[badideasrus]

DAVID_Setup_2_5_5.exe on the downloads page.

[Ma3oud]

hi guys!
i read all comments and all steps.
1-what's your meaning from "edge detection algorithm"? is it kind of video filter or effect? how and with which software i can do so?
2-how can i import this video file (avi) into matlab? and how use the .m file you have attached?

TNXS ALOT

[badideasrus]

if i'm readin this right, matlab IS the detection algorithm..... david 3d works just as well, and it's free.

[ghostrider2]

how can i convert the file into a format that can be used with 3ds max?

[Bear Enthusiast]

Does anyone know how to get MATLAB to export a file that can be converted to an .stl, and if so: how?

[snaut]

hi, i wrote a script to export files to openscad, which itself can export to .stl, i'll upload it sometime soon.

[tdl711]

With the commetns about matlab and its cost, I wonder about using R (www.r-project.org) instead, because it is available for FREE. It is a software package not unlike matlab. The problem is I wouldn't know how to go about translating the code between the two...but it might be useful to know about if someone wanted to get around the expense of matlab.

[AriOululainen]

Could you please send a more detailed description? Step 4 is not clear to me, have not done an "avi" before. Ari

[bloodymess]

"avi" means Audio Video Interleave;it's a movie format, just like .mpg or .wmv. you can convert your video to an .avi with most video converters; just look online, you should find one for free.

[LVGene]

AVI is a container.

[68K]

AVI isn't a format, it's a container and as such the data inside the file can be in various formats. When converting anything to avi you'll need to specify codecs to use for the audio and video.

[franklinonline]

hes close enough explaining it to someone

[TOCO]

is this the actual software that they used in the video. If not where is the actual software?

[kethxxx]

I have this problem in mat lab "Error getting frame data" but I use 15 fames/s I dont know ¿? Some one give me the manual in pdf please or explain me how I give the parameter to MATLAB

[frank the destroyer]

this is friggin sweet, dirt cheep, and overall a breakthrough for the poor 3d modeler

[Val-S]

Very interesting! Thank you! But I have Mac computer. Will you advice any soft for making 3-D model form video?

[Darrellt]

If you use the david software do you still turn it into an avi?

[tranoxx]

that looks expensive

[Berkin]

It's not.

[evanwehrer]

Not really, I did something similar with a webcam and a 35mW green laser with a line lense. It was free for me, I had all the stuff/

[all_thumbs]

What about a Gimp script?

[blueforce4116]

...pretty sure the gimp is made for picture editing. I think you mean blender which dynamic deals with mesh models and such (gimp is more static)...at any rate if you don't have matlab, and there is a good chance that you don't because of its cost you can always use the free software here: http://www.david-laserscanner.com/forum/viewtopic.php?p=161#161
It actually gives a better end result. This instructables (and the included script) is more for people that actually want to see how the calculations are done. If you want a fast free working solution I would go with the DAVID laser scanner at the above link.

[rahmansaid]

The David Scanner demo shows a horizontal line scan. Would it work with a vertical scan like this? What adjustments need to be made?

[blueforce4116]

sry everyone I posted the wrong link. here is the correct one: http://www.david-laserscanner.com/

[koorosh]

would you please tell me after edge detection how i can turn it into 3d? i am using matlab software.

[blueforce4116]

Are you referring to the calibration step once the script is already running? Please be more specific.

[digitalice]

Yeah, please submit the code/script used