WebCam Data

Drop zone for Webcam data
DanL
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Re: WebCam Data

Post by DanL »

hi art tried the webcam in my scanner box the picks came out ok with me turning lights on and off by hand.

had settings at 176 x 144 YUY2, confidences at 270.9, gradient scale 0.01 I put the image out at x 176, y 144 and z 14.81831, vertices 6331. see attached pic

it would have worked better if i turned lights on and of at the correct time got it close a couple of times pic`s came out quite clear so if you wont to add out put light control through a arduino that would be cool this year next year when ever.

if you did I think it would be as good or better than the scanner program I use.
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ArtF
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Re: WebCam Data

Post by ArtF »

Hi Dan:

Thx for the numbers. If the photos are not perfectly timed it will screw it up..no question. :)

Art
DanL
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Re: WebCam Data

Post by DanL »

yep I will try sticking my spear off next week screen in there to get the correct timing it will make it better, useing twin screens makes it easy
DanL
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Re: WebCam Data

Post by DanL »

Hi art had a good play today I have the screen in my scanner box works good forgot to save the last image I did it came out quite well

the confidence was 64.899, resolution 640 x 480, fire 250ms

couple of thing I found the colour of what you are taking a image of can make or brake a image capture dark colour`s don't work very well at all light colour`s are fine, black pretty much leaves a very white colour, so if the back ground is black it will leave a white back ground.

I will play more tomorrow using a black back ground hopefully I will rember to save the images this time
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ArtF
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Re: WebCam Data

Post by ArtF »

Dan:

Send me a email to support and I can send you the new version with a much different
algorithm.. much faster and pulls much better. You may find it better, but there are no docs
or video for it yet, its a bit more complex as more selections exist in its operations.

  But then, the results are much more impressive..

Art
DanL
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Re: WebCam Data

Post by DanL »

hi art did not see your reply did some playing with a black back ground so much better the area around what I did images off is single colour and flat.

I will add images of result from cut 3D

a is same settings as before as a negative, 3 is image
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ArtF
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Re: WebCam Data

Post by ArtF »

lol.. Those look cool..

I see your email, Ill send you a fresh version..

Art
DanL
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Re: WebCam Data

Post by DanL »

I have run in to a big problem the X and Y are the same as the aspect size but Z is coming out as just over 3 meter in depth I change x to 200 it goes down to 1 M
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ArtF
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Re: WebCam Data

Post by ArtF »

Dan:

  Wow, those are pulling out nicely.. just lower your scale slider, it should lower back to a reasonabel pull, I aim for about 150 as a good scale.. but it varies from data to data set..

Art
DanL
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Re: WebCam Data

Post by DanL »

yer they are better than my laser scanner can do I will try that
DanL
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Re: WebCam Data

Post by DanL »

Hi art moving the slider down to 1 leaves not a very good image, having it set to 2.5 is a lot better but it has a 80 mm curve ever negative or image it`s all the same.

so the scale of negative to image is good

but the curve is way to much the whole image will be curved cutting the side of helps a little bit.

I have tried a flat black back ground it make`s it worse bigger curve.

A flat white back ground is better, between black and white is 200 mm

it would be good if you can reduce the Gradient scale so if its at 10 it would be 1/4 or less of what it is now but keeping the image just as good or have it how it was in the last version I tried the one on your site had barely any curve to wear there was a flat back ground sorry to be a pain

picks 1 is negative, 1 on gradient scale pick 2 is negative, 2.5 on gradient scale, picks 1a, 2a is image same setting`s 

threshold is 0.1, zero noise gradients is un ticked, ambient correction same, fullres resolution is 176 x 144 yuy2--format 2
DanL
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Re: WebCam Data

Post by DanL »

been playing with the web cam on my laptop the differences from the webcam in a box to the one on the laptop is massive everything comes out fine with the webcam on my laptop.

I thinks it just that there is no back ground noise in the box so the changes you made are to much if the webcam has no back ground noise and is in a box I will try having the web cam sitting on my laptop to see what happens I will post those latter
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Re: WebCam Data

Post by DanL »

here is a pick done with my webcam sitting on my laptop I have background lights on so its not the best but it half the depth of doing it in my scanner box with the Gradient scale at 3
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ArtF
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Re: WebCam Data

Post by ArtF »

Dan:

  Also, look closely at the images, any chance the timing is off on the scanner box? The photo is actually taken at the end of the flash cycle, not at the beginning. When the screen flashes the one side, you have
to be pretty carefull about when exactly that photo is taken.
  I guess I really need to put out a trigger just in case for people like yourself that can use external
processes.. But your right, it could just be your images are too good.. Of course, you dont need to use Gearotic at all for taking of the pictures, so long as you save them in alphabetical order so the
reconstruction knows which is which..
 
    In the fall when I revisit the 3dfromwebcam, Ill get some images from you and analyse why
their so strong. Ive moved on to a new investigation now that will keep me busy till the fall,
so we'll discuss this in more detail then. The new 3d will be released than as well.

Thx
Art
DanL
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Re: WebCam Data

Post by DanL »

ok sweet I will play with what is there now and just fart around with it I might try a infinity wall so there is not a background for the cam to pick up I will do a negative and positive to see what happens, it a bloody good program.

I whacked the slider to the max`s it was very very deep 6 m but what was at the end was really sharp and clean.

I will post picks if the infinity wall works and its just a second screen in the box and its just a cheap webcam with auto focus and zoom.

thank you for another one of your cool products and letting me play with it
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