12-01-2009 11:17 AM
Hi to you all
I have a project next year ,we need for this a scan of Human on a bike (this for aerodynamic calc) we need to scan the human fast since on a bike a human is always moving a liitle
so if we can scan it for a few minute's that would be great.
We done test with hand scanner but that is tedius ,hard to do in other words
Does some one has a good sulution for a good scanner , and yes money is always a issue
Cees
12-01-2009 11:35 AM
i noticed many of the vehicle in the first DARPA grand chaleenge where using laser sacnners from "SLIK" (?SP?). I used one of those about 8 years ago (interface via serial port) to scan moving objects on a conveyor belt to deterimine how much packing material should be added to the box.
I hope that helps,
Ben
12-01-2009 11:45 AM
Hi ben
do you have a link to them? so i can look at there specs
As we tried several and mostly we get big hole's ( we need to create a solid from it ,for calc)
12-01-2009 12:07 PM
cees10 wrote:Hi ben
do you have a link to them? so i can look at there specs
As we tried several and mostly we get big hole's ( we need to create a solid from it ,for calc)
No but at this URL I found this image
If you look very closely at where you would expect to find a hood ornament, they have mounted the "SLIK" laser range finder. There is another one mounted on the roof.
Anothe avenue to chase down is the US Army is scanning recruits as the come in to automate the porcess of fitting them to their uniforms. I have no idea what hardware they use for that.
Have fun,
Ben
12-01-2009 12:34 PM
Could you use one camera and move it around the rider in the wind tunnel?....or better yet, mount the camera on a piece of metal (flexible rebar might do) and tie that to the handle bars...bend the rod in an arch shape over the rider so that it places the camera at roughly the distance from the handlebars to the back or the bicycle...plus a little bit... have the rider ride and periodically move the rod/camera to take images from many angles around himself/herself...itself (from the latin) Then use the vision tools to find the volume averages...
As with all good academic excersizes..."it is left to the student to perform the simple combination of volumes extracted from the images into a useful 'shape' which can then model the rider from an aerodynamic perspective."
Alternatively, since you are really looking for frontal and side shape averages, you might just concentrate on images from those directions.
Hope that helps.
Hummer1
12-01-2009 12:36 PM
Ben wrote:Another avenue to chase down is the US Army is scanning recruits as the come in to automate the porcess of fitting them to their uniforms. I have no idea what hardware they use for that.
Why has no one invented this for clothes shopping yet?
It only takes me about 5 minutes or so currently, but theres always room for improvement!
12-01-2009 12:41 PM
12-01-2009 05:26 PM
Well all the army stuff did not helped they cannot scan a human on a bike
As well the cost is $400.000
12-01-2009 05:44 PM
Ben wrote:i noticed many of the vehicle in the first DARPA grand chaleenge where using laser sacnners from "SLIK" (?SP?). I used one of those about 8 years ago (interface via serial port) to scan moving objects on a conveyor belt to deterimine how much packing material should be added to the box.
I hope that helps,
Ben
Actually the name is sick 🙂
They work pretty well, though for full 3D mapping you'd need multi-axis position inputs for the location of the scanner.
12-01-2009 05:46 PM
Aha
I use sick sensors
Well i ask them