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Speed Dreams Community • View topic - Modelling cars from real life.

Modelling cars from real life.

Discuss or share your car-related work here

Moderator: kilo

Modelling cars from real life.

Postby mungewell » Fri Nov 25, 2011 4:36 pm

This has been floating around in my mind for a while now, and since the Kinect's just went on sale I'm going to pick one up.... so can these be used to aid the process of modelling real-life cars by collecting a point cloud and 'smoothing' that down to surfaces?

The Kinect (in a single instant) will only get you a view from one point, and car sized turntables would be expensive. So can 'we' track the movement/position of a Kinect as it travels around a large object? I am thinking of a stand somewhat similar to a hospital 'drip' stand with the Kinect mounted sideways at the top, so that it can tilt to look up/down. The operator would push the stand around the object, raise/lower/tilt the Kinect and take a series of 'RGBD' pictures.

So maybe 2 optical mice tracking the motion of the floor would get up traverse/turn information, the Kinect's accelerometer could give the vertical tilt (it's mechanically constrained to one axis) and a linear encode or another mouse could get us vertical height changes.

Once we collect a point cloud of a few million points, does this really help us produce a simple/reduced polygon model? And of course there's also a fair bit of work producing a XML to describe the operation of the car...
Simon

PS. Terraroot's Tuk Tuk (http://i11.photobucket.com/albums/a151/ ... s/turn.jpg) made me post... ;-)
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Re: Modelling cars from real life.

Postby mungewell » Sat Nov 26, 2011 10:43 pm

Bestbuy now has $100 bucks of mine.... and I've been pissing around in python
mazda_scan.jpg

Once I got the 'libfreenet' libs/wrappers built it was only a few lines to grab a frame and dump to file and then convert to a point cloud (scans 3.5MByte).

There's obviously a lot of work in cleaning the pixels and properly calibrating.
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Re: Modelling cars from real life.

Postby TerraRoot » Sun Nov 27, 2011 5:48 pm

nice idea, hope it works out for you, not sure what my tuktuk did to inspire this....
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Re: Modelling cars from real life.

Postby W-E-C » Mon Dec 05, 2011 7:39 am

If you can get the quality of scaning for the whole car like with wheel it certainly would be a nice topology reference for modeling the car. For a direct conversion imho it looks too crude atm.

maybe this is any help? http://blenderartists.org/forum/showthr ... evelopment
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Re: Modelling cars from real life.

Postby rajonmestra » Mon Feb 27, 2012 11:52 pm

The popularity of kinect cars was actually engaged in the automotive industry these days. With lots of modelling cars out there, people truly appreciated the way it goes. I actually saw the VW series and was actually amazed with it. On other hand, they interior features since then could be easily installed with the used of manual.
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