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photo translation? Answered

I have often on tv seen taking a photo and slicing it then able to rotate the slices to see a side view .did I lose you? I would like this tenique to take a photo of my head then use slices for a template for using planks of wood to lamate up .none of the photo programs I have have anything like this , so I am lost . As not even sure what the process is called . anyone with ideas for this?please help me with the photo and would gladly split the instructable credits for the bust .




9 years ago

You can't do this from a single photo, because the photo doesn't contain depth information (except implicitly by shadowing etc.). If you take a 360 degree video rotating around your head you can create the "convex hull"- the shape that you would get if you wrapped your head in a stretchy balloon or something, where concave areas like your eye sockets would appear flat. The milk scanner as posted below is a way of getting 3D "slices", but it's a bit impractical to submerge yourself in a bath full of milk, and it's still not great at surfaces with concave parts. There is an alternative- a piece of software called FaceGen. You take front and side photos of your head (like a convict :P), upload them into the program and mark specific points like your eyes and the corners of your nose. It then constructs a surprisingly accurate mesh of your face from what it knows about human face geometry. The free version doesn't save the model so all you can do is rotate it and otherwise play with it, but the full version will save the model to a variety of 3D modelling formats. I don't know a way to extract the model from the free version, but it could be useful to have a model of your head you can rotate and texture. Another method of getting 3D slices is to arrange a flat beam of light (ideally a scanning laser, through to a slit in the curtains on a sunny day) to fall sideways onto your face to light up the contour, and take photos from the front. This is labour-intensive but is used professionally and can give very good results. A quick google around pointed out a) there may be software like FaceGen with a free trial that would let you export a model b) you can replace the laser in the last suggestion with a computer projector projecting a single line of pixels. /essay

thank you for the ideas . I also found googleing facegen a program called blender , an open source for 3-d rendering .Downloaded both of them and will install and try to run them. Saving is not so important as the printing part . Let you know on the next step I get stuck on .

Need a bath-full of milk, but that's a technique I'd missed until today! L

You may have lost me, unless you're talking about medical scans? You can't do this with a 2D image (well not one anyway)


Well I could supply a 360 video mepg . I just looking for the process to make this work ,maybe think of a Victorian silhouette but in 3 d?

so you want to copy something in 3-d? Or do you want to copy something in 2-d that has thickness (if that makes sense :P)