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Group development project within PIFlab, started to be built in May 2018. Join us for the third meeting on Friday, May 25th at 5pm. We already had our first two meetings on May 11 and May 18, 2018.

We welcome everyone who wants to get (or those who even already have) experience and knowledge of geodetic structures, low-cost computer clusters, automatic photogrammetry, or 3D scanning and printing for humans and animals. Working in a diverse group and on an interdisciplinary project will certainly not be mundane. We do not place restrictions, we will gladly accept everyone, every idea or an insight.

The ongoing project will be publicly presented and tested for the first time at Mini Maker Faire Ljubljana, May 26, 2018.

Instructions for use

Enter the dome where you will be photographed with dozens of cameras at a time. Based on these images, your computer will calculate a 3D color model, which could be the basis for visualizing or 3D printing of the figurine of your body.

Our goals

3D scan of humans and animals. Understanding the practical possibilities of automatic 3D photogrammetry technology. A platform for further experiments in distributed perception.

It will be possible to assemble, disassemble and relocate the dome several times with a personal vehicle.

Potek izdelave

The group work will be carried out all Friday afternoons, in May 2018.

Mehanics and design

• Dome planninh - 3V 5/9 Kruschke, radius 2.4m, 25x4mm iron cylinder

• Manufacture, purchase and preparation of material for the dome.
• Assembling the dome.
• Design and 3D printing of RaspberryPi holders and lights.
• Installation of modules.
• Design and production of white tarp for light diffusion.
• Preparing scans for printing, 3D printing of the figurines.

Electronics

• Development and making of LED lights.
• Power supply

Computation

• Assembly and installation of the system on Raspberry Pi.
• Setting up a wireless network
• Development of cluster programs. Testing existing systems.
• Photo testing, focus, synchronization, transfer to PC.
• Testing of 3D reconstruction. Setting up a local workflow for serial scanning with free/open programs.
• Porting programs for 3D reconstruction programs to a Raspberry cluster.

Background and the idea in more detail

We will develop an effective platform for experiments with computer vision, light field and plenoptic function. On a prefabricated (with multiple dismantle option) structure in the shape of a dome and 3 meters high affordable units with cameras, LED lights and microcomputer RaspberryPi ZeroW will be installed on ten points. The elements will be installed into a cluster via wireless network. By doing so, these elements will be able make photo of whole-person in sync.

Such pictures are basis for 3D model reconstruction by using the automatic photogrammetry method. By using the extra high resolution cameras at the top of the dome we can also measure light reflections from different directions - anisotropy in plenoptic function, which can be useful in digitizing cultural heritage, for example. With the ability to film in sync, we gather a lot of motion data at one time, which can also create 3D 'bullet time' effects in the style of the movie Matrix.

S kupolo sledimo večim prosto dostopnim projektom podobnih struktur in namenov, pa tudi delu Paula Debeveca na UC Berkeley. Praktično uporabno in atraktivno vrednost ima kot učinkovit in dostopen 3D skener za celo človeško figuro, tudi v dinamičnih pozah. Kombinirano z drugimi 3D tehnologijami lahko pridobljene podatke izkoristimo za izdelavo fizičnih ali vizualnih modelov ljudi in podobno velikih predmetov. Kot osnova za nadaljne eksperimente v distribuiranem računalniškem zaznavanju pa ima potencial še razširiti možnosti uporabe in znanje skupnosti, ki ga bo razvijala. Vsa razvita programska oprema in dizajni strukture ter računalniških enot (jagod) grozda bodo objavljeni na spletu pod prosto licenco.

Kolofon

Produkcija: Ljudmila, laboratorij za znanost in umetnost. PIFlab dogodke podpirata JSKD in Oddelek za kulturo Mestne občine Ljubljana.

Aktivnost podpira mreža EASTN-DC, ki je sofinancirana s strani Evropske Unije, program Kreativna Evropa. [[category:]]