3d scanning

Scann3d, Kinect, Agisoft

Task:

The exercise consisted in scanning an object and rebuild it with a different technique.

Process:

3d scanning is an interesting tool to transfer volumes, spaces or scenes from the physical space to the virtual space through the use of digital and analog tools. In this post, I explored how this technique could be used for the process of prototyping architecture models with ready-made elements into digital designing platforms such as rhino.

  1. Phone scanning

Imagining the scenario that you are having a dinner and you get inspired so you start to prototype something with what you have around and you want to transfer that geometry into the digital world you could use a cell phone 3d scanner.

The procedure is to use an app such as scann3d and a paper that helps the app to measure the element:

After placing the object in the grid, the app tells the user in which parts of the object place the camera so she can take the information.

When the model is ready you can download it but it has a cost.

2. Kinect

In a second trial, with Alexey Smirnov imagining the scenario you are in a working place where you can have access to computers and instruments such as Kinect the 3d scanning platform from windows, you could create a model and start the development of the project from the existing object instead of drafting it from zero and the creating volumes by extruding the plans.

For this process we used the free software from windowsstore 3d scan and skanect and we designed a small volumetry made with the fragments of a tangerine.

The results where nonexistent since the 3d scanner from kinect cannot read small geometries as we thought. It seems to be more suitable for interior spaces, persons or scenes.

3. Agisoft

To continue with the exploration I used the software Agisoft who works thru “the process of photogrammetric processing of digital images and 3D spatial data generation” as it is described on their web page http://www.agisoft.com/, this means that with a serie of pictures the program superpose them and create a 3d model. To realize this exercise I used a tutorial they provide on their web page http://www.agisoft.com/index.php?id=32 and additionally a 30 days trial can be requested.

The first step is to open the program and upload the pictures

In a second step, it is necessary to mask the images with the use of selection tools, it is recommended to take the pictures with a clear background from a different color of the object so the quick selection tools can be used.

When all the pictures are masked in the workflow menu we must choose the align option so photos will be superposed to create a cloud of points in a tridimensional space

After the cloud is created we must transform it into a mesh

The program allow us to export the created mesh into Rhyno

Finally, we can integrate our 3d scanned geometry into an urban context digital model and continue with the design process introducing a ready made physical designed based geometry into a digital process that can contribute to achieving new ideas by the exploration of new paths where digital and physical design process can meet.

File:

https://drive.google.com/open?id=1ECq7lZQ-7S24io9Oa2yncV_U2LehNlLV

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