Assignment 9

3D Scanning

This week, I and Amalkrishna teamed up and 3D scanned an object using 3DF Zephyr.
3D scanning is the process of analyzing a real-world object or environment to collect data on its shape and possibly its appearance (e.g. colour). The collected data can then be used to construct digital 3D models. A 3D scanner can be based on many different technologies, each with its own limitations, advantages and costs. Many limitations in the kind of objects that can be digitised are still present.

Prerequisites

3DF Zephyr

3DF Zephyr is a commercial photogrammetry and 3D modeling software.
Photogrammetry means the use of photography in surveying and mapping. to ascertain measurements between objects.
3DF Zepyr is a complete photogrammetry pipeline software package that includes many post processing tools for post processing, measurements, 3D modeling and content creation. It allows 3D reconstruction from both photos or videos, by automatically extracting frames and selecting those most suitable for the computation.

A cellphone and a Subject

We used a toy wheel as our subject and took about 30-50 photographs in 360 degrees. one of the sample photographs is shown below

Taking Photos

Using 3DF Zephyr

Below are the screenshots of the process with steps

 

• Open 3DF Zephyr



• Create a new project with selections as shown.



• Import all the photos/videos taken.



• Set the render quality and it starts processing the images.

Final output

Points to be noted

• Number of photos taken determines the quality of render.
• Photos has to be taken at maximum different angles possible with little bit of swapping in area.
• First 3D model render was of bad quality because of the elements in the background.