Posts

Building Photogrammetry: Comparing Camera Results of iPad VS DSLR

DSLRfig1

If 800 people are working on the iPhone camera, would this mean that smartphone / tablet cameras will soon match the performance of DSLRs?

The short answer is “No”, as long as the camera sensor size is not increased.  A larger camera sensor allows the capture of more light and reduces noise levels. Their applicability to smartphones / tablets will always be limited, however, since a larger sensor size would also require a larger lens, which would not be very practical for a smart device. Read More

Photogrammetry in Cultural Heritage: Experiments with a Cloud Based Service and an iPad

Analysis of Basilica Notre Dame

Introduction

Can we document cultural heritage monuments with affordable tablets / smartphones and cloud-based photogrammetry services such as Autodesk Recap 360?  And how can the performance of these systems reach the accuracy and resolution levels of established devices?  What is the procedure for obtaining a 3D model of a monument by photos?  This blog post will try to present some of  the potential answers to these questions. Read More

PHOTOGRAMMETRY WITH LARGE STRUCTURES: EXPERIMENTS WITH AUTODESK RECAP 360, MESHLAB AND BUILDIT

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Figure 4. .obj model opened in Meshlab.

Photogrammetry, despite sounding rather complex, is basically  the stitching together of a series of photos to obtain a 3D model. In this post, we will analyze the results of a 3d model provided by Autodesk Recap 360. This post will just be a simple example; we will delve deeper in future posts for more detailed analyses. Read More