Prepared by George Holt Digital Photography Digital Image Capture Essentials.
Data Capture Using Digital Photography
description
Transcript of Data Capture Using Digital Photography
Support the spread of “good practice” in generating, managing, analysing and communicating spatial information
Data Capture Using Digital Photography
By: Giacomo Rambaldi and Jeroen verplanke
Unit: M10U04
Flow of the presentation
• Equipment needed• Preparing the model for data extraction• Capturing data using digital photography
Equipment needed
• High resolution digital single lens reflex (SLR) camera
• Top quality lens with adjustable zoom and manual zoom and focus options
• Tripod• Plumb line• Coloured yarns• Nails / push pins
Preparing the model for data extraction
• Place a grid on the 3D model
Image courtesy Giacomo Rambaldi/ARCBC
Preparing the model for data extraction
• Tilt the model• Prepare the shooting
environment
Images courtesy Giacomo Rambaldi/CTA
Data capture
• Parallel camera movement
Mov
emen
t of t
he
Dig
ital C
amer
a
3D m
odel
4 m distance
Image courtesy G. Rambaldi/ARCBC
Sequence of images
Camera movement
Sample of extracted images
Images courtesy Giacomo Rambaldi