Ty Hedrick header graphic
Research
Join the lab
People
Publications
Software
Movies
Contact Info
blue line
Digitizing Tools
Hawkmoth flight simulation
Wing Image Analysis

blue line
DLTdataviewer2MATLAB tools for digitizing video files and calibrating cameras

Features:
  • Reads from AVI movie files 
  • Zooms in or out to any degree
  • Configurable automatic marker tracking
  • Displays up to 4 video streams
  • When in calibrated mode, displays the line of zero residual for the 2nd point given a 1st point
  • Allows user-specified video stream offsets
  • Change the gamma of the video images
  • Load, view and modify previously digitized points
  • Export camera view information to Maya
  • Requires MATLAB 7 or newer (full or student version), the Image Analysis toolbox is required for marker centroid identification
Citation update - a description of the digitizing package and some of the inner workings was recently published in Bioinspiration and Biomimetics; please cite this paper when you publish work using this software.

Downloadable package
with the MATLAB code and some documentation  - Recendly updated (Jan. 18, 2009) -
DigitizingTools_20090118.zip

Sample data: Calibrated video of a bat flying in a wind tunnel (29 megabytes)

Tutorials: These require either a recent version of Quicktime player (for the Quicktime versions) or the DivX video codec (for the avi versions of Tutorials 1 and 2) or the Xvid codec (Tutorial 3)
Tutorial 1: basic operations and 2d tracking: Quicktime version (31 megabytes) -or- avi version (29 megabytes)
Tutorial 2: 3D digitizing:  Quicktime version (31 megabytes) -or- avi version (35 megabytes)
Tutorial 3: 3D calibration:  Quicktime version (40 megabytes) -or- avi version (35 megabytes)

blue line

© Tyson Hedrick, 2009