Falko Schindler

A Computer Vision Scientist from Bonn, Germany
Archive for July 2010

Visualizing Large 3D Point Clouds using Meshlab

2010-07-27 by Falko Schindler, tagged as structure-from-motion

Install Meshlab using aptitude: sudo aptitude install meshlab. Run from command line using meshlab or from the Graphics section of the Ubuntu menu.

Generating Dense Point Clouds using CMVS

2010-07-26 by Falko Schindler, tagged as structure-from-motion

Download CMVS and extract it to a directory of your choice, e.g. /usr/local/cmvs. Then in my case I needed to create a symbolic link liblapack.so.3 to liblapack.so within /usr/lib. You can add the CMVS directory to your PATH variable for easier access: export PATH=/usr/local/cmvs/program/main:$PATH.

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Structure from Motion using Bundler

2010-07-25 by Falko Schindler, tagged as structure-from-motion

  1. Download Bundler and extract it into a directory (to be referred to as BASE_PATH).
  2. Download the SIFT Keypoint Detector and extract sift to BASE_PATH/bin.
  3. Add BASE_PATH/lib to LD_LIBRARY_PATH.

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Extract Selected Video Frames using FFmpeg

2010-07-24 by Falko Schindler, tagged as structure-from-motion

FFmpeg can easily be used to extract single frames from video data, in my case to create input images from an aerial surveillance video for structure from motion reconstruction.

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