1. PositivesBuilder is a C# application used to help quickly generate positive images used for HarrTraining. The application can also mass produce negative images from a specified video file.

    The application can be downloaded at: http://files.davidjbarnes.com/Positives_Builder.zip

    # vimeo.com/11298354 Uploaded 696 Plays 0 Comments
  2. This is the result of our HaarTraining. A full overview of the training process for OpenCV can be found at: http://www.quotientrobotics.com/2010/04/opencv-haartraining-object-detection.html

    # vimeo.com/11300195 Uploaded 375 Plays 0 Comments
  3. Optical flow is a very important concept in image processing. It is the pattern of motion of objects, surfaces, edges, etc. OpenCV has embedded many methods that utilize the Lucas-kanade algorithm. They are cvGoodFeaturesToTrack (used to find meaningful features to track), cvFindCornerSubPix (refines a set of features), and cvCalcOpticalFlowPyrLK (does the actual optical flow calculations). This application demonstrates the fundamentals of optical flow by using cvCalcOpticalFlowPyrLK to track points defined by an end users mouse click.

    # vimeo.com/11300261 Uploaded 2,416 Plays 1 Comment

Computer Vision

David J Barnes

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