Video-Shot-Detection

• Video shot detection in four algorithms: Histogram Intersect, Moment Invariant(Humoment), Motion Vector(Optical Flow), Twin Comparison(Based on Histogram).
• Input: video clip (or a sequence of decoded images)
• Output: frame number at which the lens switch occurs (lens mutation and lens gradient)

Usage

• Video Material：movie.mp4
• Histogram Intersect
  • Input in cmd: python color_hist.py
  • Output: images in similarResult folder
• Moment Invariant
  • Input in cmd: python humoment.py
  • Output: images in humomentDetectResult folder
• Motion Vector
  • Input in cmd: python opt_flow.py
  • Output: images in optResult folder
• Twin Comparison
  • Input in cmd: python twin_comparison.py
  • Output: images in HistTwinComparisonResult folder

Result

Results are based on my own parameters for these algorithms.

• Histogram Intersect (Accuracy 75.80%, Recall 69.84%)

• Moment Invariant (Accuracy 67.26%, Recall 71.43%)

• Motion Vector(Accuracy 34.57%, Recall 58.73%)

• Twin Comparison Based on Histogram(Accuracy 34.57%, Recall 57.14%)