Content-Based Keyframe Clustering Using Near Duplicate Keyframe Identification

  • Authors:
  • Deepu Rajan;Ehsan Younessian

  • Affiliations:
  • Nanyang Technological University, Singapore;Nanyang Technological University, Singapore

  • Venue:
  • International Journal of Multimedia Data Engineering & Management
  • Year:
  • 2011

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Abstract

In this paper, the authors propose an effective content-based clustering method for keyframes of news video stories using the Near Duplicate Keyframe NDK identification concept. Initially, the authors investigate the near-duplicate relationship, as a content-based visual similarity across keyframes, through the Near-Duplicate Keyframe NDK identification algorithm presented. The authors assign a near-duplicate score to each pair of keyframes within the story. Using an efficient keypoint matching technique followed by matching pattern analysis, this NDK identification algorithm can handle extreme zooming and significant object motion. In the second step, the weighted adjacency matrix is determined for each story based on assigned near duplicate score. The authors then use the spectral clustering scheme to remove outlier keyframes and partition remainders. Two sets of experiments are carried out to evaluate the NDK identification method and assess the proposed keyframe clustering method performance.