Compressed Domain Features Extraction for Shot Characterization

In this work, we propose a system for shot comparison directly working on the MPEG-1 stream in the compressed domain, extracting both color, texture and motion features considering all frames with a reasonable computational cost, and results comparable to those obtained on uncompressed keyframes. In particular a summary descriptor for each Group Of Pictures (GOP) is computed and employed for shot characterization and comparison. The Mallows distance allows to match different length clips in a unified framework.

• Type: Conference
• Year: 2007
• Where: SAMT
• Authors: Costantino Grana, Roberto Vezzani, Daniele Borghesani, Rita Cucchiara
• Keywords: Reasonable Computational Cost, SAMT 2007, Shot Comparison, Uncompressed Keyframes