page_title: Video copy detection
section_title: Content-based signature
hierarchical_section_title: Video copy detection / Techniques / Content-based signature
caption_attribution_description: English: Video Copy Detection Català: Detecció de còpies de vídeo.
context_page_description: Video copy detection is the process of detecting illegally copied videos by analyzing them and comparing them to original content.
  The goal of this process is to protect a video creator's intellectual property.
context_section_description: In this technique, a unique signature is created for the video on the basis of the video's content. Various video copy detection algorithms exist that use features of the video's content to assign the video a unique fingerprint. The fingerprint can be compared with other videos' fingerprints stored in a database.
  This type of algorithm has a significant problem: if various aspects of the videos' contents are similar, it is difficult for an algorithm to determine whether the video in question is a copy of the original or merely similar to it. In such a case (e.g., two distinct news broadcasts), the algorithm can return that the video in question is a copy.
caption: Video copy detection.
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