Nonchronological video synopsis and indexing

Yael Pritch*, Alex Rav-Acha, Shmuel Peleg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

309 Scopus citations

Abstract

The amount of captured video is growing with the increased numbers of video cameras, especially the increase of millions of surveillance cameras that operate 24 hours a day. Since video browsing and retrieval is time consuming, most captured video is never watched or examined. Video synopsis is an effective tool for browsing and indexing of such a video. It provides a short video representation, while preserving the essential activities of the original video. The activity in the video is condensed into a shorter period by simultaneously showing multiple activities, even when they originally occurred at different times. The synopsis video is also an index into the original video by pointing to the original time of each activity. Video Synopsis can be applied to create a synopsis of an endless video streams, as generated by webcams and by surveillance cameras. It can address queries like "Show in one minute the synopsis of this camera broadcast during the past day". This process includes two major phases: (i) An online conversion of the endless video stream into a database of objects and activities (rather than frames). (ii) A response phase, generating the video synopsis as a response to the user's query.

Original languageEnglish
Pages (from-to)1971-1984
Number of pages14
JournalIEEE Transactions on Pattern Analysis and Machine Intelligence
Volume30
Issue number11
DOIs
StatePublished - 2008
Externally publishedYes

Keywords

  • Video indexing
  • Video summary
  • Video surveillance

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