Fast text caption localization on video using visual rhythm

Seong Soo Chun, Hyeokman Kim, Jung Rim Kim, Sangwook Oh, Sanghoon Sull

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)


In this paper, a fast DCT-based algorithm is proposed to efficiently locate text captions embedded on specific areas in a video sequence through visual rhythm, which can be fast constructed by sampling certain portions of a DC image sequence and temporally accumulating the samples along time. Our proposed approach is based on the observations that the text captions carrying important information suitable for indexing often appear on specific areas on video frames, from where sampling strategies are derived for a visual rhythm. Our method then uses a combination of contrast and temporal coherence information on the visual rhythm to detect text frames such that each detected text frame represents consecutive frames containing identical text strings, thus significantly reducing the amount of text frames needed to be examined for text localization from a video sequence. It then utilizes several important properties of text caption to locate the text caption from the detected frames.

Original languageEnglish
Title of host publicationRecent Advances in Visual Information Systems - 5th International Conference, VISUAL 2002, Proceedings
EditorsShi-Kuo Chang, Zen Chen, Suh-Yin Lee
PublisherSpringer Verlag
Number of pages10
ISBN (Print)3540433589
Publication statusPublished - 2002
Event5th International Conference on Visual Information Systems, VISUAL 2002 - Hsin Chu, Taiwan, Province of China
Duration: 2002 Mar 112002 Mar 13

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other5th International Conference on Visual Information Systems, VISUAL 2002
Country/TerritoryTaiwan, Province of China
CityHsin Chu

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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