A study on caption recognition for multi-color characters on complex background

Yutaka Katsuyama, Akihiro Minagawa, Yoshinobu Hotta, Jun Sun, Shinichiro Omachi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

we propose a caption recognition method for multicolor characters on complex background. Caption characters are used for an efficient search on a large amount of recorded TV programs. In the caption character recognition, the caption appearance section and the area is extracted, the character strokes are extracted from the area, and recognized. This paper focuses on caption character strokes extraction and recognition for multi-color characters on complex background which is a very difficult task for the conventional methods. The proposed method extracts decomposed binary images from input color caption image by color clustering. Then character candidates that are composed of combination of connect components are extracted by using recognition certainty. Finally, characters are selected by beyond-color Dynamic Programming method in which weight on recognition certainty and character alignment are used. In the character recognition evaluation of one-line multi-color character string on a complex background, a great improvement was achieved from a conventional technique that can recognize only one-color characters on complex background image.

本文言語English
ホスト出版物のタイトルProceedings - 2012 IEEE International Symposium on Multimedia, ISM 2012
ページ401-407
ページ数7
DOI
出版ステータスPublished - 2012
外部発表はい
イベント14th IEEE International Symposium on Multimedia, ISM 2012 - Irvine, CA, United States
継続期間: 2012 12 102012 12 12

出版物シリーズ

名前Proceedings - 2012 IEEE International Symposium on Multimedia, ISM 2012

Conference

Conference14th IEEE International Symposium on Multimedia, ISM 2012
国/地域United States
CityIrvine, CA
Period12/12/1012/12/12

ASJC Scopus subject areas

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • コンピュータ ビジョンおよびパターン認識
  • ソフトウェア

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