Video text extraction using temporal feature vectors

Author

Tang, Xiaoou ; Luo, Bo ; Gao, Xinbo ; Pissaloux, Edwige ; Hangjiang Zhan

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

1

fYear

2002

fDate

2002

Firstpage

85

Abstract

A new caption text extraction algorithm that takes full advantage of the temporal information in a video sequence is developed. By detecting the (dis)appearance of caption text in a video stream, we first identify the video segment that contains the same caption text. Then using the gray-level vector traced across the segment as the feature vector for a pixel point, we can clearly separate a caption pixel from a background pixel for the entire segment.

Keywords

content-based retrieval; database indexing; feature extraction; image sequences; multimedia databases; video databases; video signal processing; background pixel; caption pixel; caption text extraction algorithm; gray-level vector; pixel point; temporal feature vectors; video segment; video sequence; video stream; video text extraction; Data mining; Feature extraction; Gunshot detection systems; Image edge detection; Indexing; Layout; Optical character recognition software; Robots; Video compression; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on

Print_ISBN

0-7803-7304-9

Type

conf

DOI

10.1109/ICME.2002.1035724

Filename

1035724