Title :
Automatic classification of TV news articles based on telop character recognition
Author :
Ariki, Y. ; Matsuura, K.
Author_Institution :
Dept. of Sci. & Technol., Ryukoku Univ., Ohtsu, Japan
Abstract :
The purpose of this study is to develop a multimedia database system for TV news video data. TV news video data consist of speech, characters and images. In this study, telop characters are recognized and given to the news articles as indices for classification. At first, telop frames which include telop characters are detected and then the telop characters are extracted and recognized. Through morphological analysis of the recognized telop characters, keywords are extracted which consist of more than two characters. Their keywords are used as indices to classify the TV news articles. We carried out experiments for 30 days of NHK 5 minutes news and obtained 95.4% telop character extraction rate, 81.4% character recognition rate and 83.8% article classification rate. We improved the article classification rate by 43.4% through character recognition improvement from 44.1% to 81.4%
Keywords :
character recognition; image classification; multimedia databases; performance evaluation; television; video databases; TV news article classification; TV news video database; character extraction; experiments; image classification; keyword extraction; morphological analysis; multimedia database; speech processing; telop character recognition; telop frames; Character recognition; Data mining; Database systems; Digital video broadcasting; Information retrieval; Multimedia databases; Multimedia systems; Satellite broadcasting; Speech; TV;
Conference_Titel :
Multimedia Computing and Systems, 1999. IEEE International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7695-0253-9
DOI :
10.1109/MMCS.1999.778210
