期刊論文

標題 Robust News Video Text Detection Based on Edges and Line-deletion
學年 99
學期 1
出版(發表)日期 2010/10/01
作品名稱 Robust News Video Text Detection Based on Edges and Line-deletion
作品名稱(其他語言)
著者 Yen, Shwu-Huey; Chang, Hsiao-Wei; Wang, Chia-Jen; Wang, Chun-Wei
單位 淡江大學資訊工程學系
出版者 Zographou: World Scientific and Engineering Academy and Society (W S E A S)
著錄名稱、卷期、頁數 WSEAS Transactions On Signal Processing 6(1), pp.186-195
摘要 This paper presents a robust and efficient text detection algorithm for news video. The proposed algorithm uses the temporal information of video and logical AND operation to remove most of irrelevant background. Then a window-based method by counting the black-and-white transitions is applied on the resulted edge map to obtain rough text blobs. Line deletion technique is used twice to refine the text blocks. The proposed algorithm is applicable to multiple languages (English, Japanese and Chinese), robust to text polarities (positive or negative), various character sizes (from 4×7 to 30×30), and text alignments (horizontal or vertical). Three metrics, recall (R), precision (P), and quality of bounding preciseness (Q), are adopted to measure the efficacy of text detection algorithms. According to the experimental results on various multilingual video sequences, the proposed algorithm has a 96% and above performance in all three metrics. Comparing to existing methods, our method has better performance especially in the quality of bounding preciseness that is crucial to later binarization process.
關鍵字 Information retrieval; Multiple frames integration; Video text; Text detection; Canny edge map; Black-white transition; Line-deletion
語言 英文
ISSN 1790-5052; 2224-3488
期刊性質 國外
收錄於 EI
產學合作
通訊作者 Yen, Shwu-Huey; Chang, Hsiao-Wei; Wang, Chia-Jen; Wang, Chun-Wei
審稿制度
國別 希臘
公開徵稿
出版型式 紙本