Title :
A 2-2 pull-downed film mode detection and treatment method with scrolling subtitles
Author :
Yuan, Ye ; Liu, Yuxuan ; Liu, Zhiheng ; Jiang, Xianzhou ; Wang, Feng
Author_Institution :
Dept. of Bus. Inf. Manage., Shanghai Inst. of Foreign Trade, Shanghai, China
Abstract :
In this paper we propose a 2-2 pull-downed film mode detection and treatment method considering scrolling subtitles to improve the feathering problem of scrolling subtitles. The method includes: First, the screen is separated into two areas: subtitle area and other area. Second, film mode is detected in other area. Third, in the subtitle area, scrolling subtitles are searched. If it is 2-2 pull-downed film mode and there are scrolling subtitles on this film, then traditional de-interlace method is used in subtitle area, and traditional film mode treatment is used in other area; If it is 2-2 pull-downed film mode and there are no scrolling subtitles on this film, then traditional film mode treatment is used in the whole area. If it is not 2-2 pull-downed film mode, then traditional de-interlace method is used in the whole area. Hardware simulations and FPGA prototyping demonstrate that the method is effective, the progressive frames can be reconstructed perfectly.
Keywords :
field programmable gate arrays; image reconstruction; image sequences; object detection; television broadcasting; video signal processing; 2-2 pull-downed film mode detection-treatment method; FPGA; analog television broadcasting; deinterlace method; film mode treatment method; progressive frame reconstruction; scrolling subtitle feathering method; video sequence; Arrays; Films; Motion pictures; Standards; TV; Video sequences; Weaving; 2-2 pull-downed film mode detection; 2-2 pull-downed film mode treatment; scrolling subtitle;
Conference_Titel :
Broadband Multimedia Systems and Broadcasting (BMSB), 2012 IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0293-7
Electronic_ISBN :
2155-504
DOI :
10.1109/BMSB.2012.6264277
