@INPROCEEDINGS{Yang2011,
  author = {Yang, Haojin and Siebert, Maria and Lühne, Peter and Sack, Harald
	and Meinel, Christoph},
  title = {Lecture Video Indexing and Analysis Using Video OCR Technology},
  year = {2011},
  booktitle = {7th Int. Conf. on Signal Image Technology and Internet Based Systems
	(SITIS 2011), Track Internet Based Computing and Systems},
  keywords = {hpi, videoanalysis},
}