A High-Performance Videotext Detection Algorithm

In this paper, we propose adaptive texts detection and localization algorithms based on an edge extraction approach. The main techniques include edge filtering, adaptive threshold, the morphological operator and pixel correlation. With block-based processing, the rough texts can be detected by edge strength. The morphological operation is employed to refine the text region and to remove discrete non-text marks as well. The final text region can be accurately localized with a rectangle by horizontal differential approach. Simulations show that the proposed method can attain higher accuracy and lower false detection compared with the recent top paper.