An attribute based news video indexing
MULTIMEDIA '01 Proceedings of the 2001 ACM workshops on Multimedia: multimedia information retrieval
Video text recognition using feature compensation as category-dependent feature extraction
ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 2
A degree-of-edit ranking for consumer generated video retrieval
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
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We introduce a telop character extraction method that consists of two steps: detecting a telop frame from a video sequence; and extracting telop character regions in the telop frame. Frames in which telops appear and disappear are detected regardless of background movement in the video sequence by selecting frames that have large intensity histogram differences from the previous frames and have large agreement in edge pixel positions with the subsequent frames. By segmenting the color space in a sequential manner, the method then quickly segments the detected telop frames without deteriorating segmentation results. It then filters out non-telop character regions obtained from the segmentation by using color, location, size and temporal movement features of the regions. We implement the proposed method on a PC and a workstation, and confirm that it can process live broadcast video data very effectively.