A Method of Effective Text Extraction for Complex Video Scene

Table 1

Text extraction accuracy of four different kinds of video images.

Video type	Number of text regions	Accuracy (%)
		Otsu [17]	Sato et al. [18]	Lyu et al. [19]	Song et al. [20]	Shivakumara et al. [21]	Our; algorithm
Movie (121 frames)	432	60.9	69.8	86.9	72.4	78.6	92.1
News (85 frames)	261	62.1	70.3	89.3	75.3	79.4	92.4
Sport (103 frames)	368	41.0	59.4	84.1	57.2	64.1	89.8
Cartoon (86 frames)	254	68.7	81.2	90.7	81.8	88.2	96.5
Total	1315	58.2	70.1	87.8	71.7	77.6	92.7