Multimodal Indexing of Multilingual News Video

Table 3

Results for keyword spotting in ticker text with master keyword list.

Story id	No. of distinct ticker texts	Total instances of keywords present	Keywords found
			On raw frame	On localized text region	After image super-resolution	After dictionary based correction
[1]	[2]	[3]	[4]	[5]	[6]	[7]
English Channels
E001	5	41	17	19	24	29
E002	4	26	8	9	16	20
E003	4	23	9	10	13	16
E004	6	40	18	19	25	31
E005	4	31	10	13	17	22
E006	7	46	21	23	28	34
E007	4	21	8	9	12	17
E008	1	1	1	1	1	1
E009	5	19	9	9	11	14
Subtotal—English	40	248	101	112	147	184
Retrieval performance—English (%)			40.73	45.16	59.27	74.19
Bangla Channels
B001	3	7	0	0	2	4
B002	3	7	1	1	2	4
B003	5	9	3	3	6	7
B004	3	6	1	1	2	3
B005	5	11	4	4	5	7
Subtotal—Bangla	19	40	9	9	17	25
Retrieval performance—Bangla (%)			22.5	22.5	42.5	62.5
Overall retrieval performance (%)			38.19	42.01	56.94	72.57