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Eq. (17)). Secondly, histogram-based descriptor turns out to be more efficient both
in mono-level and cross-level retrieval. Figures 9 and 10 depict the curves of inter-
polated average precision on HD video database produced in the framework of the
Mono-level 4 - 4
Mono-level 4 - 4
Mono-level 2 - 2
Mono-level 2 - 2
Mono-level 0 - 0
Mono-level 0 - 0
a)
b)
Fig. 9
Examples of mono-level queries. According to [26]. a) global object descriptors, b)
SIFT descriptors)(Figure continued on Fig. 10).
