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[93870] Artykuł: IMPROVED QUERY BY APPROXIMATE SHAPES IMAGE RETRIEVAL METHODCzasopismo: International Journal of Computer Science & Applications Tom: 16, Zeszyt: 1, Strony: 68-85Opublikowano: 2019 Liczba arkuszy wydawniczych: 0.80 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacje w czasopismach spoza listy 2019 Punkty MNiSW: 5 Pełny tekst Keywords: CBIR  sketch  multimedia databases.  |
In this paper we present a new sketch-based Content Based Image Retrieval method. The main idea of the algorithm is based on representation of objects using a set of predefined shapes, called primitives: line segments, arches, polylines, polygons, polyarches (a chain of connected arches) and arc sided polygons (a looped chain of connected arches). Each type is defined by its attributes - for example as a line segment attribute its slope is used and for an arc its angle. To improve the efficiency of the shapes extraction from the image, the HSL color space is used. After detection, all shapes are connected into a graph in order to store also the mutual relations between them. As the storage for graphs, a structure based on a tree is used. In order to reduce the height of the tree, a special types of leaf nodes are used.