Abstract
With advances in digital imaging, the amount of digital images will increase tremendously. To locate relevant images in a large collection of images presents a challenging and genuine problem for content-based retrieval research. This paper presents a novel framework called visual keywords for image indexation and query formulation. Visual keywords are flexible and intuitive visual prototypes specified perceptually from sample domain images. A visual content is described and indexed by flexible spatial aggregation of the soft presence of visual keywords. A new query method based on visual constraints is also proposed to allow direct and explicit content specification. Last but not least, we have developed a digital album prototype to demonstrate query and retrieval on both home photos and stock photos based on visual keywords.
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