Building visual vocabulary for image indexation and query formulation
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 fur 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 nor least, we have developed a digital album prototype to demonstrate query and retrieval on both home photos and stuck photos based on visual keywords.
visual vocabulary image indexation query formulation content-based retrieval image retrieval visual thesaurus