The invention discloses a semi-automatic image tagging method based on
semantics and content. The tagging method comprises the following steps: a feedback
image retrieval system based on
semantics and content is established; a model of the
system is expressed as (F, Q, R (fq, fd)) with a triple; a user submits an query based on keywords; the
system converts a keyword sequence into a group of semantic characteristics vector
Omega i', uses an arrangement function R (fq, fd)) for doing an query based on
semantics for all the images in a
database, and returns the query result to the user according to the arrangement; the user chooses relatively satisfactory images from the query result and feeds back to the system; the system again uses the arrangement function R (fq, fd)) for doing the query based on semantics or content or integrating the semantics and the content for all the images in a
database, finds out all the images which are similar to the images that the user is satisfied with, and simultaneously adjusts the weight of the tagging information that each image corresponds to. The invention has the advantages of high efficiency, high accuracy, and friendly interactive way.