Patent ID: 9104942
Filing Date: 2015-08-11
Classification: G06K

Abstract:
1. A method for retrieving one or more objects from an image or video database with the use of perceptual bias levels where the one or more objects match a hand-drawn sketch, the method comprising: selecting one or more candidate features; for a chosen candidate feature among the one or more candidate features, estimating a perceptual bias level with respect to the chosen candidate feature of the sketch, so as to generate a perceptual bias level for each of the one or more candidate features; selecting one or more adopted features among the one or more candidate features by:  and searching in the database by a similarity measurement according to the one or more adopted features so as to identify the one or more objects, wherein a contribution of a chosen adopted feature in the similarity measurement is weighted by the perceptual bias level generated for the chosen adopted feature, the chosen adopted feature being any of the one or more adopted features; wherein the estimating of a perceptual bias level with respect to the chosen candidate feature of the sketch comprises: