Patent ID: 9449026
Filing Date: 2016-09-20
CPC Classification: G06F,G06K

Claim Text:
1. A system comprising: a processor in communication with computer-readable storage media; a down-sampling component to reduce resolution of a plurality of images to generate a plurality of down-sampled images; an index maintained in the computer-readable storage media, the index comprising a first set of direction-oriented points associated with a subset of image curves detected for the plurality of down-sampled images, individual of the direction-oriented points specifying a position of a particular point of an image and a direction from which an associated image curve passes the position, wherein the subset of image curves for a particular down-sampled image includes one or more salient curves identified by filtering the image curves detected for the particular down-sampled image to remove image curves having a length less than a predetermined threshold; a user interface component to receive a query curve as a search query input; and a salient curve component to: