US 2016/0110605 A1Published application

Systems and methods for image-feature-based recognition

AssigneeGeeNee UG (haftungsbeschraenkt)

InventorsPhilipp HOLZSCHNEIDER, Thorsten Otto Wolfgang MAGERS, Hannes PRIEHN

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Abstract

Methods and systems are described herein that allow a user to capture a single image snapshot from video, print, or the world around him or her, and obtain additional information relating to the media itself or items of interest displayed in the snapshot. A fingerprint of the snapshot is used as a query and transmitted to the server. Image Feature-Based Recognition, as described herein, uses a feature index to identify a smaller set of candidate matches from a larger database of images based on the fingerprint. Novel methods and systems using a distance metric and a radical hash table design exploit probabilistic effects and allow distinct image features to be preferred over redundant ones, allowing only the more distinctive data points to remain resident within the index, yielding a lean index that can be quickly used in the identification process.

Claims19

Dependent claims

A server for determining information relating to an image captured by a mobile device, the server comprising a processor for executing one or more modules comprising:

a query receiving module for receiving, from the mobile device, a query including a plurality of query image feature descriptors associated with the captured image;
a candidate feature descriptors retrieval module for:
determining, for at least one of the query image feature descriptors, a plurality of first addresses using a plurality of functions, and
determining, within an address space associated with the plurality of first addresses at a reference image database, a number of duplicate reference image feature descriptors, wherein a plurality of duplicates of at least one reference image feature descriptor is mapped using the plurality of functions to at least one second address at the reference image database;
a candidate images retrieval module for selecting one or more reference image feature descriptors based on the determined number of duplicate reference image feature descriptors;
wherein, based on the selected reference image feature descriptors, the server is further configured to perform the steps of:
determining information associated with the selected reference image feature descriptors, and
providing the information associated with the selected reference image feature descriptors to the mobile device.

5 more elements

A computer-implemented method for determining information relating to an image captured by a mobile device, the method comprising:

receiving, from the mobile device, a query including a plurality of query image feature descriptors associated with the captured image;
determining, for at least one of the query image feature descriptors, a plurality of first addresses using a plurality of functions;
determining, within an address space associated with the plurality of first addresses at a reference image database, a number of duplicate reference image feature descriptors, wherein a plurality of duplicates of at least one reference image feature descriptor is mapped using the plurality of functions to at least a second address at the reference image database;
selecting one or more reference image feature descriptors based on the determined number of duplicate reference image feature descriptors;
determining information associated with the selected reference image feature descriptors;
and
providing the information associated with the selected reference image feature descriptors to the mobile device.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/968,524Filed 14 Dec 2015
Priority: 10 Feb 2014
Published: 21 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 16/5838
Using metadata automatically derived from the content: using colour
G06F 16/51
Of still image data: indexing; Data structures therefor; Storage structures
G06F 18/22
Analysing: matching criteria, e.g. proximity measures
G06T 11/60
Two-dimensional [2D] image generation: creating or editing images; Combining images with text

Family

Application61/937,859Us provisional application · filed 10 Feb 2014
Application14/619,045Continuation · filed 10 Feb 2015
Application14/692,234Continuation · filed 21 Apr 2015
Application14/968,524Continuation
US 2015/0227557 A1Published application
US 2015/0227796 A1Published application
US 9,122,706 B1Related patent
US 9,230,172 B2Related patent
US 9,946,932 B2Related patent
US 2016/0110605 A1This patent

From the US filing history. Foreign family members aren’t listed.