Routing image frames to element detectors

• US 10,210,385 B2
• Filed: 04/09/2015
• Issued: 02/19/2019
• Est. Priority Date: 04/09/2015
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Rabelo, Andre, Marinho, Edwin, Rocha, Victor, Araujo, Victor, Mazoni, Luis
• Primary Examiner(s): Gilliard, Delomia L
• Application Number:
  US15/544,695
• Publication Number:
  US 20180032808A1
• Time in Patent Office: 1,412 Days
• Field of Search: None
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: G06K 7/1417 2D bar codes
• CPC Class Codes: G06T 1/0021 Image watermarking
• CPC Class Codes: G06V 10/95 structured as a network, e.g. client-server architectures
• CPC Class Codes: G06V 30/1983 Syntactic or structural pattern recognition, e.g. symbolic string recognition
• CPC Class Codes: G06V 30/242 Division of the character sequences into groups prior to recognition; Selection of dictionaries
• CPC Class Codes: G06V 30/413 Classification of content, e.g. text, photographs or tables
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation

Abstract

Examples disclosed herein relate to image recognition instructions to receive a plurality of image frames, route each of the plurality of image frames to at least one of a plurality of element detectors, determine whether the respective one of the plurality of element detectors has recognized an embedded element and, in response to determining that the respective one of the plurality of element detectors has recognized the embedded element, cause a resource associated with the recognized embedded element to be retrieved.

Claims

1. A non-transitory machine-readable storage medium comprising instructions for image recognition which, when executed by a processor, cause the processor to:

receive a plurality of image frames;

route each of the plurality of image frames sequentially to a respective one of a plurality of element detectors in a round-robin sequence or in an adaptive sequence;

determine whether one of the plurality of element detectors has recognized an embedded element; and

in response to determining that the one of the plurality of element detectors has recognized the embedded element, retrieve a resource associated with the recognized embedded element.

2. The non-transitory machine-readable medium of claim 1, wherein each of the plurality of element detectors is associated with a different element recognizer.

3. The non-transitory machine-readable medium of claim 2, wherein the different element recognizers associated with the element detectors comprise at least one of the following:

a watermark recognizer, a bar code recognizer, a matrix barcode recognizer, a text string recognizer, a uniform resource locator recognizer, a facial recognizer, an image recognizer, a stenographic halftone recognizer, and a microdot recognizer.

4. The non-transitory machine-readable medium of claim 1, wherein the instructions to route each of the plurality of image frames sequentially to the respective one of the plurality of element detectors comprises instructions to route the plurality of image frames sequentially to respective element detectors among the plurality of element detectors in the round robin sequence.

5. The non-transitory machine-readable medium of claim 1, wherein the instructions to route each of the plurality of image frames sequentially to the respective one of the plurality of element detectors comprises instructions to route each of the plurality of image frames sequentially to each of the plurality of element detectors in the adaptive sequence.

6. The non-transitory machine-readable medium of claim 1, wherein the instructions to receive the plurality of image frames further cause the processor to pre-filter each of the plurality of image frames.

7. The non-transitory machine-readable medium of claim 6, wherein the instructions to pre-filter each of the plurality of each frames comprise instructions to:

determine whether a first image frame of the plurality of image frames is in focus; and

in response to determining that the first image frame of the plurality of image frames is not in focus, discard the first image frame instead of routing the first image frame to a respective one of a plurality of element detectors.

8. A computer-implemented method for image recognition comprising:

registering, by a processor, a plurality of element detectors;

receiving a plurality of image frames from an image capture component;

selecting, for each of the plurality of image frames, a different destination element detector from among the plurality of element detectors;

for each of the plurality of image frames, routing the image frame to the selected destination element detector among of the plurality of element detectors;

determining whether one of the selected destination element detectors of the plurality of element detectors has recognized an embedded element; and

in response to determining that the one of the selected destination element detector of the plurality of element detectors has recognized the embedded element, pausing the routing of the image frames to the selected destination element detectors and retrieving a resource associated with the recognized embedded element.

9. The computer-implemented method of claim 8, wherein each of the plurality of element detectors is associated with a different element recognizer.

10. The computer-implemented method of claim 9, wherein the different element recognizers associated with the element detectors comprise at least one of the following:

a watermark recognizer, a bar code recognizer, a matrix barcode recognizer, a text string recognizer, a uniform resource locator recognizer, a facial recognizer, an image recognizer, a stenographic halftone recognizer, and a microdot recognizer.

11. The computer implemented method of claim 8, further comprising resuming routing frames to the one of the selected destination element detectors of the plurality of element detectors after the resource has been retrieved.

12. The computer implemented method of claim 8, wherein selecting the destination element detector of the plurality of element detectors comprises identifying a sequential order for selecting the different destination element detectors of the plurality of element detectors.

13. The computer-implemented method of claim 8, wherein selecting the different destination element detector of the plurality of element detectors comprises selecting each of the plurality of element detectors in an adaptive sequence.

14. A system for image recognition, comprising:

an image capture component;

a controller engine to;

receive a plurality of image frames associated with a document from the image capture component,

determine whether a first image frame of the plurality of image frames is in focus, and

in response to determining that the first image frame of the plurality of image frames is not in focus, discard the first image frame;

a router engine to;

select, for each of the plurality of image frames, a different destination element detector from the plurality of element detectors, and

route each respective image frame of the plurality of image frames to the selected different destination element detector of the plurality of element detectors; and

a detector engine to;

determine whether at least one of the plurality of element detectors has recognized an embedded element in the respective image frame of the plurality of image frames; and

in response to determining that at least one of the plurality of element detectors has recognized the embedded element, cause a resource associated with the recognized embedded element to be retrieved.