Invention Grant
- Patent Title: Logo recognition in images and videos
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Application No.: US17672963Application Date: 2022-02-16
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Publication No.: US11861888B2Publication Date: 2024-01-02
- Inventor: Jose Pio Pereira , Kyle Brocklehurst , Sunil Suresh Kulkarni , Peter Wendt
- Applicant: Gracenote, Inc.
- Applicant Address: US CA Emeryville
- Assignee: Gracenote, Inc.
- Current Assignee: Gracenote, Inc.
- Current Assignee Address: US NY New York
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- The original application number of the division: US15172826 2016.06.03
- Main IPC: G06T7/60
- IPC: G06T7/60 ; G06V10/764 ; G06V10/82 ; G06T7/11 ; G06V10/46 ; G06F18/24 ; G06T7/33 ; G06V10/50

Abstract:
Accurately detection of logos in media content on media presentation devices is addressed. Logos and products are detected in media content produced in retail deployments using a camera. Logo recognition uses saliency analysis, segmentation techniques, and stroke analysis to segment likely logo regions. Logo recognition may suitably employ feature extraction, signature representation, and logo matching. These three approaches make use of neural network based classification and optical character recognition (OCR). One method for OCR recognizes individual characters then performs string matching. Another OCR method uses segment level character recognition with N-gram matching. Synthetic image generation for training of a neural net classifier and utilizing transfer learning features of neural networks are employed to support fast addition of new logos for recognition.
Public/Granted literature
- US20220172384A1 Logo Recognition in Images and Videos Public/Granted day:2022-06-02
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