Invention Grant
- Patent Title: Devices, systems, and methods for topological normalization for anomaly detection
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Application No.: US16828831Application Date: 2020-03-24
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Publication No.: US11321846B2Publication Date: 2022-05-03
- Inventor: Xiwu Cao , Bradley Scott Denney
- Applicant: Canon Virginia, Inc.
- Applicant Address: US VA Newport News
- Assignee: Canon Virginia, Inc.
- Current Assignee: Canon Virginia, Inc.
- Current Assignee Address: US VA Newport News
- Agency: Canon U.S.A., Inc. IP Division
- Main IPC: G06T7/12
- IPC: G06T7/12 ; G06T7/50 ; G06T7/136 ; G06T7/00

Abstract:
Some embodiments of devices, systems, and methods obtain at least one first image, wherein the at least one first image is defined in an image space; select at least one feature in the at least one first image; define a topology based on the at least one feature; generate a topology mapping between the topology and the image-space topology; obtain a plurality of anomaly scores, wherein each anomaly score of the plurality of anomaly scores was generated based on a respective detection area in a second image; map the plurality of anomaly scores to the topology based on the topology mapping; and normalize each anomaly score in the plurality of anomaly scores based on the respective neighboring anomaly scores in the topology, thereby generating normalized anomaly scores.
Public/Granted literature
- US20200311944A1 DEVICES, SYSTEMS, AND METHODS FOR TOPOLOGICAL NORMALIZATION FOR ANOMALY DETECTION Public/Granted day:2020-10-01
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