Feature-based signal localization in digital capture systems
AssigneeDigimarc Corporation
InventorsTomas Filler, Vojtech Holub
Life of this patent
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Abstract
The present disclosure provide technology for encoded signal localization. One claim recites an apparatus comprising: memory for buffering image data, the image data having been captured with a camera and depicting product packaging or a product label; one or more processors programmed for: generating a spatial domain feature set representation of a portion of image data; evaluating the spatial domain feature set with a classifier to predict whether the portion of image data includes a transform domain encoded signal. Of course, other claims, and various combinations and embodiments are disclosed in this patent document.
Claims28
A method comprising:
- obtaining data representing optically captured imagery, the optically captured imagery depicting packaging or a label including an encoded signal, the encoded signal including a synchronization signal that is detectable in a transform domain;
- generating a feature set of the data representing the optically captured imagery, the feature set representing the optically captured imagery in a spatial domain;
- employing a classifier to predict the presence of the synchronization signal in a transform domain from the feature set in the spatial domain.
An apparatus comprising:
- memory for buffering image data, the image data having been captured with a camera and depicting product packaging or a product label;
- one or more processors programmed for:
- generating a spatial domain feature set representation of a portion of image data;
- evaluating the spatial domain feature set with a classifier to predict whether the portion of image data includes a transform domain encoded signal.
A non-transitory computer readable medium comprising instructions stored therein, said instructions configure one or more processors for:
- obtaining data representing optically captured imagery, the optically captured imagery depicting packaging or labeling including an encoded signal, the encoded signal including a synchronization signal that is detectable in a transform domain;
- generating a feature set of the data representing the optically captured imagery, the feature set representing the optically captured imagery in a spatial domain;
- predicting the presence of the synchronization signal in a transform domain from the feature set in the spatial domain, said predicting utilizing a classifier.
Dependencies are inferred from the claim text.