Methods and arrangements for localizing machine-readable indicia
AssigneeDigimarc Corporation
InventorsVojtech Holub, Utkarsh Deshmukh, Tomas Filler
Life of this patent
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Abstract
The present technology relates to image signal processing. One aspect of the present technology involves analyzing reference imagery gathered by a camera system to determine which parts of an image frame offer high probabilities of—relative to other image parts—containing decodable signal data. Another aspect of the present technology whittles-down such determined image frame parts based on detected content (e.g., a cereal box) vs expected background within such determined image frame parts.
Claims21
1-6. (canceled)
A method of processing image data, comprising:
- obtaining image data captured by one or more cameras;
- analyzing a subset of the image data to determine whether it represents a content object or background imagery, said analyzing yielding a determination;
- and
- based on the determination, operating a signal localizer to assess whether the subset likely includes a two-dimensional encoded signal carried by a plurality of print elements.
An image processing system comprising:
- one or more cameras positioned to capture imagery depicting an object moved past the one or more cameras;
- one or more light sources positioned to illuminate the object as it is moved past the one or more cameras;
- one or more processors configured to:
- determine whether a block of said imagery represents background or the object;
- and
- determine whether the block of said imagery likely depicts a two-dimensional dot pattern conveying encoded data, wherein determining whether the block likely depicts a two-dimensional dot pattern is performed only when the block is determined to represent the object.
A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:
- obtaining image data captured by one or more cameras;
- analyzing a subset of the image data to determine whether it represents a content object or background imagery, said analyzing yielding a determination;
- and
- based on the determination, operating a signal localizer to assess whether the subset likely includes a two-dimensional encoded signal carried by a plurality of dots.
Dependencies are inferred from the claim text.