SYSTEM FOR CAPTURING A DOCUMENT IN AN IMAGE SIGNAL
First Claim
1. A device, comprising:
- an imaging subsystem for generating image data;
a first memory component for storing an input frame of image data; and
a processor configured for;
receiving the input frame from the first memory component;
combining information from two or more pixels in the input frame to generate a pixel in a reduced resolution frame having fewer pixels than the input frame;
attempting to identify, in the reduced resolution frame, transition pairs having differences between the pixels in the pair that exceed a pixel transition threshold; and
attempting to identify, in the reduced resolution frame, a linear feature between two or more identified transition pairs.
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Abstract
Devices, methods, and software are disclosed for capturing a frame of image data having a representation of a feature. In an illustrative embodiment, a device includes an imaging subsystem, one or more memory components, and a processor. The imaging subsystem is capable of providing image data representative of light incident on said imaging subsystem. The one or more memory components include at least a first memory component operatively capable of storing an input frame of the image data. The processor is in communicative connection with executable instructions for enabling the processor for various steps. One step includes receiving the input frame from the first memory component. Another step includes generating a reduced resolution frame based on the input frame, the reduced resolution frame comprising fewer pixels than the input frame, in which a pixel in the reduced resolution frame combines information from two or more pixels in the input frame.
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Citations
22 Claims
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1. A device, comprising:
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an imaging subsystem for generating image data; a first memory component for storing an input frame of image data; and a processor configured for; receiving the input frame from the first memory component; combining information from two or more pixels in the input frame to generate a pixel in a reduced resolution frame having fewer pixels than the input frame; attempting to identify, in the reduced resolution frame, transition pairs having differences between the pixels in the pair that exceed a pixel transition threshold; and attempting to identify, in the reduced resolution frame, a linear feature between two or more identified transition pairs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device, comprising:
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an imaging subsystem for generating image data; a first memory component for storing an input frame of image data; and a processor configured for; receiving the input frame from the first memory component; generating a reduced resolution frame having fewer pixels than the input frame; attempting to identify four corner points in the reduced resolution frame; if four corner points cannot be identified, generating a prompt signal via an output component; and if four corner points are identified, attempting to calculate a conversion of a two-dimensional quadrilateral defined by the four corners into a rectangular form in three dimensions. - View Dependent Claims (17, 18, 19)
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20. A method, comprising:
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receiving, with a processor, an input frame of image data generated by an imaging subsystem from a first memory component; combining, with a processor, information from two or more pixels in the input frame to generate a pixel in a reduced resolution frame having fewer pixels than the input frame; attempting, with a processor, to identify, in the reduced resolution frame, transition pairs having differences between the pixels in the pair that exceed a pixel transition threshold; and attempting, with a processor, to identify, in the reduced resolution frame, a linear feature between two or more identified transition pairs - View Dependent Claims (21, 22)
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Specification