System and method of determining if a surface is printed or a device screen
First Claim
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1. A system, comprising:
- means to acquire a spectral wavelength signature of a surface;
means to compare the spectral wavelength signature of the surface to RGB triple-peak emission spectra;
a scanner comprising an illumination mode and a non-illumination mode;
wherein the system is configured to;
acquire the spectral wavelength signature of the surface;
compare the spectral wavelength signature to the RGB triple-peak emission spectra; and
based on the comparison of the spectral wavelength signature to the RGB triple-peak emission spectra, scan the surface with the scanner in the non-illumination mode or the illumination mode.
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Abstract
A system and method of determining if a surface contains print or is a screen of a device is provided. The method is comprised of the steps of: acquiring a spectral wavelength signature of the surface; comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra; scanning the surface with an image-based scanner in non-illumination mode based upon the spectral wavelength signature of the surface corresponding to the RGB triple-peak emission spectra, and scanning the surface with an image-based scanner in illumination mode based upon the spectral wavelength signature of the surface not corresponding to the RGB triple-peak emission spectra.
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Citations
20 Claims
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1. A system, comprising:
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means to acquire a spectral wavelength signature of a surface; means to compare the spectral wavelength signature of the surface to RGB triple-peak emission spectra; a scanner comprising an illumination mode and a non-illumination mode; wherein the system is configured to; acquire the spectral wavelength signature of the surface; compare the spectral wavelength signature to the RGB triple-peak emission spectra; and based on the comparison of the spectral wavelength signature to the RGB triple-peak emission spectra, scan the surface with the scanner in the non-illumination mode or the illumination mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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acquiring a spectral wavelength signature of a surface; comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra; if the spectral wavelength signature of the surface does not correspond to RGB triple-peak emission spectra, scanning the surface in an illumination mode; if the spectral wavelength signature of the surface does correspond to RGB triple-peak emission spectra, scanning the surface in a non-illumination mode; and if comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra cannot determine whether the spectral wavelength signature of the surface corresponds to RGB triple-peak emission spectra, scanning the surface in a 50/50 duty cycle between the illumination mode and the non-illumination mode. - View Dependent Claims (12, 13)
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14. A method, comprising:
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acquiring a spectral wavelength signature of a surface; comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra; and operating a scanner to scan the surface in at least one of an illumination mode or a non-illumination mode based on the comparison of the spectral wavelength signature of the surface to the RGB triple peak emission spectra. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification