System and method of determining if a surface is printed or a device screen
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01J-003/457
G01J-003/50
G06K-007/10
출원번호
US-0600026
(2017-05-19)
등록번호
US-10197446
(2019-02-05)
발명자
/ 주소
Giordano, Patrick Anthony
Colavito, Stephen J.
Good, Timothy
Van Horn, Erik
Kearney, Sean Philip
출원인 / 주소
HAND HELD PRODUCTS, INC.
대리인 / 주소
Additon, Higgins & Pendleton, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
234
초록▼
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; sc
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.
대표청구항▼
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: acqu
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; andbased 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. 2. The system of claim 1, wherein the surface contains a barcode, and wherein the scanner has barcode scanning capability. 3. The system of claim 1, wherein: the means to acquire a spectral wavelength signature of the surface comprises a diffractive element and a sensor element; andthe system is configured to acquire the spectral wavelength signature by capturing light from the surface, sending the captured light through the diffractive element, and using the sensor element acquire the spectral wavelength signature. 4. The system of claim 3, wherein the sensor element is selected from a linear imager and a two-dimensional sensor. 5. The system of claim 1, wherein: the means to acquire a spectral wavelength signature of the surface comprises colored-filters and a sensor element; andthe system is configured to acquire the spectral wavelength signature by capturing light from the surface, sending the captured light through colored filters, and using the sensor element to acquire the spectral wavelength signature. 6. The system of claim 1, wherein: the means to acquire a spectral wavelength signature of the surface comprises a two-dimensional imaging lens having intentional chromatic aberrations and a sensor element; andthe system is configured to acquire the spectral wavelength signature by capturing light from the surface, sending the captured light through the two-dimensional imaging lens, and using the sensor element to acquire the spectral wavelength signature. 7. The system of claim 1, wherein the means to compare the spectral wavelength signature to RGB triple-peak emission spectra is selected from: Spectral Angle Mapper software, Principal Component Analysis software, and Pearson correlation coefficient software. 8. The system of claim 1, comprising a laser scanner, wherein the system is configured to scan the surface with the laser scanner based upon the spectral wavelength signature not matching the RGB triple-peak emission spectra. 9. The system of claim 1, wherein the system is configured to: compare the spectral wavelength signature to known spectra selected from the spectra of sunlight, incandescent light, white LED light, warm-white fluorescent light, and fluorescent light; andscan the surface with the scanner in the illumination mode based upon the spectral wavelength signature corresponding to the known spectra. 10. The system of claim 1, wherein the means to acquire a spectral wavelength signature of the surface and the scanner have a same field of view. 11. A method, comprising: 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; andif 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. 12. The method of claim 11, wherein acquiring a spectral wavelength signature of a surface comprises: capturing light from the surface;sending the captured light through a diffractive element; andsensing the structure of the spectral wavelength signature with a sensing element. 13. The method of claim 11, wherein acquiring a spectral wavelength signature of a surface comprises: capturing light from the surface;sending the captured light through colored filters; andsensing the structure of the spectral wavelength signature with a sensing element. 14. A method, comprising: acquiring a spectral wavelength signature of a surface;comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra; andoperating 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. 15. The method of claim 14, wherein acquiring a spectral wavelength signature of a surface comprises: capturing light from the surface;sending the captured light through a diffractive element; andsensing the structure of the spectral wavelength signature with a sensing element. 16. The method of claim 14, wherein acquiring a spectral wavelength signature of a surface comprises: capturing light from the surface;sending the captured light through colored filters; andsensing the structure of the spectral wavelength signature with a sensing element. 17. The method of claim 14, wherein acquiring a spectral wavelength signature of a surface comprises: capturing light from the surface;sending the captured light through a two-dimensional imaging lens having intentional chromatic aberrations; andsensing the structure of the spectral wavelength signature with a sensing element. 18. The method of claim 14, wherein comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra step is accomplished using software selected from Spectral Angle Mapper software, Principal Component Analysis software, and Pearson correlation coefficient software. 19. The method of claim 14, wherein the surface contains a barcode, and wherein the scanner has barcode scanning capabilities. 20. The method of claim 14, wherein: comparing the spectral wavelength signature of the surface to RGB triple-peak emission spectra comprises comparing the spectral wavelength signature of the surface to known spectra, the known spectra being selected from the spectra of sunlight, incandescent light, white LED light, warm-white fluorescent light, and fluorescent light; andscanning the surface in illumination mode is based upon the spectral wavelength signature of the surface corresponding to the known spectra.
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