Optics: measuring and testing – With sample preparation
Patent
1987-07-15
1988-11-08
McGraw, Vincent P.
Optics: measuring and testing
With sample preparation
2504591, 356402, 356372, G01N 100, G01N 2164, G01N 2127
Patent
active
047831669
ABSTRACT:
Two embodiments for enhancing the detection of a selected area on a surface that may produce specular reflection. In the first embodiment the selected area is coated with a material which will only reflect incident radiation over a narrow band of frequencies and the surface is irradiated with a broadband radiation source that includes the reflectance band of the coating. The irradiated surface is imaged on an imaging device such as a TV camera through a filter selected to reject all but the narrow band of frequencies reflected from the selected area. Further enhancement is provided by comparing the results with those from the same signals filtered by a filter that is the complement of the first. Standard signal processing can then be applied. The second embodiment involves coating the selected surface area with a material possessing the property of radiating energy at one frequency when irradiated by energy at another frequency; irradiating the surface with energy at that other frequency; and viewing the surface with a TV camera through a filter that passes the reradiated energy but blocks the irradiation energy. Complementary filtering could also be applied for further enhancement. Standard signal processing can then be applied to automatically identify the selected area.
REFERENCES:
patent: 3577885 (1971-05-01), Wells
patent: 3617744 (1971-11-01), Irish
patent: 3641344 (1972-02-01), Markle
patent: 3713741 (1973-01-01), Sheehan, III.
patent: 3748469 (1973-07-01), Molina
patent: 3904293 (1975-09-01), Gee
patent: 3965360 (1976-06-01), Sakasegawa et al.
patent: 3973129 (1976-08-01), Blumberg et al.
patent: 3994586 (1976-11-01), Sharkins et al.
patent: 4140397 (1979-02-01), Gara
patent: 4152723 (1979-05-01), McMahon et al.
patent: 4199219 (1980-04-01), Suzki et al.
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4281342 (1981-07-01), Veda et al.
patent: 4337566 (1982-07-01), DiMatteo et al.
patent: 4348803 (1982-09-01), Sasaki
patent: 4355447 (1982-10-01), Di Matteo et al.
patent: 4393311 (1983-07-01), Feldman et al.
Fogiel Max
McGraw Vincent P.
Robotic Vision Systems Inc.
LandOfFree
Arrangement for improving visual detection of painted areas rela does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for improving visual detection of painted areas rela, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for improving visual detection of painted areas rela will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-462010