Method and apparatus for selecting between differently colored f

Details Method and apparatus for selecting between differently colored f Method and apparatus for selecting between differently colored f

1975-01-29

1976-11-30

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356 39, 356186, G01J 348

Patent

active

039945910

ABSTRACT:
A method and apparatus for analyzing features in a field which is scanned to produce video signals according to the spectral characteristics of the features. The apparatus incorporates two or more filters for producing different spectral characteristic images of the field which are then synchronously scanned using a plurality of separate scanners which are synchronized but which need not be so accurately registered point by point as is normally the case with color scanners. The invention provides for the use of an anti-coincidence detector circuit to associate video signal information arising from scanning non-registered images of the features in the field so that the information in the separate channels can be associated and made available for simultaneous comparison so that a ratio can for example be obtained of the integrated optical density measurements of a feature in respect of different color components of the image of the feature.
Another embodiment of the invention is described in which an additional parameter such as area can be measured and a feature classification performed taking both integrated optical density ratios and areas into account.
A third embodiment of the invention is described in which additional threshhold comparators are incorporated so that different areas of detected features can be selected for measurement.

REFERENCES:
patent: 3851156 (1974-11-01), Green

Affiliated with

Also associated with

Rating

Method and apparatus for selecting between differently colored f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for selecting between differently colored f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for selecting between differently colored f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1051509