Method and apparatus for detecting surface features of transluce

Image analysis – Applications – Animal – plant – or food inspection

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

382142, 209588, 348127, 348128, 348131, 348164, G06K 900

Patent

active

058450025

ABSTRACT:
The topographic surface features of a translucent object, such as a citrus fruit with a peel, are scanned and evaluated to permit the classification thereof according to its surface features. In the case of citrus fruit, the coarseness or pebbliness, puff and crease, ridge and valley, cuts, punctures, scrapes and splits, clear rot or sour rot of the peel is optically identified through digital analysis of the pixel scans and sorted based upon the peel surface quality. The object is classified by separating the scanned image of the fruit from the background image and removing the background image. A statistical evaluation of the image of the object as a whole, including both hemispheres of the object, is made to determine if there is any surface feature variation which might qualify as a defect or be a suitable basis upon which a classification judgment can be made. If there is, the object image is subject to high frequency or low pass filtering and thresholding of the pixel intensities to derive a refined image. The refined image is then tabulated or organized into neighborhoods contiguous to sharp transitions or gradual transitions to identify specific areas defined as blobs which, when compared against a given minimum area, shape requirement and/or width can be identified as one of the surface imperfections sought.

REFERENCES:
patent: 1943278 (1934-01-01), Thompson et al.
patent: 3549890 (1970-12-01), Keller
patent: 3768645 (1973-10-01), Conway et al.
patent: 3930994 (1976-01-01), Conway et al.
patent: 3932042 (1976-01-01), Faani et al.
patent: 4055834 (1977-10-01), Planke
patent: 4376951 (1983-03-01), Miyazawa
patent: 4608709 (1986-08-01), Hedler et al.
patent: 4741042 (1988-04-01), Throop et al.
patent: 4760270 (1988-07-01), Miller
patent: 5007096 (1991-04-01), Yoshida
patent: 5026982 (1991-06-01), Stroman
patent: 5164795 (1992-11-01), Conway
patent: 5174429 (1992-12-01), LaVars et al.
patent: 5321491 (1994-06-01), Summers et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for detecting surface features of transluce 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 detecting surface features of transluce, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting surface features of transluce will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2401629

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.