Position detecting method and apparatus

Details Position detecting method and apparatus Position detecting method and apparatus

1981-03-02

1985-10-15

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358101, 356400, 382 30, H04M 718

Patent

active

045478007

ABSTRACT:
There is provided a method of detecting any positional deviation of a workpiece from a reference position with the aid of an image sensor. First, a sample workpiece is put at the predetermined position, and is detected by the image sensor to provide reference image information. Likewise, a workpiece under inspection is detected by the image sensor to provide workpiece image information. The reference information is subjected to a parallel transformation and/or rotation and is compared with the workpiece image which remains in the original state, to detect the correlation degree between the two sets of information. The detection of the correlation degree is repeated for each incremental parallel transformation and/or rotation of the reference information. The maximum correlation degree is selected from among the accumulated correlation degrees, whereby the positional deviation of the workpiece, if any, from the reference position is represented by the amount and the direction of the parallel transformation and/or rotation which give the maximum correlation degree.

REFERENCES:
patent: 3104369 (1963-09-01), Rabinow et al.
patent: 3492646 (1970-01-01), Bene et al.
patent: 3532807 (1970-10-01), Webb
patent: 3618742 (1971-11-01), Blanchard
patent: 3644889 (1972-02-01), Skenderoff et al.
patent: 3710323 (1973-01-01), Andrews et al.
patent: 3717848 (1973-02-01), Irvin et al.
patent: 3727183 (1973-04-01), LeMay
patent: 3760357 (1973-09-01), Inose et al.
patent: 3766355 (1973-10-01), Kottkamp
patent: 3801775 (1974-04-01), Acker
patent: 3803553 (1974-04-01), Nakano et al.
patent: 3811110 (1974-05-01), Inose et al.
patent: 3815090 (1974-06-01), Muenchhausen
patent: 3831146 (1974-08-01), Rundle
patent: 3840739 (1974-10-01), Coulter
patent: 3845466 (1974-10-01), Hong
patent: 3852573 (1974-12-01), Dolch
patent: 3878509 (1975-04-01), Kikuchi et al.
patent: 3883848 (1975-05-01), Minck et al.
patent: 3955072 (1976-05-01), Johannsmeier et al.
patent: 4021840 (1977-05-01), Ellsworth et al.
patent: 4079416 (1978-03-01), Faani et al.
patent: 4148061 (1979-04-01), Lemelson
patent: 4200861 (1980-04-01), Hubach et al.
patent: 4203132 (1980-05-01), Schmitt et al.
patent: 4212031 (1980-07-01), Schmitt et al.
patent: 4233625 (1980-11-01), Altman
patent: 4305097 (1981-12-01), Doemens et al.
patent: 4334241 (1982-06-01), Kashioka et al.
patent: 4352125 (1982-09-01), Goth

Affiliated with

Also associated with

Rating

Position detecting method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position detecting method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position detecting method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2432025