Charge coupled device based system and method for measuring proj

Details Charge coupled device based system and method for measuring proj Charge coupled device based system and method for measuring proj

1982-06-14

1984-10-30

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358107, 358139, 356384, H04N 962, H04N 718, H04N 702

Patent

active

044802641

ABSTRACT:
A system for measuring figures projected onto a charge coupled device (CCD) sums the data from a preselected number of adjacent pixels in a particular pixel line. The sum signal is divided by a full pixel signal to provide a mean pixel signal. The mean pixel signal is multiplied by a dimension per pixel value to provide a dimension signal representative of the dimension being measured. The dimension signal is compared with a reference dimension to determine the acceptability of the figure being measured.

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