METHOD AND MEANS FOR RECOGNIZING COMPLEX PATTERNS

Patent · Tue Dec 18 04:00:00 UTC 1962

OSTI ID:4746348

Hough, P V.C.

This patent relates to a method and means for recognizing a complex pattern in a picture. The picture is divided into framelets, each framelet being sized so that any segment of the complex pattern therewithin is essentially a straight line. Each framelet is scanned to produce an electrical pulse for each point scanned on the segment therewithin. Each of the electrical pulses of each segment is then transformed into a separate strnight line to form a plane transform in a pictorial display. Each line in the plane transform of a segment is positioned laterally so that a point on the line midway between the top and the bottom of the pictorial display occurs at a distance from the left edge of the pictorial display equal to the distance of the generating point in the segment from the left edge of the framelet. Each line in the plane transform of a segment is inclined in the pictorial display at an angle to the vertical whose tangent is proportional to the vertical displacement of the generating point in the segment from the center of the framelet. The coordinate position of the point of intersection of the lines in the pictorial display for each segment is determined and recorded. The sum total of said recorded coordinate positions being representative of the complex pattern. (AEC)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-008572
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 3069654
• OSTI ID: 4746348
• Country of Publication: United States
• Language: English

Related Subjects

DIAGRAMS
ELECTRONIC EQUIPMENT
IMAGES
INSTRUMENTS AND INSTRUMENTATION
PERFORMANCE
PLANNING
PULSES
RECORDING SYSTEMS