Accession Number:

ADA064823

Title:

Measurement of the Lengths of Digitized Curved Lines.

Descriptive Note:

Interim rept.,

Corporate Author:

MARYLAND UNIV COLLEGE PARK COMPUTER VISION LAB

Report Date:

1978-09-01

Pagination or Media Count:

32.0

Abstract:

An examination is made of methods of measuring the lengths of arbitrarily shaped smooth curves from their quantized representations, both in the absence and in the presence of noise. For 4-way encoded curves in the absence of noise, the length of the underlying smooth curve can be accurately assessed as a constant multiplied into n, the number of direction vectors in the curve, or as a function of n and the number of corners in the curve. Good measurements can also be obtained in the presence or absence of noise by means of an m-step polygon measure, or after direction or curvature smoothing. The methods are explained and their merits are compared. Author

Subject Categories:

  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE