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
Personal Author(s):
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
Descriptors:
Subject Categories:
- Human Factors Engineering and Man Machine Systems