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Table 1 Names and symbols used for the Fourier descriptors in the present study

From: Fourier descriptors for broken shapes

Name

Symbol

Definition

Complex position

l k

Equation (6)

Granlund

d k

Equation (7)

Elliptic

I k ,J k ,K k

Equation (12)

Real position

–

Equation (13)

Centroid distance

R k

Equation (16)

Broken A

A k

Equation (19)

Broken B

B k

Equation (20)

Broken C

C k

Equation (22)