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TABLE 1. Results of denoising a single branch and entire crinoid in a raw image. Wavelet shrinkage refers to the minimum nonzero level coefficients in the wavelet decomposition. An M file containing the method of wavelet shrinkage used here as well as calculating accuracy and MCC are in the supplementary materials..

 

Wavelet Shrinkage

Accuracy

MCC

Tile None 0.8834 0.8171
  1 0.8829 0.8196
  2 0.8803 0.8171
  3 0.8763 0.816
  4 0.8832 0.8097
  5 0.8713 0.7932
Global None 0.76 0.26
  1 0.65 0.26
  2 0.46 0.24
  3 0.47 0.24
  4 0.47 0.24
  5 0.47 0.24
       
Local None 0.63 0.08
  1 0.73 0.15
  2 0.73 0.15
  3 0.73 0.14
  4 0.73 0.12
  5 0.73 0.11

TABLE 2. Morphometrics of crinoids. The length, distance to center (dist to center), width, and area are for each branch. The angle is the angle of the branch originating from each node.

 

A

B

C

D

 

Order 1

Order 2

Order 1

Order 2

Order 1

Order 2

Order 1

Order 2

Angle (⁰)

86 53 74 53 102 76 74 56

Length (cm)

0.81 0.91 1.92 0.99 0.72 0.71 1.37 1.18

Dist to center (cm)

1.26 2 2.39 2.9 1.33 1.73 1.56 2.73

Width (cm)

0.54 0.41 0.45 0.25 0.52 0.35 0.4 0.21

Area (cm2)

0.45 0.32 0.63 0.19 0.4 0.17 0.36 0.24

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