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Table 2 Accuracy of the position estimation

From: Vision-aided brain–machine interface training system for robotic arm control and clinical application on two patients with cervical spinal cord injury

No.

Distance measured using optic tracker (m)

Distance error (m)

Error percentage (%)

1

0.489

0.0158

3.221

2

0.589

0.0003

0.045

3

0.669

0.0197

2.949

4

0.430

0.0397

9.239

5

0.596

0.0401

6.725

6

0.572

0.0490

8.578

7

1.018

0.0238

2.335

8

1.013

0.0069

0.686

9

0.410

0.0373

9.106

10

0.519

0.0172

3.320

Average

0.630 ± 0.217

0.0250 ± 0.0160

4.620 ± 3.490

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ISSN: 1475-925X

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