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Table 6 Angle between bones as input features. The position of the bones in the skeleton is shown in Fig. 5 (b)

From: Classification of body postures using smart workwear

Index

Bone A

Bone B

1

clavicle_left

upperarm_left

2

clavicle_right

upperarm_right

3

lumbar1

lumbar2

4

lumbar2

thoracic

5

pelvis_left

thigh_left

6

pelvis_right

thigh_right

7

sacral

lumbar1

8

thigh_left

leg_left

9

thigh_right

leg_right

10

thoracic

cervial

11

thoracic

clavicle_left

12

thoracic

clavicle_right

13

upperarm_left

arm_left

14

upperarm_right

arm_right