1. 53 Markers and Skeleton Definitions

53 Markers descriptions

Item Number	Marker Name	Description
1	HeadTop	Top of the head
2	LHeadFront	Front left side of the head
3	LHeadBack	Back left side of the head
4	RHeadFront	Front right side of the head
5	RHeadBack	Back right side of the head
6	C7	Base of the neck at the back
7	T10	Symmetrical point on the back of the sternum
8	CLAV	Collarbone
9	STRN	Sternum (midpoint of the centerline of the upper body)
10	LShoulderFront	Front of the left shoulder
11	LShoulderBack	Back of the left shoulder
12	LUArmHight	Left upper arm
13	LElbow	Left elbow
14	LElbowIn	Inside of left elbow
15	LFoream	Outer side of the left forearm
16	LWristIn	Inside of the left wrist (thumb side)
17	LWristOut	Outer side of the left wrist
18	LHandIn	Base of the left index finger joint
19	LHandOut	2cm below the root of the little finger joint of the left hand (space for one marker)
20	RShoulderFront	Front of the right shoulder
21	RShoulderBack	Back of the right shoulder
22	RUArmHight	Right upper arm
23	RElbow	Right elbow
24	RElbowIn	Inside of right elbow
25	RFoream	Outer side of the right forearm
26	RWristIn	Inside of the right wrist (thumb side)
27	RWristOut	Outer side of the right wrist
28	RHandIn	Base of the right index finger joint
29	RHandOut	2cm below the root of the little finger joint of the right hand (space for one marker)
30	WaistLFront	Front of the left hip
31	WaistLSide	Side of the left hip (middle position)
32	WaistLBack	Back of the left hip
33	WaistRFront	Front of the right hip
34	WaistRSide	Side of the right hip (middle position)
35	WaistRBack	Back of the right hip
36	LThight	Left thigh
37	LKness	Outer side of the left knee
38	LknessIn	Inner side of the left knee
39	LShin	Left lower leg
40	LAnkleOut	Left ankle
41	LHeel	Heel of the left foot
42	LMT5	Outer side of the front of the left foot
43	LMT1	Inner side of the front of the left foot
44	LToe	Ball of the left foot
45	RThight	Right thigh
46	RKness	Outer side of the right knee
47	RKnessIn	Inner side of the right knee
48	RShin	Right lower leg
49	RAnkleOut	Right ankle
50	RHeel	Heel of the right foot
51	RMT5	Outer side of the front of the right foot
52	RMT1	Inner side of the front of the right foot
53	RToe	Ball of the right foot

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53 Skeleton description

Item Number	Skeleton Names	Associated Point	Parent Skeleton
1	Hips	WaistLFront, WaistLSide, WaistLBack, WaistRFront, WaistRSide, WaistRBack	GLOBAL
2	Spine	T10, STRN, WaistLBack, WaistRBack	Hips
3	Spine1	T10, STRN	Spine
4	Spine2	C7, T10, CLAV, STRN	Spine1
5	Spine3	C7, T10, CLAV, STRN	Spine2
6	LeftShoulder	C7, CLAV, LShoulderFront, LShoulderBack	Spine3
7	LeftArm	LShoulderFront, LUArmHigh, LElbow, LElbowIn	LeftShoulder
8	LeftForeArm	LForearm, LWristIn, LWristOut	LeftArm
9	LeftHand	LHandIn, LHandOut	LeftForeArm
10	RightShoulder	C7, CLAV, RShoulderFront, RShoulderBack	Spine3
11	RightArm	RShoulderFront, RUArmHigh, RElbow, RElbowIn	RightShoulder
12	RightForeArm	RForearm, RWristIn, RWristOut	RightArm
13	RightHand	RHandIn, RHandOut	RightForeArm
14	Neck	HeadTop、LHeadFront、RHeadBack、RHeadFront、RHeadBack	Spine3
15	Head	HeadTop、LHeadFront、LHeadBack、RHeadFront、RHeadBack	Neck
16	LeftUpLeg	LThigh、LKnee、LKneeIn	Hips
17	LeftLeg	LKnee、LKneeIn、LShin、LAnkleOut	LeftUpLeg
18	LeftFoot	LHeel、LMT5、LMT1	LeftLeg
19	LeftToeBase	LToe、LMT5、LMT1	LeftFoot
20	RightUpLeg	RThigh、RKnee、RKneeIn	Hips
21	RightLeg	RKnee、RKneeIn、RShin、RAnkleOut	RightUpLeg
22	RightFoot	RHeel、RMT5、RMT1	RightLeg
23	RightToeBase	RToe、RMT5、RMT1	RightFoot

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53 point schematic diagram of human body sticking points

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Schematic diagram of real sticking points

Front full body view

Front Head Top View

Upper body view

Front view of legs

Back body view

Back view

Left arm view

Right arm view

Left arm bending view

Right arm bending view

Hand detail drawing

Hand bending details

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53 points and precautions for human body

1. There are 5 points on the head: one at the highest point on the top of the head, and the other 4 points are marked in the front, back, left, and right respectively. The points on the front, back, left, and right should not be completely symmetrical, and the point on the top of the head should be offset to make it different from the other 4 points.

2. There are 8 points on the upper torso: 1 point at the collar (clavicle position), 1 point at the midpoint of the front centerline (sternum), 1 point at the intersection of the spine and shoulder line (neck end), 1 point at the midpoint of the back centerline at the same level as the center of the front centerline, and 1 point at the front and back of the left and right shoulders respectively.

3. There are 8 points on the upper body: 1 point on the collar (clavicle position), 1 point at the midpoint of the front centerline (sternum), 1 point at the intersection of the spine and shoulder line (neck end), 1 point at each midpoint of the back centerline in the same horizontal plane as the center of the front centerline, and 1 point at the front and back of the left and right shoulders.

4. There are 6 points at the waist: 2 at the front of the hips, 2 symmetrically at the back and front with the rear point slightly higher than the front point, and 1 on each side asymmetrically, with one slightly forward and the other slightly backward.

5. There are 8 points on the legs: 1 on the middle and outer sides of each thigh, with the point on the left thigh pointing upwards in the middle and the point on the right thigh pointing downwards in the middle, which is asymmetrical to the right thigh.

6. There are 10 points on the feet.One marker in front of the front foot, two at the bending joint of the front foot (ensuring that the inner marker is farther forward than the outer marker), one at the ankle, one at the heel, and the two markers on both sides of the front foot should be on the same plane.Maintain the same height of the attachment points on both sides of the left and right ankles and front soles as much as possible.

7. If there is an issue with the occlusion of the elbow joint marker, place the inner elbow joint marker slightly above the elbow joint, behind the arm, rather than inside the elbow joint.

8. If you encounter issues with knee marker blocking, place the inner knee marker slightly forward rather than on the inner knee.

9. Keep the height of the attachment points on the left and right waists, knees, and ankles as consistent as possible.

10. When flipping the wrist and forearm, if recognition is not possible, check and adjust the attachment points of the forearm. Each point on the left and right forearms is asymmetrical, with one point in the middle of the left forearm and one point in the middle of the right forearm, both located on the outside. Do not attach them in the middle. When attaching points in this area, the actor can bend their arms upwards and place them on their shoulders to adjust the attachment points of the forearm. The distance between the attachment point on the forearm and the inner attachment point on the wrist (WristIn) should be greater than the distance between the attachment point on the forearm and the outer attachment point on the wrist (WristOut).

11. Secure areas that are prone to loosening and wrinkling with straps, such as the waist, upper arms, wrists, and palms.