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Research on motion capture of dance training pose based on statistical analysis of mathematical similarity matching

Qingwen Chen
Qingwen Chen
, 
Abdullah Albarakati
Abdullah Albarakati
 y 
Lanlan Gui
Lanlan Gui
   | 22 nov 2021
Applied Mathematics and Nonlinear Sciences's Cover Image
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Publicado en línea: 22 nov 2021
Páginas: 127 - 138
Recibido: 17 jun 2021
Aceptado: 24 sept 2021
DOI: https://doi.org/10.2478/amns.2021.2.00053
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© 2021 Qingwen Chen et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Schematic diagram of computer vision classification.
Schematic diagram of computer vision classification.

Fig. 2

Least squares fitting curve.
Least squares fitting curve.

Fig. 3

Optical capture device hardware facilities.
Optical capture device hardware facilities.

Fig. 4

Flow chart of the optical operating system.
Flow chart of the optical operating system.

Fig. 5

3D data acquisition flowchart.
3D data acquisition flowchart.

Fig. 6

Method flow chart.
Method flow chart.

Fig. 7

Comparison of motion trajectories in a single direction between a single identification point.
Comparison of motion trajectories in a single direction between a single identification point.

Fig. 8

Plan view of human bone features.
Plan view of human bone features.

Fig. 9

Movement differences of the skeleton model.
Movement differences of the skeleton model.

Fig. 10

Timing diagram of left arm motion correlation parameters.
Timing diagram of left arm motion correlation parameters.

Discriminant vectors on the feature plane.

Feature plane Feature vector
Eigenvector left arm (P1) V1 = VLLarm × VLFarm
Right arm (P2) V2 = VRLarm × VRFarm
Left leg (P3) V3 = VLThigh × VLCrus
Right leg (P4) V4 = VRThigh × VRCrus
Head (P5) V5 = VLHead × VRHead
Chest (P6) V6 = VLChest × VRChest
Hip (P7) V7 = VLHip × VRHip

Correlation parameters of left arm gesture (0–1 s).

Test subject Sim (V1, VStand) Corr (01) Corr (08)
Standard object 0.6943 0.9729 1
Test object 0.7025 0.8299 0.9815

Determining the included angle on the characteristic plane.

Feature plane Geometric relationship θMax θMin
Left elbow (P1) θ1 = <VLFarm, VLLarm> 180° 40°
Right elbow (P2) θ2 = <VRFarm, VRLarm> 180° 40°
Left knee (P3) θ3 = <VLThigh, VLCrus> 180° 35°
Right knee (P4) θ4 = <VRThigh, VRCrus> 180° 35°
Head (P5) θ5 = <VRHead, VLhead > - -
Chest (P6) θ6 = <VRChest, VLChest > - -
Hip (P7) θ7 = <VRHip, VLHip> - -

The angle between the joints.

Geometric relationship θMax θMin
Left shoulder θ 8 = <VLFarm, VStand> 180° 0°
Right shoulder θ 9 = <VRFarm, VStand> 180° 0°
Left hip θ 10 = <VLThigh, VStand> 45° 0°
Right hip θ 11 = <VRThigh, VStand> 45° 0°
head θ 12 = <V5, VStand> 45° 0°
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Temas de la revista:
Life Sciences, other, Mathematics, Applied Mathematics, General Mathematics, Physics
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