This document discusses a student project to simulate human gait during stair climbing and batting using video analysis. The project involved identifying joint positions from marker coordinates in video frames and incorporating these into a Python simulation. Key phases of stair climbing and batting motions were modeled. Video processing involved importing footage, selecting frames, and finding marker positions to track major joints. The results provided insight into gait simulation using real-time data and exposure to video analysis software for tracking joint motion over multiple frames.

1. Introduction Concept Results Conclusions
Biomechanics
Group - 4
Prateek (12CE10034)
Harish Kant Soni (12CE31004)
Alekhya Banki (12CE31004)
Sonika Boyapalli (12CE10044)

2. Introduction Concept Results Conclusions
Gait is the pattern
of movement of
the limbs of animals,
including humans,
during locomotion over a
solid substrate.
Gait is the pattern of movement of
the limbs of animals, including humans,
during locomotion over a solid substrate.

3. Introduction Concept Results Conclusions
Detailed analysis of human gait is very essential in the field of medical science. Gait data
is especially required post joint replacement surgeries during rehabilitation programs.
 Our aim was to develop a gait simulation during climbing a staircase and bat swing
by considering the motion of all major joints in the body about which rotation of
limbs are expected to occur.
 The objective is met by considering the co-ordinates of the joints which are taken
from a video at different frames.

4. Introduction Results ConclusionsConcept
Step 1
• Problem Identification and decomposition
Step 2
• Finding co – ordinates of the joints with markers attached.
Step 3
• Incorporating the taken coordinates into a python code which results in
a ball and stick model.

5. Introduction Results ConclusionsConcept
Biomechanics of
Stairs climbing
1) Weight Acceptance

6. Introduction Results ConclusionsConcept
Biomechanics of
Stairs climbing
2) Pull Up

7. Introduction Results ConclusionsConcept
Biomechanics of
Stairs climbing
3) Forward continuance

8. Introduction Results ConclusionsConcept
Biomechanics of
Stairs climbing
4) Foot Clearance

9. Introduction Results ConclusionsConcept
Biomechanics of
Stairs climbing
5) The Follow through phase

10. Introduction Results ConclusionsConcept
Biomechanics of
Batting 1) Stepping

11. Introduction Results ConclusionsConcept
Biomechanics of
Batting 2) Landing

12. Introduction Results ConclusionsConcept
Biomechanics of
Batting 3) Swing

13. Introduction Results ConclusionsConcept
Biomechanics of
Batting 4) Impact

14. Introduction Results ConclusionsConcept
Biomechanics of
Batting
5) The follow through

15. Introduction Results ConclusionsConcept
Positions
of the
Markers
Right Elbow
Right Wrist
Left Shoulder
Neck
Right Knee Left Knee
Right Ankle
Left Ankle
Right toe Left toe
Left Wrist
Right Shoulder
Left Elbow
Waist

16. Results ConclusionsConcept
Data
Acquisition
Video
Processing
Output
Introduction
Live video of
climbing stairs and
swinging a bat is
recorded

17. Results ConclusionsConcept
Data
Acquisition
Video
Processing
Output
Introduction
The recording is done
keeping the sagittal plane
into consideration for
staircase climbing and
frontal as well as
transverse plane for
batting.

18. Results ConclusionsConcept
Data
Acquisition
Video
Processing
Output
Introduction
The location of the
major joints are
required to be
tracked.

19. Results ConclusionsConcept
Data
Acquisition
Video
Processing
Output
Introduction

20. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
Video received
 Video from the camera
collected in MOV format

21. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
Video Processing
 Importing the video into MovieMaker.
 Selecting the required frames and finding
the position of the markers.

22. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
S

23. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
S

24. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
S

25. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
S

26. Results ConclusionsConcept
Data
Acquisition
Output
Introduction
Video
Processing
S

27. Introduction Concept Conclusions
Keyboards were invented
to input the characters
engraved on the keys
Results
 The assignment discussed here provides a general insight on the
mechanism of gait simulation using real time data.
 The exposure to a video analysis software package led to the
determination of the joint centers at every frame of the video.