Measurement and Analysis of Two Types of Chinese Martial Arts

• Main Authors: Tsung-Hua Li, 李宗樺
• Other Authors: 歐陽明
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/wpz563

碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 102 === In this study, we use the imaging technology and the hardware devices, which consist of human motion data and continuity of the time signal, a time series of data for each different sport, so that users can get the motion data of different properties, to show their movement status and motion effects. Through the use of three-dimensional imaging technology to obtain information on the depth camera, the actual size of the camera field of view can be analyzed through the scene; we can then get the camera screen and the conversion ratio from the real world, in order to make the user''s movement situation analysis. Our study includes the following sports status: The first is to calculate the velocity of a skeleton with joints, and the second is color-coded information to analyze the joint rotation angle, and the third is an analysis of the human body standing position, where the system calculates the opening angle and area between the legs. According to the measurement of physical properties, the use of different microprocessor can be used to analyze the motion data. Using the pressure gauge (strain gauge), a gyroscope, muscle potential sensors, we expect human actions can be more accurately measured. The first is a martial arts punching force, according to the physical force gauge to know direct contact. The second is a measure of the angle of rotation, the advantage of physical methods is that the environment is not restricted, and we can get more data from rotated joints. The third is muscle potential analysis, in this experiment; small changes in the muscle can be obtained . Our data are obtained from the human motion, and at each section we will capture velocity, joint coordinates, rotation, muscle potentials and other data. The experimental data analysis procedure, which has a certain degree of reliability, with a fast response time in the hardware, can give sufficient accuracy of motion data presented. We repeat these experiments from multiple users, and compare with the case of multiple sets of experimental data. We can observe the movement of the human body standing posture, where body weight is also relevant, and can be related to the stability of motion. Rotating joints during exercise, which is subject to compliance with the direction of the force, can be observed from the experimental data to show proportional increase or decrease. This rotational movement of the body and the stability are analyzed in this way: in the experimental data, we can observe that with a greater force action, a large instantaneous change in the joint is measured, and these are potential causes of sport injuries.