![]() ![]() Each receiver was attached on the finger using Kinesiotex tape and liquid type plastic in order to prevent the receiver from sliding. Additionally, the adapter unit was modified with a stretch fabric band in order to fit any hand size. Sixteen receivers were used for each hand. We used three receivers in order to measure one finger, and one receiver was used for the back of each hand. ![]() The magnetic tracker can digitize the relative angle (Azimuth, Elevation, Roll) of receiver against a transmitter.Įach receiver was processed in order to fit to the finger. The magnetic tracker that is composed from one transmitter (23*28*16 mm) and sixteen receivers (9.6*9.6*9.6 mm) can digitize the distance (x, y, z) from a transmitter to a receiver. System Designįigure 1 shows the composition of the MoCap system for a hand. The cables of the receivers were replaced with special thin cables so as not to block the movement of the fingers. In this study, we developed the high accuracy Hand MoCap system by using the electromagnetic tracker (LIBERTY™ 16 system, Polhemus) that used small and light receivers. Therefore, it has been impossible to record the finger movements of a pianist that are high in speed and in accuracy. The most widely used tool for a hand MoCap has been CyberGlove (Immersion Co.) that can digitize only 80 percent of all hand movements. It is very difficult to measure all hand movements because each hand has twenty-seven bones and nineteen joints. Motion capture (MoCap) technique that can digitize a position and a posture as a time-series data is widely used in order to create animation and CG. This physiological fact indicates that human hand movements require very complicated control.Īs a result, our hand can perform high precision movements as an actuator. In the motor area, the area of the hand is almost the same as the total area of arm, torso and lower body. Motor area that controls the movements of the human body is divided functionally into each control region. Takeshi Miura, Hideo Tamamoto, Al Rodgers and Noboru YoshimuraĪkita University, Warabi-za Co., Akita Keizaihoka University, Polhemus 1. Kazutaka Mitobe, Takaaki Kaiga, Takashi Yukawa, The system uses small and light receivers. In this study, we developed the high accuracy Hand MoCap system by using the electromagnetic tracker LIBERTY™ 16 tracking system by Polhemus. Case Study: Motion Capture System for Hand Tracking Using Polhemus SystemĬase Study: Motion Capture System for Hand Tracking Using Polhemus System. ![]()
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