An assessment of video capturing outcome on six different grip models of camcorder using computer aided motion analysis

Movement analysis is the method which common in use recently to evaluate the motion object. In this study, laser light which was controlled by subject from the model pursued the chaotic motion target which was projected from the PC to the screen. Both data of two moving object velocity and distance of laser light were examined in spite of time response also taken into account. Six models of camcorder with different feature of grips were investigated. Eight right handed subjects handled and controlled the grip to track the target through laser light which was beamed from the laser pointer attached to the model. Both movement laser light beamed and target were recorded and acquisitioned using computer aided motion analysis into offline tracking. The results demonstrated that different shape of grip affected the time response of laser light when pursuing the target. Grasped grip with CCD camera angle adjustment and ball shape grip were indicated have a lack of response during the task performed and revealed long distance tracking. Not all size and shape of grips were suspected contribute the lost tracking. The different arrangement of view finder and CCD camera in the model might affect to the torque and influenced an operator to manipulate the control.