Study on Finger Pointers Using Gray Theory

In the present paper, we present a study focusing on the improvement of the operation of finger pointers, which are promising with respect to their potential for use as pointing devices in home environments. We developed a basic finger pointer and aimed at solving the following problems related to finger pointers: (1) instability and (2) time lag. For this purpose, the concept of prediction based on gray theory was applied to the finger pointer, and the relevant requirements were examined. The effectiveness of the proposed method was assessed through subjective evaluation, and the results indicated that all of the evaluated items were characterized by increased stability brought by the proposed technique. Using the proposed finger pointer together with the gray theory, we constructed a three-dimensional information presentation program whose operability was evaluated by using it as an electronic photo album, and the superiority of the proposed system was confirmed.