We present a survey of pointing devices for wearable computers, which are body-mounted devices that users can access at any time.\r\nSince traditional pointing devices (i.e., mouse, touchpad, and trackpoint) were designed to be used on a steady and flat surface\r\nthey are inappropriate for wearable computers. Just as the advent of laptops resulted in the development of the touchpad and\r\ntrackpoint, the emergence of wearable computers is leading to the development of pointing devices designed for them. However,\r\nunlike laptops, since wearable computers are operated from different body positions under different environmental conditions\r\nfor different uses, researchers have developed a variety of innovative pointing devices for wearable computers characterized by\r\ntheir sensing mechanism, control mechanism, and form factor. We survey a representative set of pointing devices for wearable\r\ncomputers using an ââ?¬Å?adaptation of traditional devicesââ?¬Â versus ââ?¬Å?new devicesââ?¬Â dichotomy and study devices according to their control\r\nand sensing mechanisms and form factor. The objective of this paper is to showcase a variety of pointing devices developed for\r\nwearable computers and bring structure to the design space for wearable pointing devices. We conclude that a de facto pointing\r\ndevice for wearable computers, unlike laptops, is not likely to emerge.
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