Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: A tracking method for tracking a head-mounted device includes following steps. First pose data of the head-mounted device is tracked in an inside-out coordinate system. Second pose data of the head-mounted device is tracked in an outside-in coordinate system. A transformation relationship between the inside-out coordinate system and the outside-in coordinate system is calculated according to the first pose data and the second pose data. The first pose data in the inside-out coordinate system is transformed into third pose data in the outside-in coordinate system according to the transformation relationship. In response to that the second pose data is currently available, the second pose data is utilized to determine a device pose of the head-mounted device. In response to that the second pose data is currently unavailable, the third pose data is utilized to determine the device pose of the head-mounted device.

Abstract: A motion recognition device includes a sensing unit and a processing unit. The sensing unit generates a sense signal in response to a body motion occurring at a specific position on a user's body, wherein the sense signal includes a first sense signal portion and a second sense signal portion different from the first sense signal portion, and the body motion belongs to a motion segment of a motion type. The processing unit processes the sense signal to generate a motion parameter signal structure including a fusion signal of the first and the second sense signal portions, and recognizes the specific position to determine an effective reference signal for recognition of the motion type based on the motion parameter signal structure.

Abstract: A method of brain wave analysis is to be implemented using a brain wave measuring instrument and a medical device. The method includes transmitting a nerve stimulation signal to cerebrum of a patient, measuring the nerve stimulation signal through the body of the patient so as to obtain discharge time information, measuring a brain wave signal from a head portion of the patient, obtaining energy distribution information according to the brain wave signal, and calculating behavior information according to the discharge time information and the energy distribution information.

Abstract: A motion recognition device includes a sensing unit and a processing unit. The sensing unit generates a sense signal in response to a body motion occurring at a specific position on a user's body, wherein the sense signal includes a first sense signal portion and a second sense signal portion different from the first sense signal portion, and the body motion belongs to a motion segment of a motion type. The processing unit processes the sense signal to generate a motion parameter signal structure including a fusion signal of the first and the second sense signal portions, and recognizes the specific position to determine an effective reference signal for recognition of the motion type based on the motion parameter signal structure.

Abstract: A nerve stimulation system for a biological subject includes a stimulator to be disposed in the biological subject, sensing units to be disposed on the biological subject for obtaining biological information thereof, and an evaluation device. The evaluation device adjusts a parameter according to the biological information received from the sensing units, and generates a control signal indicating the parameter adjusted thereby. The stimulator wirelessly receives the control signal from the evaluation device, and generates a stimulation signal to stimulate the biological subject according to the parameter adjusted by the evaluation device.

Abstract: A method of brain wave analysis is to be implemented using a brain wave measuring instrument and a medical device The method includes transmitting a nerve stimulation signal to cerebrum of a patient, measuring the nerve stimulation signal through the body of the patient so as to obtain discharge time information, measuring a brain wave signal from a head portion of the patient, obtaining energy distribution information according to the brain wave signal, and calculating behavior information according to the discharge time information and the energy distribution information.

Abstract: An eyelash-adhesive dispensing pen includes a pen unit and an ejecting unit. The pen unit includes a pen body defining an inner hole, an adhesive outlet, and a fixed member disposed fixedly within the pen body and formed with a threaded hole. The ejecting unit includes a rotating shaft threaded within the threaded hole, and an adhesive pushing block disposed on the rotating shaft to define an adhesive receiving chamber for receiving an eyelash adhesive therein. The rotating shaft is rotatable relative to the fixed member to move the adhesive pushing block toward the adhesive outlet to thereby eject the eyelash adhesive out of the adhesive receiving chamber through the adhesive outlet.

Abstract: An eyelash case is adapted for containing a plurality of false eyelashes, and includes a case body and a handle plate. The case body includes abase and a cover plate that is disposed above the base and that is connected to the base to define an accommodating space therebetween. Each of the base and the cover plate has a transparent region. The transparent regions of the base and the cover plate are aligned with each other, and are adapted to permit the false eyelashes to be positioned therebetween. The handle plate is connected to the case body, and is misaligned from the transparent regions of the base and the cover plate.