Control of a Brick-Breaking Game Using Electromyogram

Abstract

Abstract-We aim to design a human-interface system to control a brick-breaking game using electromyographic (EMG) signals elicited by wrist movements. By measuring EMG signals, it is possible to predict the next stage of movement or force before motion. We filtered EMG signals through a finite impulse response filter with a cut-off frequency of 2.2 Hz. The resulting signal is very similar to the actual tension. We calculated subtraction between flexor and extensor muscles to obtain movement of the wrist. After simple calibration, the participant was able to control a paddle to break bricks in real time using wrist movements. Consequently, we succeeded in controlling the paddle of the game. The proposed system is expected to use as a rehabilitation tool or an entertainment system.

Development of Surface EMG Game Control Interface for Persons with Upper Limb Functional Impairments

“…Due to the symmetrical and/or near symmetry of the neck motion, rotation produces a counterclockwise (quasi-tension) effect on the EMG data, and the EMG signal is minimal when not rotating. According to a derivation in [43], the estimation of the ith neck angle can be calculated by taking the difference between the processed EMG of left and right SCM muscles as described in (1). In this case, X 1 and X 2 are the processed EMGs of the left and right SCM, respectively.…”

“…EMG as a control interface for games can be categorized in various degrees of freedom (DoF) or control dimensions [42]. Single click (e.g., in firing command) [21,23,43], 1 DoF (e.g., in left and right movement) [26,27], 2 DoF (e.g., in left, right, top and down movement) [14], or 3 or more DoF (input combination).…”