Embodiments of the present invention are directed toward controlling electronic devices based on hand gestures detected by detecting the topography of a portion of a user's body. For example, pressure data indicative of a user's bone and tissue position corresponding to a certain movement, position, and/or pose of a user's hand may be detected. An electromyographic (EMG) sensor coupled to the user's skin can also be used to determine gestures made by the user. These sensors can be coupled to a camera that can be used to capture images, based on recognized gestures, of a device. The device can then be identified and controlled.