A user can use a finger, or other such object, to provide input to a computing device. The finger does not have to contact the device, but can be positioned and/or oriented in such a way that the device can determine an input that the user is attempting to provide, such as an element or icon that the user is intended to select. One or more cameras can capture image information, which can be analyzed to attempt to determine the location and/or orientation of the finger. If the finger is at least partially outside a field of view of the camera(s), the device can use a sensor (e.g., EMF) to attempt to determine a location of at least a portion of the finger, which can be used with the image information to determine the location and/or orientation of the finger. Other estimation processes can be used as well.