Electronic device and method for controlling functions of electronic device as well as program product for implementing method

摘要

Electronic device, comprising a first camera on a first side of the electronic device, the first camera arranged to form first sequential image frames; a second camera on a second side of the electronic device, the second camera arranged to form second sequential image frames; memory including program code; a processor; the memory and the program code being configured to, with the processor, cause the electronic device to: segment each of the first and the second sequential image frames into segments; determine at least one fixed point from the image frame segments; define at least one movement vector, for the determined at least one fixed point, based at least in part on a comparison of at least some of the sequential image frames; determine a change relative to the at least one selected fixed point based on the movement vector; and control a function of the electronic device based on the determined change.