INPUT METHOD FOR PORTABLE DEVICE HAVING INTERNAL AND EXTERNAL CAMERAS AND DEVICE THEREFOR

摘要

PURPOSE: An input method for a portable device having internal and external cameras and a device therefor are provided to simply input a command using an image signal inputted from the portable device without installing an additional hardware device. CONSTITUTION: Information about commands according to valid input signals is stored in a storing device of a portable device(S110). A prediction model associated with a movement direction and speed of the portable device is set up(S120). The prediction model is certified(S130). An image signal is received from a camera(S140). The movement direction and speed of the portable device determined on the basis of the certified prediction model is set up as threshold, and an input signal is extracted from the received image signal(S150). The extracted input signal is filtered, and a valid input signal is outputted(S160). The outputted valid input signal corresponds to a certain command(S170).