12-12-2013 дата публикации
Номер: US20130328773A1
Disclosed are a camera-based information input method and a terminal, for providing an input method that consumes few resources and does not block the terminal screen. The method comprises: a terminal identifying an area having specified color information from an image acquired by a camera; determining change information of the area; and determining, according to the change information, information input to the terminal. 1. A camera-based information input method , comprising:identifying, by a terminal, a region with specified color information in an image captured by a camera;determining change information in the region; anddetermining, from the change information, information input to the terminal.2. The method according to claim 1 , further comprising:before determining, from the change information, information input to the terminal, determining, by the terminal, that an amount of area change of the region over a length of time below a predetermined threshold of time is above a predetermined threshold of the amount of area change.3. The method according to claim 1 , further comprising: before determining the information input to the terminal from the change information claim 1 ,determining, by the terminal, its input mode as a non-handwriting input mode; anddetermining, from the change information, information input to the terminal further comprises:determining, by the terminal, whether an amount of location change of the region is above a predetermined threshold of sliding detection, from a comparison therebetween, upon determining from the change information that a trend of area change of the region is increasing and then decreasing and that both an amount of area change resulting from the increasing and the amount of area change resulting from the decreasing are above a predetermined threshold of the amount of area change, andif the amount of location change of the region is above the predetermined threshold of sliding detection, determining the information ...
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