Patent ID: 8830302

Claim:
An apparatus configured to recognize a gesture, comprising: a light source configured to irradiate light; an image sensor configured to: receive a portion of the light that is reflected from a user, convert the received light into a depth image of the user, and output the depth image; an image processor configured to recognize the gesture of the user based on the depth image; a controller configured to control the light source, the image sensor and the image processor, wherein the controller is further configured to: decide a gesture recognition mode based on at least one of a range of the recognized gesture and accuracy of the recognized gesture, wherein at least one of an optical wavelength of the light source, an optical power level of the light source and a resolution of the image sensor is controlled to change at least one of the range of the recognized gesture and the accuracy of the recognized gesture of the decided gestured recognition mode, wherein the gesture recognition mode includes a first mode for recognizing a whole-body gesture and a second mode for recognizing a gesture involving a part of the body, wherein a recognition range of the second mode is narrower than a recognition range of the first mode, wherein if the controller controls the frame rate in the first mode, the frame rate is set to a first frame rate, wherein if the controller controls the frame rate in the second mode, the frame rate is set to a second frame rate, and wherein the second frame rate is greater than the first frame rate.