Disclosed are a device for recognizing a facial expression and a method thereof. In accordance with an embodiment of the present invention, the device for recognizing a facial expression includes a storage unit for storing facial expression information; at least one light emitting part for emitting infrared rays (IR) to at least one object of a face of a user wearing the wearable headset device; at least one light receiving part for receiving infrared rays related to a correlation with the at least one object; an information collection unit for collecting intensity information from the received infrared rays; a transmission characteristic determination unit for determining transmission characteristic change in the received infrared rays based on the intensity information; a deformation of skin measurement unit for measuring deformation of skin for the at least one object based on the intensity information and the transmission characteristic change; and a facial expression recognition unit for recognizing a facial expression by comparing the deformation of skin with the facial expression information.
Device for recognizing facial expression and method thereof