Patent ID: 8228394

Claim:
An image capture device, comprising: an image detection unit being configured for capturing images of an object; a display unit being configured for displaying the captured images; and a control system comprising a feature extraction unit being configured for extracting the features of an object being imaged; a processing unit; and a storage unit for storing one or more commands executed by the processing unit, the one or more commands comprising: acquire the captured image; extract features of the object in the captured image and recognize an orientation of the object in the captured image; measure an included angle between the orientation of the object and a physical direction of the display unit; and leave a display direction of the display unit unchanged if the included angle is in range from −45° to 45°, rotate the display direction of the display unit 90° counterclockwise if the included angle is in range from −135° to −45°, rotate the display direction of the display unit 180° counterclockwise or clockwise if the included angle is in range from −135° to 135°, and rotate the display direction of the display unit 90° clockwise if the included angle is in range from 45° to 135°.