Patent ID: 8379059
Filing Date: 2013-02-19
Classification: G06F,G06K

Abstract:
1. A portable electronic device comprising a display screen, the portable electronic device comprising: a gravity sensor operable to monitor movement of the portable electronic device according to change in direction of acceleration relative to the portable electronic device, and sense acceleration data of the portable electronic device; a video camera operable to capture a facial image of a user when the user views the display screen; a gravity analysis module operable to analyze the acceleration data to obtain an acceleration direction of the portable electronic device from the acceleration data, compare the acceleration direction of the portable electronic device with the display orientation of the display screen, determine whether the display orientation needs to be adjusted according to the comparison, and generate a first adjustment parameter for adjusting the display screen when the display orientation needs to be adjusted; an image analysis module operable to analyze the facial image to obtain a viewing orientation from the facial image by using an image segmentation method comprising steps of: obtaining a vertical center line and a horizontal line between eyes of a user in the facial image, obtaining an intersection point between the vertical center line and the horizontal line, and drawing a shape “T” from the intersection to a mouth of the user along the vertical center line, determine whether the display orientation of the display screen needs to be adjusted according to the viewing orientation, and generate a second adjustment parameter for adjusting the display screen based on the shape “T” when the display orientation needs to be adjusted; and a display orientation adjusting module operable to adjust the display orientation of the display screen to the viewing orientation of the user according to the first adjustment parameter or the second adjustment parameter.