Patent ID: 9473705
Filing Date: 2016-10-18
CPC Classification: H04N

Claim Text:
1. A method for determining a field of view of a camera device, the method comprising: obtaining position information of anchor points using at least one processor of the camera device; controlling the camera device to capture images of each of the anchor points, and obtaining a vertical angle of each of the anchor points and a horizontal angle of each of the anchor points; obtaining a distance between the camera device and each of the anchor points using the at least one processor; determining one or more speakers corresponding to each of the anchor points, and determining a virtual speaker for an anchor point when the anchor point does not correspond to a speaker; calculating a rotation angle of each of the speakers according to a trigonometric function when the camera device is oriented to point at each of the speakers, wherein the trigonometric function is obtained according to a vertical angle of an anchor point corresponding to the located speaker, a horizontal angle of the anchor point corresponding to the located speaker, a distance between the camera device and the anchor point corresponding to the located speaker, and an anthropometric value of the located speaker, wherein the anthropometric value is a vertical distance between the located speaker and a desktop as delineated by the anchor points; and obtaining a maximum left rotation angle and a maximum right rotation angle from rotation angles of the speakers, and determining the field of view of the camera device according to the maximum left rotation angle and the maximum right rotation angle.