Video display correction to provide on-axis view at an off-axis angle

摘要

Embodiments describe methods, apparatus and systems to provide video display correction to provide an on-axis view at an off-axis angle so that the display surface displays a rectangular video image. For instance, a device may receive a stream of video data to be displayed on a display surface of a display, the video data having a first rectangular aspect ratio to be viewed from an on-axis location with respect to the display surface. The device may also receive a user selection of an off-axis viewing angle with respect to the display surface. The device may then correct the first rectangular aspect ratio to a second, non-rectangular aspect ratio based on the off-axis viewing angle, so that from the off-axis angle, the display surface appears to display a rectangular video image. Other embodiments are also described and claimed.

主权项

1. A method comprising:
receiving a stream of video data to be displayed on a stationary display surface of a display, the video data having a first rectangular aspect ratio to be viewed from an on-axis location with respect to the display surface; receiving a user selection of an a 2 dimensional off-axis viewing angle with respect to the display surface; wherein the user selection is an automatic selection signal received from a wireless remote control; determining the off-axis viewing angle based on an angle the signal is received from; and changing the first rectangular aspect ratio to a second, non-rectangular 2 dimensions change in aspect ratio based on the 2 dimensional off-axis viewing angle with respect to the on-axis location, wherein receiving the user selection further comprises receiving a plurality of wireless control signals over time from the wireless remote, the control signals identifying a plurality of off-axis viewing angles with respect to the surface; wherein determining the off-axis viewing angle comprises determining a plurality of off-axis viewing angles over time based on a plurality of angles the plurality of wireless control signals are received from over time; and wherein changing the first rectangular aspect ratio comprises changing the first rectangular aspect ratio to a plurality of second, non-rectangular 2 dimensions changes in aspect ratio over time, based on the 2 dimensional off-axis viewing angles over time with respect to the on-axis location.