Meta Platforms Technologies, LLC

Facebook Technologies, LLC

Tianxin Ning

Haomiao Jiang

Behnam Bastani

Linghui Rao

Weihua Gao

Yongmin Park

In particular embodiments, a computing system may receive receiving a first image frame of a sequence of image frames to be shown on a display having a plurality of backlight zones. The computing system may compute backlight unit statistics of the first image frame. The backlight unit statistics may represent grayscale levels for the plurality of backlight zones. The computing system may compute a global dimming gain for adjusting color values and backlight unit intensity of a second image frame of the sequence of image frames based on the backlight unit statistics of the first image frame. The computing system may adjust, using the global dimming gain, the color values and the backlight unit intensity of the second image frame.

Systems and methods for performing global dimming in artificial reality systems

A method for providing imagery to a user on a display includes receiving eye tracking data. The method also includes determining a current gaze location and a relative distance between the current gaze location and an edge of the display using the eye tracking data. The method also includes defining a first tile centered at the current gaze location and multiple tiles that surround the first tile using the current gaze location and the relative distance between the current gaze location and the edge of the display. The method includes providing a foveated rendered image using the first tile and the multiple tiles.

Foveated rendering using eye motion

A method for providing imagery to a user on a display includes receiving head tracking data and using the head tracking data to determine a change in an orientation of a user's head. The method also includes blending pixels of a previous frame with corresponding pixels of a current frame. The corresponding pixels of the current frame are identified using the change in the orientation of the user's head. The method also includes providing foveated imagery to the user on the display using the blended pixels and multiple tiles.

Systems and methods for temporal anti-aliasing

A method for providing imagery to a user on a display includes receiving eye tracking data. The method also includes determining a gaze location on the display and at least one of a confidence factor of the gaze location, or a speed of the change of the gaze location using the eye tracking data. The method also includes establishing multiple tiles using the gaze location and at least one of the confidence factor or the speed of the change of the gaze location. The method also includes providing a foveated rendered image using the multiple tiles.

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Mountain View, CA, United States of America

Tianxin Ning