Peripheral luminance or color remapping for power saving

Abstract

In an embodiment, an electronic device includes a display and an eye tracker. The display includes one or more foveated areas. In the embodiment, the eye tracker is configured to collect eye tracking data regarding a gaze of one or more eyes of a user on the display. The electronic device also includes processing circuitry operatively coupled to the display. In the embodiment, the processing circuitry is configured to receive an indication of a motion associated with the gaze from the eye tracker. The processing circuitry is also configured to determine a previous location associated with the gaze during a previous frame and a target position associated with the gaze during a target frame. In the embodiment, the processing circuitry is configured to expand one or more foveated areas of the display adjacent a previous position of the gaze of the user.

What is claimed is: 
     
         1 . An electronic device comprising:
 a display; and   processing circuitry configured to:
 prepare first image data having a default foveated region before receiving an indication of a gaze of a user from an eye tracker; and 
 send the first image data to the display to cause presentation of image content having the default foveated region. 
   
     
     
         2 . The electronic device of  claim 1 , wherein the processing circuitry is configured to adjust the default foveated region based on the indication of the gaze from the eye tracker. 
     
     
         3 . The electronic device of  claim 1 , wherein the default foveated region corresponds to a portion of the image content that moves. 
     
     
         4 . The electronic device of  claim 1 , wherein the processing circuitry is configured to
 determine a rate based on a speed of the gaze of the user, a type of the image content being displayed, a size of the display, or a size of the default foveated region, or any combination thereof; and   prepare second image data configured to adjust, at the rate, the default foveated region of the display based on the gaze of the user.   
     
     
         5 . The electronic device of  claim 4 , wherein the processing circuitry is configured to
 determine a target position associated with the gaze during a target frame; and   expand the default foveated region of the display based on the target position.   
     
     
         6 . The electronic device of  claim 4 , wherein the processing circuitry is configured to adjust the default foveated region based on expanding, at the rate, the default foveated region in a direction of the gaze of the user. 
     
     
         7 . The electronic device of  claim 1 , wherein the default foveated region corresponds to an area of expected interest of the image content corresponding to the first image data. 
     
     
         8 . The electronic device of  claim 1 , wherein the default foveated region comprises a first foveated region and a second foveated region, wherein the first foveated region is positioned within the second foveated region, and wherein a resolution of the first foveated region tapers from a higher resolution at an edge of the first foveated region to a lower resolution at an edge of the second foveated region. 
     
     
         9 . The electronic device of  claim 8 , wherein the second foveated region corresponds to image data having had luminance and resolution adjusted. 
     
     
         10 . A non-transitory, tangible, computer-readable medium storing instructions that, when executed by processing circuitry, cause the processing circuitry to:
 generate first image data having a default foveated region to be presented on a display;   transmit the first image data to the display to cause presentation of image content that includes the default foveated region;   receive an indication of a gaze of a user from an eye tracker based on the presentation of the image content; and   generate second image data having the default foveated region adjusted based on the indication of the gaze of the user from the eye tracker.   
     
     
         11 . The non-transitory, tangible, computer-readable medium of  claim 10 , wherein the instructions cause the processing circuitry to determine the default foveated region based on determining an area of expected visual interest of the image content. 
     
     
         12 . The non-transitory, tangible, computer-readable medium of  claim 10 , wherein the instructions cause the processing circuitry to:
 determine a rate based on a speed of the gaze of the user, a type of the image content being displayed, a size of the display, or a size of the default foveated region, or any combination thereof; and   generate the second image data configured to adjust, at the rate, the default foveated region of the display.   
     
     
         13 . The non-transitory, tangible, computer-readable medium of  claim 12 , wherein the instructions cause the processing circuitry to determine the rate based on a movement of the gaze of the user from the default foveated region to a second location. 
     
     
         14 . The non-transitory, tangible, computer-readable medium of  claim 13 , wherein the instructions cause the processing circuitry to adjust, at the rate, the default foveated region of the display in a direction of the movement of the gaze of the user. 
     
     
         15 . A method comprising:
 preparing first image data having a default foveated region before receiving an indication of a gaze of a user from an eye tracker; and   sending the first image data to a display to cause presentation of image content having the default foveated region.   
     
     
         16 . The method of  claim 15 , comprising:
 determining a rate based on a speed of the gaze of the user, the default foveated region, a type of content being displayed, a size of the display, or any combination thereof; and   preparing second image data that adjusts, at the rate, the default foveated region of the display.   
     
     
         17 . The method of  claim 16 , comprising receiving an indication of movement in the gaze of the user from the eye tracker, wherein determining the rate is based on the movement. 
     
     
         18 . The method of  claim 15 , wherein the default foveated region corresponds to an area of expected interest of the image content. 
     
     
         19 . The method of  claim 15 , comprising:
 receiving the indication of the gaze of the user from the eye tracker based on the presentation of the image content; and   preparing second image data having the default foveated region adjusted based on the indication of the gaze of the user from the eye tracker.   
     
     
         20 . The method of  claim 19 , wherein preparing the second image data comprises preparing the second image data having the default foveated region adjusted based on an indication of a direction and speed of movement of the gaze of the user from the eye tracker.