Modifying rendered image data based on ambient light from a physical environment

Patent metadata

Field	Value
Publication number	US-12057089-B2
Application number	US-202318101779-A
Country	US
Kind code	B2
Filing date	Jan 26, 2023
Priority date	Feb 3, 2020
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A method includes obtaining rendered image data that includes a representation of an object for display using a see-through display. The see-through display permits ambient light from a physical environment through the see-through display. The method includes sensing a plurality of light superposition characteristic values associated with the ambient light that quantifies the ambient light. The method includes determining a plurality of display correction values associated with the electronic device based on the plurality of light superposition characteristic values and predetermined display characteristics of the representation of the object. The method includes generating, from the rendered image data, display data for the see-through display in accordance with the plurality of display correction values in order to satisfy the predetermined display characteristics of the representation of the object within a performance threshold.

First claim

What is claimed is:

1. A method comprising:
at an electronic device including one or more processors, a non-transitory memory, and a see-through display:
detecting ambient light from a physical environment arriving at the see-through display;
rendering image data including a representation of an object having predetermined display characteristics;
determining at least one display correction value that, within a performance threshold, compensates for interference between the detected ambient light and the predetermined display characteristics of the representation of the object; and
modifying at least a portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display.

2. The method of claim 1 , wherein:
determining the at least one display correction value includes determining a tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes changing a tint level of at least the portion of rendered image data in accordance with the tint value for display on the see-through display.

3. The method of claim 2 , wherein the tint value includes one or more of a luminance value associated with the physical environment and a contrast level between the predetermined display characteristics of the representation of the object and at least the portion of the rendered image.

4. The method of claim 1 , wherein:
determining the at least one display correction value includes determining a global tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes tinting the rendered image data for display on the see-through display according to the global tint value, including tinting the representation of the object with the global tint value.

5. The method of claim 1 , wherein:
determining the at least one display correction value includes determining a local tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes tinting according to the local tint value a portion of the rendered image data corresponding to a location of the representation of the object on the see-through display.

6. The method of claim 1 , wherein modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes applying multiple tinting layers to at least the portion of the rendered image data.

7. The method of claim 1 , wherein the at least one display correction value includes grid data.

8. The method of claim 7 , further comprising determining interpolated grid values by interpolating the grid data, wherein modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes adjusting the representation of the object according to the interpolated grid values.

9. The method of claim 1 , wherein detecting the ambient light includes determining scene content information associated with the physical environment.

10. The method of claim 1 , wherein the at least one display correction value includes a combination of global luminance values associated with the physical environment and chromaticity values associated with the physical environment.

11. The method of claim 1 , wherein the at least one display correction value includes a combination of local luminance values associated with the physical environment and chromaticity values associated with the physical environment.

12. The method of claim 1 , wherein the at least one display correction value includes a combination of spatial luminance values associated with the physical environment and chromaticity values associated with the physical environment.

13. The method of claim 1 , wherein modifying at least the portion of the rendered image data includes modifying at least the portion of the rendered image data to generate display data as a function of scene content information associated with the rendered image data.

14. A system comprising:
a see-through display, wherein the see-through display permits ambient light from a physical environment through the see-through display;
a sensor subsystem to detect ambient light from the physical environment arriving at the see-through display;
a display pipeline to render image data including a representation of an object having predetermined display characteristics; and
a correction values generator to determine at least one display correction value that, within a performance threshold, compensates for interference between the detected ambient light and the predetermined display characteristics of the representation of the object;
wherein the display pipeline is further operable to modify at least a portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display.

15. The system of claim 14 , wherein:
determining the at least one display correction value includes determining a tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes changing a tint level of at least the portion of rendered image data in accordance with the tint value for display on the see-through display.

16. The system of claim 15 , wherein the tint value includes one or more of a luminance value associated with the physical environment and a contrast level between the predetermined display characteristics of the representation of the object and at least the portion of the rendered image.

17. The system of claim 14 , wherein:
determining the at least one display correction value includes determining a global tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes tinting the rendered image data for display on the see-through display according to the global tint value, including tinting the representation of the object with the global tint value.

18. The system of claim 14 , wherein:
determining the at least one display correction value includes determining a local tint value; and
modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes tinting according to the local tint value a portion of the rendered image data corresponding to a location of the representation of the object on the see-through display.

19. The system of claim 14 , wherein modifying at least the portion of the rendered image data in accordance with the at least one display correction value for display on the see-through display includes applying multiple tinting layers to at least the portion of the rendered image data.

20. The system of claim 14 , wherein the correction values generator includes a grid data generator to generate grid data, wherein the at least one display correction value includes the grid data.

21. The system of claim 20 , wherein the display pipeline includes a grid data interpolator to interpolate the grid data, and wherein

Assignees

• Apple Inc

Inventors

• Hazra Siddharth Shankar
• Habel Ralf
• Grundhoefer Anselm
• Movshovich Aleksandr M
• Khan Moinul
• Hussein Marwan

Classifications

• G02B27/017

  Head mounted · CPC title

• G02B27/0172

  characterised by optical features · CPC title

• G09G2360/14

  Detecting light within display terminals, e.g. using a single or a plurality of photosensors · CPC title

• G06T19/006

  Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00) · CPC title

• G02B2027/0118

  comprising devices for improving the contrast of the display / brillance control visibility · CPC title