System and method of modifying lighting in a display system

• US 9,489,102 B2
• Filed: 10/28/2010
• Issued: 11/08/2016
• Est. Priority Date: 10/22/2010
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Samadani, Ramin, Robinson, Ian N
• Primary Examiner(s): Awad, Amr
• Assistant Examiner(s): FLORES, ROBERTO W
• Application Number:
  US12/914,579
• Publication Number:
  US 20120098806A1
• Time in Patent Office: 2,203 Days
• Field of Search: 345 7- 9, 345204-215, 345690-699, 345/176, 345/156, 345633-634, 382/291, 382/103, 715700-866
• US Class Current: 1/1
• CPC Class Codes: G06F 3/048 Interaction techniques based on graphical user interfaces [GUI]
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2360/144 the light being ambient light

Abstract

The present invention describes a display system. The display system includes a display, the display including a display screen capable of operating in a transparent mode; a lighting characteristic assessment component for determining the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen; and an adaptive lighting control component for controlling of an at least one lighting source and the lighting characteristics of the content on the display screen, wherein based on a comparison of the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen, modifying at least one of the lighting characteristics of the content on the display screen or the lighting characteristics of the at least one lighting source.

Claims

1. A display system comprised of:

a display including a display screen for operating in at least a transparent mode used to augment with graphical information content on the display screen an object manipulated behind the display screen by a user;

a lighting characteristic assessment component for determining the lighting characteristics, including lighting direction, of the content on the display screen and the lighting characteristics, including lighting direction, behind the display screen;

a viewpoint assessment sensor on the display positioned to capture a facial detail of the user and to determine a viewpoint of the user;

at least one object tracking sensor to sense the position of the object behind the display screen and the position of the content is dependent on the viewpoint of the user and the position of the object; and

an adaptive lighting control component to control an at least one lighting source to cast a pattern of a shadow that corresponds to the object to allow the lighting characteristics of the content on the display screen to match the lighting characteristics of the object behind the display screen to create a realistic natural looking scene that contains both virtual and real elements, wherein the at least one lighting source and the facial detail of the user are located on opposite sides of the display screen, and the adaptive lighting control component to modify the lighting characteristics of the at least one lighting source in response to a comparison of the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen.

2. The display system recited in claim 1 wherein the at least one lighting source is modified to match the lighting characteristics behind the display screen with the lighting characteristics of the contents on the display screen at a defined region surrounding the object behind the screen.

3. The display system recited in claim 1 wherein the lighting characteristics behind the display screen are known and a description of the known lighting characteristics is input to the lighting characteristic assessment component.

4. The display system recited in claim 3 wherein the lighting characteristics of the content on the display screen are modified to match the known lighting characteristics behind the display screen.

5. The display system recited in claim 1 wherein the viewpoint assessment component to determine the viewpoint of the user positioned in front the display screen;

the object tracking component to track user manipulation of the object positioned behind the display screen; and

further including a display generation component, wherein based on data from the viewpoint assessment component and the object tracking component, the display generation component creates the graphical information content for display on the display screen registered to the object behind the display screen and dependent upon the viewpoint of the user.

6. The display system recited in claim 1 further including at least one lighting characteristic sensor for measuring the lighting characteristics behind the display screen.

7. The display system recited in claim 6 wherein the at least one lighting characteristic sensor is an image capture device.

8. The display system recited in claim 1 wherein the position of the content is determined by a line of sight between a location of the user viewpoint and a location of the object behind the display screen.

9. The display system recited in claim 1 wherein the at least one lighting source is a picoprojector.

10. A tangible non-transitory computer readable storage medium having computer readable program instructions stored thereon for causing a computer system to perform instructions, the instructions comprising the steps of:

augmenting with graphical information content on a display screen an object manipulated by a user behind the display screen wherein the object is on an opposite side of the display screen from which the user is to face;

determining a viewpoint of the user using a viewpoint assessment component on the display positioned to capture a facial detail of the user;

sensing the object behind the display screen with at least one object tracking component and positioning the content dependent on the viewpoint of the user;

determining the lighting characteristics, including a first lighting direction, of the content displayed on a display screen;

determining the lighting characteristics, including a second lighting direction, behind the display screen, wherein an at least one lighting source of the display system and the facial detail of the user are located on opposite sides of the display screen;

comparing the lighting characteristics of the content displayed on the display screen to the lighting characteristics of a region behind the display screen; and

modifying the at least one lighting source to cast a pattern of a shadow that corresponds to the object or the content on the display screen to match the lighting of the object behind the display screen with the lighting of the content that is on the display screen to create a realistic natural looking scene that contains both virtual and real elements, wherein the modifying is performed in response to the result of the comparison of the lighting characteristics of the content on the display screen and the lighting characteristics of the region behind the display screen.

11. The tangible non-transitory computer readable storage medium recited in claim 10, wherein each of the lighting characteristics compared include at least the respective lighting direction and respective lighting colors.

12. The tangible non-transitory computer readable storage medium recited in claim 11, wherein each of the lighting characteristics compared further includes the respective lighting intensities.

13. The tangible non-transitory computer readable storage medium recited in claim 10 further including the step of modifying the at least one lighting source to match the lighting characteristics behind the display screen with the lighting characteristics of the contents on the display screen at a defined region surrounding the object behind the screen.

14. The tangible non-transitory computer readable storage medium recited in claim 10 further including the step of inputting a description of the known lighting characteristics to the lighting control component when the lighting characteristics behind the display screen are known.

15. The tangible non-transitory computer readable storage medium recited in claim 10 further including the steps of:

tracking user manipulation of the object positioned behind the display screen; and

creating the graphical information content with a display generation component for display on the display screen registered to the object behind the display screen and dependent upon the viewpoint of the user.

16. The tangible non-transitory computer readable storage medium recited in claim 15 wherein the step of generating graphical information content is based on data from the viewpoint assessment component and the object tracking component.

17. A method of modifying lighting in a display system comprising the steps of:

augmenting with graphical information content on a display screen an object manipulated by a user behind the display screen wherein the object is on an opposite side of the display screen from which the user is to face;

determining a viewpoint of the user using a viewpoint assessment component on the display positioned to capture a facial detail of the user;

sensing the object behind the display screen with at least one object tracking component and positioning the content dependent on the viewpoint of the user;

determining the lighting characteristics, including a first lighting direction, of the content displayed on a display screen;

determining the lighting characteristics, including a second lighting direction, behind the display screen, wherein an at least one lighting source of the display system and the facial detail of the user are located on opposite sides of the display screen;

comparing the lighting characteristics of the content displayed on the display screen to the lighting characteristics of a region behind the display screen; and

modifying the at least one of lighting source to cast a pattern of a shadow that corresponds to the object or the content on the display screen to match the lighting of the object behind the display screen with the lighting of the content that is on the display screen to create a realistic natural looking scene that contains both virtual and real elements, wherein the modifying is performed in response to the result of the comparison of the lighting characteristics of the content on the display screen and the lighting characteristics of the region behind the display screen.

18. The method recited in claim 17, wherein each of the lighting characteristics compared include at least the respective lighting directions and respective lighting colors.

19. The method recited in claim 17 further including the step of modifying the at least one lighting source to match the lighting characteristics behind the display screen with the lighting characteristics of the contents on the display screen at a defined region surrounding the object behind the screen.

20. The method recited in claim 17 further including the step of inputting a description of the known lighting characteristics to the lighting control component when the lighting characteristics behind the display screen are known.