Underwater image projection controller with boundary setting and image correction modules and interface and method of using same

• US 9,134,599 B2
• Filed: 09/25/2012
• Issued: 09/15/2015
• Est. Priority Date: 08/01/2012
• Status: Active Grant

• Current Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Original Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Inventors: Doyle, Kevin, Johnson, Bruce, Reddy, Rakesh
• Primary Examiner(s): Dowling, William C
• Application Number:
  US13/626,867
• Publication Number:
  US 20140085613A1
• Time in Patent Office: 1,085 Days
• Field of Search: 353/28, 353/74, 353/79, 348/81, 359/443
• US Class Current: 1/1
• CPC Class Codes: G03B 21/14 Details
• CPC Class Codes: G03B 21/53 Means for automatic focusing, e.g. to compensate thermal effects
• CPC Class Codes: G03B 21/56 Projection screens
• CPC Class Codes: G03B 21/608 Fluid screens
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: H04N 5/74 Projection arrangements for image reproduction, e.g. using eidophor
• CPC Class Codes: H04N 9/3179 Video signal processing therefor
• CPC Class Codes: H04N 9/3182 Colour adjustment, e.g. white balance, shading or gamut white balance per se H04N9/73; control of amplitude of colour signals H04N9/68; colour control circuits for displays in general G09G5/02, G09G3/2003, G09G3/3607
• CPC Class Codes: H04N 9/3185 Geometric adjustment, e.g. keystone or convergence optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

An underwater projection system, a controller and method of controlling are herein described. The controller providing, at least in part, a boundary setting module or methodology and/or an image correction module or methodology through a user interface for the underwater projection system. A user interface is provided to enable user control and input and adjustment of the image controller from an observation point outside of the media of the underwater projection system, while the adjustments are made in-situ. An optional automated edge or edge and surface detection system is also contemplated to assist in boundary detection within the water feature for the underwater image projection system.

Claims

1. A computer enabled device controlling image projection calibration of an underwater projection system, comprising:

a system controller communicating with said underwater projection system;

a water feature in which said underwater projection system is located under water and projects an image therefrom under the water, wherein the system controller has an at least one boundary mapping module and an at least one image correction module where the image is provided to the controller and projected through said underwater projection system after the system controller executes the at least one boundary mapping module to establish a boundary for the display of the image within the water feature and the system controller executes the at least one image correction module to establish image correction data for correcting the image displayed by said underwater projection system and controls projection of the image based on the correction data within the boundary for display of the image within the water feature by the underwater projection system.

2. The computer enabled device of claim 1, further comprising a user interface communicating with the system controller, wherein data representing the mapping of the at least one boundary mapping module is input by a user through the user interface.

3. The computer enabled device of claim 1, further comprising a user interface communicating with the system controller, wherein the correction data of the image is established through observations from a user and the observations are input through the user interface.

4. The computer enabled device of claim 2, wherein the user interface is a graphical user interface.

5. The computer enabled device of claim 4, wherein the graphical user interface includes a touch screen.

6. The computer enabled device of claim 5, wherein the user input is drawn onto the touch screen.

7. The computer enabled device of claim 3, wherein the user interface is a graphical user interface.

8. The computer enabled device of claim 7, wherein the graphical user interface includes a touch screen.

9. The computer enabled device of claim 8, wherein the user input is drawn onto the touch screen.

10. The computer enabled device of claim 2, wherein the data for the mapping of the at least one boundary mapping module input by a user is provided through placement of projected boundary image within the water feature through the user interface in communication with the system controller controlling projection of the boundary image in the underwater projection system to establish a projection boundary line within an underwater surface within the water feature.

11. The computer enabled device of claim 10, wherein the placement of projected boundary patterns with the water feature through the user interface includes placement around an obstruction within the water feature.

12. The computer enabled device of claim 3, wherein the data for the correction data of the image is established through observations from the user of a test image of known shape on the user interface and correction of the same test image projected through the underwater image projection system to establish the correction data.

13. The computer enabled device of claim 12, wherein the test image is projected sequentially or simultaneously at multiple points throughout the water feature.

14. A method of operating an underwater image projection system, comprising:

executing a boundary mapping module for the underwater image projection system to establish a projection area boundary line or edge;

executing an image correction module for the underwater image projection system to establish a correction map or calibration table for the area within the projection area boundary line or edge;

retrieving image data for an image as input;

adjusting the image data and manipulating the image based on the correction map or calibration table through a dynamic content manipulation system; and

projecting the image underwater in the water feature through the underwater projection system.

15. The method of claim 14, wherein the execution of the boundary system module projects through the underwater image projection system an at least one boundary image.

16. The method of claim 15, wherein the at least one boundary image is displayed on a user interface and a user positions the boundary image at a point of projection.

17. The method of claim 16, wherein the at least one boundary image is further manipulated to change its shape to correspond to a contours of the water feature at the point of projection within the water feature.

18. The method of claim 17, wherein the placement of the at least one boundary image further comprises the placement of multiple boundary images sequentially.

19. The method of claim 17, wherein the placement of the at least one boundary image further comprises the placement of multiple boundary images simultaneously.

20. The method of claim 17, wherein the placement of the at least one boundary image further comprises the placement of multiple boundary images around an obstruction.

21. The method of claim 14, further comprising applying additional corrective variables for the water feature analyzed as input by a user or sensed through sensors in communication with the underwater projection system.

22. The method of claim 21, wherein the additional corrective variables include at least one of a variable relating to placement, timing, display of the at least one boundary image or at least one variable relating to data collected, stored, programmed or utilized for calculations relating to the water feature.

23. The method of claim 14, wherein the execution of the image correction module projects a test image of a known shape into the water feature to produce an uncorrected projected image.

24. The method of claim 23, wherein the uncorrected projected image is analyzed and a correction determined by an observation made from outside the water feature.

25. The method of claim 24, wherein the correction is applied to the test image of a known shape and the underwater projector projects the test image of a known shape with the correction applied to produce an intermediary projected image.

26. The method of claim 25, wherein the intermediary projected image is analyzed and the corrections are repeated until the projected intermediary image is substantially similar to the known image as projected.

27. The method of claim 26, wherein the corrections are observed by a user and a user interface prompts input of the observed uncorrected and intermediary images by the user.

28. The method of claim 27, wherein the user interface is a graphical user interface with a touch screen and the user draws the observed shape and corrections are calculated from the variance of the drawn shape by a controller.

38. The method of claim 14, wherein the underwater projection system includes an at least two underwater image projection devices and coupling the at least two underwater image projection devices to share data regarding the stored projection area boundary line or edge and correction map or calibration table for each of the at least two underwater projection devices.

39. The method of claim 14, wherein the method is executed by a controller in a computer enabled device.

29. A method of establishing a projection area boundary in a water feature defining a projection area for an underwater image projection system, comprising:

projecting an at least one boundary image in the water feature;

adjusting a position of the at least one boundary image;

adjusting or selecting the shape of the at least one boundary image to comport with a surface within the water feature at the position; and

drawing and storing a projection area boundary based on the at least one boundary image placement and shape.

30. The method of claim 29, further comprising adjusting the position of the at least one boundary image using a user interface.

31. The method of claim 30, wherein the user interface is a touch screen enabled device.

32. The method of claim 31, wherein the boundary image is configured through a user changing the shape of the boundary image with the touch screen user interface.

33. The method of claim 32, wherein the boundary image shape is adjusted through selection of shapes in a menu or palette of shapes.

40. The method of claim 29, wherein the method is executed by a controller in a computer enabled device.

34. A method of correcting an image in a water feature projected by an underwater image projection system from an observation point outside of the water feature, comprising:

observing an uncorrected projected image of a known or expected shape at a specified target area of said water feature alone or across a defined projection area as set by a defined boundary

inputting observations or sensed variables related to the variance of the uncorrected projected image from the known shape at the specified target area of said water feature alone or across the defined projection area as set by a defined boundary;

projecting the uncorrected projected image with an at least one correction data point to produce an intermediary projected image and observing and inputting further corrections until the intermediary projected image is the substantially similar to the known or expected shape; and

storing the corrections applied to the image at the specified target area of said water feature alone or across the defined projection area as set by a defined boundary.

35. The method of claim 34, further comprising input of observations using a user interface.

36. The method of claim 35, wherein the user interface is a touch screen enabled device.

37. The method of claim 34, wherein the observing of an uncorrected projected image and the intermediary projected image is done by a user from a vantage point outside of the water feature.

41. The method of claim 34, wherein the method is executed by a controller in a computer enabled device.