System and method for conforming an animated camera to an editorial cut

• US 8,773,441 B2
• Filed: 07/02/2010
• Issued: 07/08/2014
• Est. Priority Date: 07/10/2009
• Status: Active Grant

• Current Assignee: Pixar (The Walt Disney Company), Pixar Animation Studios Incorporated (The Walt Disney Company)
• Original Assignee: Pixar (The Walt Disney Company)
• Inventors: Anon, Josh
• Primary Examiner(s): Wu, Xiao
• Assistant Examiner(s): RABURN, GREG A
• Application Number:
  US12/830,254
• Publication Number:
  US 20110007080A1
• Time in Patent Office: 1,467 Days
• Field of Search: None
• US Class Current: 345/473
• CPC Class Codes: G06T 13/00 Animation

Abstract

A method for conforming an animated camera to an editorial cut within a software application executing on a computer system. The method includes providing a shot that includes three-dimensional animation captured by a virtual camera associated with a pre-defined camera style; receiving an editorial action that has been performed to the shot; and updating a camera move associated with the virtual camera based on the camera style and the editorial action.

Claims

1. A method for conforming an animated camera to an editorial cut within a software application executing on a computer system, comprising:

providing a first shot that includes three-dimensional animation captured by a virtual camera, wherein movement of the virtual camera is controlled according to a spline that includes one or more knots, wherein each knot represents a value of a variable associated with the virtual camera at a particular frame;

receiving an editorial shot that comprises a version of the first shot on which one or more editorial actions have been performed;

analyzing both the received editorial shot and the first shot to determine an estimation of the one or more editorial actions that were performed to the first shot in order to produce the editorial shot and that necessitate an update to the movement of the virtual camera, based on one or more differences between the editorial shot and the first shot; and

upon determining the estimation of the one or more editorial actions, automatically updating the movement of the virtual camera by adjusting the value of at least one of the variables based on the determined estimation of the one or more editorial actions.

2. The method of claim 1, wherein the estimation of the one or more editorial actions includes at least one of (i) omission of at least one frame, (ii) retention of at least one frame, (iii) a timing adjustment, (iv) a new first frame and (v) a new last frame.

3. The method of claim 2, wherein each of the one or more knots is associated with a respective handle for modifying the shape of the Bezier curve, and wherein each of the one or more knots has a respective flat tangent relative to the Bezier curve.

4. The method of claim 3, wherein the spline is associated with a first knot included before the movement of the camera is updated, and wherein the spline is associated with a second knot that is included after the movement of the camera is updated.

5. The method of claim 1, further comprising:

upon determining that the determined estimation of the one or more editorial actions comprises removing one or more frames from the first shot, determining a first retained range of frames, an omitted range of frames, and a second retained range of frames associated with the updated movement of the virtual camera.

6. The method of claim 5, further comprising:

determining that at least one of the one or more knots is located within the omitted range of frames and within a threshold amount of frames from a last frame of the first retained range of frames.

7. The method of claim 6, wherein updating the movement of the virtual camera further comprises preserving the at least one knot within the omitted range of frames.

8. The method of claim 6, wherein the threshold amount of frames comprises fewer than a number of frames included in one second of time.

9. The method of claim 5, wherein updating the movement of the virtual camera further comprises:

determining that a first one knot is located within the omitted range of frames and within a threshold amount of frames from a first frame of the second retained range of frames, wherein the threshold amount of frames comprises fewer than a number of frames included in one second of time.

10. The method of claim 9, wherein updating the movement of the virtual camera further comprises:

upon determining that the first knot is located within the omitted range of frames and within the threshold amount of frames from the first frame of the second retained range of frames;

preserving the first knot within the omitted range of frames; and

scaling one or more handles associated with the first knot in order to preserve a movement style of the virtual camera.

11. The method of claim 1, further comprising:

generating a machine-readable file specifying the determined estimation of the one or more editorial actions that have been performed to the first shot,

and wherein updating the movement of the virtual camera further comprises executing the generated machine-readable file to make timing adjustments to the movement of the virtual camera based on the determined estimation of the one or more editorial actions.

12. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause a computer system to conform an animated camera to an editorial cut, by performing an operation comprising:

providing a first shot that includes three-dimensional animation captured by a virtual camera, wherein movement of the virtual camera is controlled according to a spline that includes one or more knots, wherein each knot represents a value of a variable associated with the virtual camera at a particular frame;

receiving an editorial shot that comprises a version of the first shot on which one or more editorial actions have been performed;

analyzing both the received editorial shot and the first shot to determine an estimation of the one or more editorial actions that were performed to the first shot in order to produce the editorial shot and that necessitate an update to the movement of the virtual camera, based on one or more differences between the editorial shot and the first shot; and

upon determining the estimation of the one or more editorial actions, automatically updating the movement of the virtual camera, by adjusting the value of at least one of the variables based on the determined estimation of the one or more editorial actions.

13. The non-transitory computer-readable medium of claim 12, wherein the spline is a Bezier curve.

14. The non-transitory computer-readable medium of claim 13, wherein each of the one or more knots is associated with a respective handle for modifying the shape of the Bezier curve, and wherein each of the one or more knots has a respective flat tangent relative to the Bezier curve.

15. The non-transitory computer-readable medium of claim 14, wherein the spline is associated with a first knot included before the movement of the camera is updated, and wherein the spline is associated with a second knot that is included after the movement of the camera is updated.

16. The non-transitory computer-readable medium of claim 12, the operation further comprising:

upon determining that the determined estimation of the one or more editorial actions comprises removing one or more frames from the first shot, determining a first retained range of frames, an omitted range of frames, and a second retained range of frames associated with the updated movement of the virtual camera.

17. The non-transitory computer-readable medium of claim 16, further comprising:

determining that at least one of the one or more knots is located within the omitted range of frames and within a threshold amount of frames from a last frame of the first retained range of frames.

18. The non-transitory computer-readable medium of claim 17, wherein updating the movement of the virtual camera further comprises preserving the at least one knot within the omitted range of frames.

19. The non-transitory computer-readable medium of claim 17, wherein the threshold amount of frames comprises fewer than a number of frames included in one second of time.

20. The non-transitory computer-readable medium of claim 16, wherein updating the movement of the virtual camera further comprises:

determining that a first knot is located within the omitted range of frames and within a threshold amount of frames from a first frame of the second retained range of frames, wherein the threshold amount of frames comprises fewer than a number of frames included in one second of time.

21. The non-transitory computer-readable medium of claim 20, wherein updating the movement of the virtual camera further comprises:

upon determining that the first knot is located within the omitted range of frames and within the threshold amount of frames from the first frame of the second retained range of frames;

preserving the first knot within the omitted range of frames; and

scaling one or more handles associated with the first knot in order to preserve a movement style of the virtual camera.

22. The non-transitory computer-readable medium of claim 12, further comprising:

generating a machine-readable file specifying the determined estimation of the one or more editorial actions that have been performed to the first shot,

and wherein updating the movement of the virtual camera further comprises executing the generated machine-readable file to make timing adjustments to the movement of the virtual camera based on the determined estimation of the one or more editorial actions.

23. A system for conforming an animated camera to an editorial cut, the system comprising:

a processor configured to;

provide a first shot that includes three-dimensional animation captured by a virtual camera, wherein movement of the virtual camera is controlled according to a spline that includes one or more knots, wherein each knot represents a value of a variable associated with the virtual camera at a particular frame;

receive an editorial shot that comprises a version of the first shot on which one or more editorial actions have been performed;

analyze both the received editorial shot and the first shot to determine an estimation of the one or more editorial actions that were performed to the first shot in order to produce the editorial shot and that necessitate an update to the movement of the virtual camera, based on one or more differences between the editorial shot and the first shot; and

upon determining the estimation of the one or more editorial actions, automatically update the movement of the virtual camera, by adjusting the value of at least one of the variables based on the estimation of the determined one or more editorial actions.

24. The system of claim 23, further comprising a memory storing instructions that, when executed by the processor, configure the processor to:

provide the first shot that includes the three-dimensional animation;

receive the editorial shot;

determine the estimation of the one or more editorial actions; and

update the movement of the virtual camera.