Graphical image processing with enhanced editing facility

• US 20020154127A1
• Filed: 02/20/2002
• Published: 10/24/2002
• Est. Priority Date: 04/20/2001
• Status: Active Grant

• Current Assignee: Autodesk, Inc.
• Original Assignee: Autodesk, Inc.
• Inventors: Vienneau, Christopher, Parghi, Amit
• Granted Patent: US 6,873,328 B2
• Time in Patent Office: Days
• US Class Current: 345/473
• CPC Class Codes: G06T 13/00 Animation
• CPC Class Codes: G06T 2200/24 involving graphical user interfaces [GUIs]

Abstract

A method for modifying characteristics of an animation. An animation is created for a live broadcast and comprises graphic data including first parameters and references to editable parameters. The editable parameters have their characteristics, including a value and a description for each editable parameter, stored as metadata. The graphic data is instantiated by a metafile containing the metadata to determine the overall characteristics of an animation used during the live broadcast. The metadata may be independently modified on remote processing systems without having access to said graphic data. Finally, the animation is rendered during a broadcast, during which both the first and editable parameters are used to determine characteristics of the rendered animation.

Claims

1. An animation editing system for generating graphic data and metadata for an animation, including processing means, display means and data storage means, in which graphic data and metadata are generated in response to user interactions with said editing system, under control of processing instructions for said processing means to facilitate user input of first characteristics of an animation via a graphical user interface displayed on said display means;

wherein

said graphic data includes first parameters defining said first characteristics, and references to editable parameters in said metadata;

said metadata includes said editable parameters which define second characteristics of said animation; and

for each said editable parameter, said metadata includes a value field, and an identifying means for identifying the corresponding parameter to a user, thereby defining an interface to facilitate subsequent editing of said second characteristics of said animation.

2. An animation editing system according to claim 1, wherein said identifying means is a description of the corresponding parameter.

3. An animation editing system according to claim 1, wherein said metadata includes a defined range of permissible values for each parameter.

4. An animation editing system according to claim 1, wherein said metadata includes a default value for each said editable parameter.

5. An animation editing system according to claim 1, wherein processing instructions are provided to enable said processing means to combine said graphic data with rendering instructions to create an executable graphic file.

6. An animation editing system according to claim 1, wherein said metadata is encoded in XML (Extensible Markup Language).

7. An animation editing system according to claim 1, wherein said system is configured to transmit said metadata over a computer network separately from said graphic data.

8. In an animation editing system generating graphic data and metadata for an animation, a method in which graphic data and metadata are generated in response to a user'"'"'s interactions with a graphical user interface comprising the steps of:

(a) processing instructions to facilitate user input of graphic data including first parameters defining first characteristics of an animation;

(b) generating metadata including editable parameters defining second characteristics of said animation;

(c) generating references within said graphic data to said editable parameters in said metadata; and

(d) generating within said metadata a value field for each said editable parameter and an identifying means for identifying each parameter to another user, thereby defining an interface to facilitate subsequent editing of said second characteristics of said animation.

9. A method of generating graphic data and metadata for an animation according to claim 8, wherein said identifying means is a description of the corresponding parameter.

10. A method of generating graphic data and metadata for an animation according to claim 8, wherein an allowable range of values for each parameter is generated within said metadata.

11. A method of generating graphic data and metadata for an animation according to claim 8, comprising the further step of combining said graphic data with rendering instructions to create an executable graphic file.

12. A method of generating graphic data and metadata for an animation according to claim 8, wherein said metadata is encoded in XML (Extensible Markup Language).

13. A method of generating graphic data and metadata for an animation according to claim 8, comprising the further step of transmitting said metadata over a computer network separately from said graphic data.

15. An animation rendering system for processing graphic data and metadata for an animation according to claim 14, wherein said processing means executes processing instructions to perform animation initialisation steps of:

(a) loading said graphic data; and

(b) parsing said metadata to instantiate a data structure for an animation; and

said processing means subsequently executes processing instructions for rendering said animation in response to animation characteristics defined by said graphic data in combination with said data structure.

16. An animation rendering system according to claim 15, wherein said step (a) for loading said graphic data comprises steps of:

(a1) load an executable graphic file;

(a2) identify executable instructions in said graphic file;

and said rendering is performed by said processing means operating according to the instructions identified at step (a2).

17. An animation rendering system according to claim 15, wherein said processing instructions enable said processing means to render a sequence of a plurality of animations.

18. An animation rendering system according to claim 15, wherein said processing means executes additional Instructions to combine said rendered animation with other moving image data.

19. An animation rendering system according to claim 15, further including interfacing means for receiving camera data from a television camera;

said camera data comprising image data and coordinating data;

wherein said processing means is configured to;

render said animation in combination with said image data; and

simultaneously update an animation view characteristic in response to said coordinating data such that the rendered view in said animation substantially matches the camera view.

14. An animation rendering system, including processing means, display means and data storage means containing graphic data and metadata, in which said graphic data and said metadata are processed by said processing means in accordance with processing instructions to render said graphical data as a sequence of image frames, by a process of combining said graphical data with said metadata, in which:

said graphical data defines an animation in which first characteristics of said animation are controlled by first parameters within said graphical data, and second characteristics of said animation are controlled by editable parameters within said metadata which are referenced by said graphic data; and

said metadata defines a specific value and an identifying means for each of a plurality of said editable parameters such that an interface for editable parameters may be constructed for user modification of animation characteristics.

20. A data structure on a machine-readable medium, containing instructions for processing means in an animation editing system, in which said instructions instruct said processing means to perform processing operations for generating graphic data and metadata for an animation, said editing system comprising said processing means, a display means and storage means, in which said graphic data and metadata are generated in response to user interactions with said editing system, under control of said processing instructions, to enable user input of characteristics of an animation via a graphical user interface displayed on said display means, said processing means being configured to perform steps of:

(a) defining first characteristics by storing values of first parameters in said graphic data;

(b) defining second characteristics by storing values of editable parameters in said metadata;

(c) defining access to second characteristics of said animation by storing references in said graphic data to said editable parameters; and

(d) for each said editable parameter, storing in said metadata;

(1) a value field; and

(2) an identifying means for identifying a corresponding editable parameter;

thereby defining an interface for second characteristics of said animation.

21. A data structure according to claim 20, wherein said metadata includes a default value for each said editable parameter.

22. A data structure according to claim 20, wherein said instructions instruct said processing means to store a finished animation as a metafile in conjunction with an executable graphic file, said executable graphic file being the result of combining said graphic data with processor instructions for animation rendering.

23. A data structure according to claim 20, including instructions to store metadata as XML (Extensible Markup Language).

25. A data structure on a machine-readable medium according to claim 24, in which said instructions instruct said processing means to perform animation initialisation steps of:

(a) loading said graphic data from said data storage medium; and

(b) parsing said metadata to instantiate a data structure for an animation;

and then to render said animation in response to animation characteristics defined by said graphic data and said metadata.

26. A data structure according to claim 25, wherein said step (a) for loading said graphic data comprises steps of:

(a1) load an executable graphic file;

(a2) identify executable instructions in said graphic file;

and said rendering is performed by said processing means operating according to the instructions identified at step (a2).

27. A data structure according to claim 24, wherein said instructions further enable said processing means to render a sequence of a plurality of animations.

28. A data structure according to claim 24, including instructions to combine said rendered animation with other moving image data.

29. A data structure according to claim 24, wherein said animation rendering system further includes interfacing means for receiving camera data from a television camera, said camera data comprising image data and coordinating data;

including instructions for said processing means to;

render said animation in combination with said image data; and

simultaneously update an animation view characteristic in response to said coordinating data such that the rendered view in said animation substantially matches the camera view.

24. A data structure on a machine-readable medium, containing instructions for processing means in an animation system, in which said instructions instruct said processing means to perform processing operations for processing graphic data and metadata for an animation, said graphical data and metadata are stored upon a data storage medium and these are processed by said processing means in accordance with the instructions, to render said graphical data as a sequence of image frames, by a process of combining said graphical data with said metadata, in which:

said graphical data defines an animation, in which characteristics of said animation are controlled by first parameters within said graphical data and editable parameters within said metadata; and

said metadata defines a specific value and an identifying means for each of a plurality of said editable parameters such that an interface for said editable parameters may be constructed for user modification of animation characteristics.

30. A computer-readable medium having computer-readable instructions executable by a computer such that, when executing said instructions, a computer will perform the steps of:

(a) processing instructions to facilitate user input of graphic data including first parameters defining first characteristics of an animation;

(b) generating metadata including editable parameters defining second characteristics of said animation;

(c) generating references within said graphic data to said editable parameters in said metadata; and

(d) generating within said method data a value field for each of said editable parameters and an identifying means for identifying each parameter to another user, thereby defining an interface to facilitate subsequent editing of said second characteristics of said animation.