Image animation with transitional images

• US 20090058863A1
• Filed: 09/04/2007
• Published: 03/05/2009
• Est. Priority Date: 09/04/2007
• Status: Abandoned Application

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Huang, Szu-Wen, Avkarogullari, Gokhan
• Application Number:
  US11/899,144
• Publication Number:
  US 20090058863A1
• Time in Patent Office: Days
• US Class Current: 345/473
• CPC Class Codes: G06T 13/80 2D [Two Dimensional] animation, e.g. using sprites

Abstract

A technique is provided for animating an image or a portion of an image. In accordance with this technique, intermediary or transitional images, referred to as offset images, are displayed as part of an animation step to lessen abrupt changes in pixel values. In one embodiment, the offset images are generated using a weighted average of proximate pixels. In such an embodiment, the weight factor may take into account the distance of the offset from the proximate pixels such that closer pixels are more heavily weighted. Based on the direction of movement for the animation, the offset images are ordered and displayed as part of the animation steps of an animation sequence.

Claims

1. A method for animating an image, comprising:

generating one or more offset images for an image undergoing animation; and

displaying the one or more offset images as part of a step of the animation.

2. The method of claim 1, comprising ordering the offset images prior to displaying the one or more offset images.

3. The method of claim 1, comprising determining a direction in which the image undergoes animation.

4. The method of claim 1, comprising iterating generating and displaying the one or more offset images until the animation of the image is concluded.

5. The method of claim 1, wherein generating the one or more offset images comprises calculating a value for each pixel forming the image based upon the value of the corresponding pixel before and after an animation step.

6. The method of claim 5, wherein the value is between the value of the corresponding pixel at the beginning of the animation step and the value of the pixel at the end of the animation step if the value of the corresponding pixel changes.

7. One or more tangible media, comprising executable code configured to:

determine one or more pixel values of an image undergoing animation;

generate one or more transitional images based on the one or more pixel values; and

display the one or more transitional images as part of one or more animation steps by which the image is animated.

8. The one or more tangible media of claim 7, comprising code executable to determine a direction in which the image is animated.

9. The one or more tangible media of claim 7, wherein the executable code configured to generate the one or more transitional images generates an average or a weighted average pixel value for one or more pixels based upon an initial pixel value and a final pixel value for the respective pixels.

10. The one or more tangible media of claim 7, wherein the executable code configured to display the one or more transitional images orders the transitional images prior to displaying the transitional images.

11. The one or more tangible media of claim 7, comprising code executable to iterate the code configured to determine, generate, and display until an animation sequence is ended.

12. An electronic device, comprising:

a display;

one or more processors; and

a storage device;

wherein the one or more processors are configured to execute routines stored in the storage device for animating images on the display, wherein the routines are configured to display one or more offset images as part of each animation step and wherein each offset image includes pixel values that are between the pixel values for the respective pixels before and after a respective animation step if the respective pixel value changes.

13. The electronic device of claim 12, wherein the electronic device comprises one of a media player, a cellular phone, or a personal data organizer.

14. The electronic device of claim 12, wherein the electronic device comprises a portable electronic device.

15. The electronic device of claim 12, wherein the one or more processors are configured to generate the one or more offset images prior to displaying the one or more offset images.

16. An electronic device configured to display an animation, the electronic device comprising:

one or more processing components configured to execute code for;

displaying an image on a display of the electronic device, determining one or more animation steps to animate the image on the display, and displaying the animation steps in conjunction with one or more intermediary images such that the abruptness of each animation step is decreased for pixels that are changed in the animation step.

17. The electronic device of claim 16, wherein the one or more processing components are configured to generate the one or more intermediary images based on the beginning and ending pixel values for the respective animation step.

18. The electronic device of claim 17, wherein the intermediary images are generated as a fraction of the difference of the beginning and ending pixel values for the respective animation step.

19. An animation, comprising:

a series of animation steps, wherein some or all of the animation steps, when viewed sequentially create a perception of motion; and

one or more transitional images associated with some or all of the animation steps, the one or more transitional images comprising pixel values intermediate to the corresponding pixel values in the beginning and end of the respective animation step when the corresponding pixel values change in the animation step.

20. The animation of claim 19, wherein the one or more transitional images comprises pixel values that are an average or weighted average of the corresponding pixel values in the beginning and end of the respective animation step.