Displaying and navigating digital media

1. An apparatus for displaying and navigating media comprising:

a projector arranged to display image files stored in a media store; and

a sensing system arranged to determine a distance between said apparatus and a projection surface,

wherein an image file is selected from the media store dependent upon said determined distance between said apparatus and said projection surface.

2. An apparatus according to claim 1 , further comprising:

a processor; and

a memory arranged to store executable instructions to cause the processor to select media from a media store dependent upon said determined distance and to display said selected media using said projector.

3. An apparatus according to claim 1 , wherein said sensing system comprises a distance sensor.

4. An apparatus according to claim 1 , wherein said sensing system comprises a computer vision system.

5. An apparatus according to claim 1 , wherein said media comprises at least one of: an image, a video clip, an audio clip and a data file.

6. An apparatus according to claim 1 , wherein media is selected from a media store dependent upon said determined distance between said apparatus and said projection surface and a rate of change of said distance.

7. An apparatus according to claim 1 , further comprising means for detecting an additional movement of said projection surface.

8. An apparatus according to claim 7 , wherein said means comprises a computer vision system.

9. A method of displaying and navigating media comprising:

storing a plurality of images to a media store for a projector;

determining a distance between a projector and a projection surface; and

selecting at least one image for display from a plurality of images stored in a media store for display based on said distance; and

displaying said selected image using said projector.

10. A method according to claim 9 , wherein selecting media for display based on said distance comprises:

selecting the media item for display based on said distance and a rate of change of said distance.

11. A method according to claim 9 , wherein said media item is selected sequentially from said plurality of media items based on said distance.

12. A method according to claim 9 , further comprising:

detecting a predefined movement of said projection surface, said predefined movement being the result of at least one of the following:

tapping the projection surface against another surface;

tilting the projection surface;

moving the projection surface in a side to side motion;

moving the projection surface in an up and down motion; or

moving the projection surface in a circular motion; and

wherein selecting media for display based on said distance comprises:

selecting media for display based on said distance and said detected predefined movement.

13. A method according to claim 9 , further comprising:

detecting a predefined movement of said projection surface; and

wherein displaying said selected media using said projector comprises:

upon detection of said predefined movement, playing said selected media.

14. A method according to claim 9 , further comprising:

detecting a predefined movement of said projection surface;

reading identification information from said projection surface; and

associating said identification information with media currently being displayed.

15. A method according to claim 14 , wherein said identification information comprises one of a barcode and an RFID tag.

16. A method according to claim 9 , wherein said media item comprises at least one of: an image, a video clip, an audio clip or a data file.

17. A method of displaying and navigating media comprising:

determining a first distance between a projector and a projection surface; and

selecting a first image file for display from a plurality of image files stored in a media store for display based in part on the first distance; and

displaying the selected first image file using the projector;

moving the projector or the projection surface to a new position;

determining a second distance between the projector and the projection surface; and

selecting a second image file for display from the plurality of image files stored in the media store for display based on the second distance; and

displaying the selected second image file using the projector.