Method and apparatus for providing live view and instant review in an image capture device

• US 6,137,534 A
• Filed: 07/10/1997
• Issued: 10/24/2000
• Est. Priority Date: 07/10/1997
• Status: Expired due to Term

• Current Assignee: FlashPoint Technology, Inc.
• Original Assignee: FlashPoint Technology, Inc.
• Inventors: Anderson, Eric C.
• Primary Examiner(s): Garber, Wendy
• Assistant Examiner(s): MOE, AUNG SOE
• Application Number:
  US08/890,896
• Time in Patent Office: 1,202 Days
• Field of Search: 348/222, 348/231, 348/232, 348/233, 348/333, 348/376, 348/207, 358/906, 358/909.1
• US Class Current: 348/222.1
• CPC Class Codes: H04N 1/0044 for image preview or review, e.g. to help the user position a sheet
• CPC Class Codes: H04N 1/00442 Simultaneous viewing of a plurality of images, e.g. using a mosaic display arrangement of thumbnails
• CPC Class Codes: H04N 1/00453 arranged in a two dimensional array
• CPC Class Codes: H04N 1/00458 Sequential viewing of a plurality of images, e.g. browsing or scrolling
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/2137 with temporary storage before final recording, e.g. in a frame buffer
• CPC Class Codes: H04N 1/2158 using a detachable storage unit
• CPC Class Codes: H04N 1/32128 attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image for information embedded in the image H04N1/32144
• CPC Class Codes: H04N 2201/3264 of sound signals
• CPC Class Codes: H04N 23/632 for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters

Abstract

A method and system for providing instant review of a last image in an image capture device is disclosed. The image capture device includes a viewfinder for displaying a live image and each image of a plurality of previously captured images. The method and system include selecting instant review of the last image captured by the image capture device, determining the status and location of the last image, and providing the last image to the viewfinder for display. Therefore, the image capture device is capable of displaying the last image substantially immediately after the last image has been captured. In another aspect, the image capture device contains an image processing system. In this aspect, the method and system include allowing a user to access a play mode and a review mode while the last image captured undergoes processing by the image processing system.

Claims

1. A method for providing instant review of a last image captured by an image capture device, the image capture device including a viewfinder for displaying a live image and each image of a plurality of captured images, the method comprising the steps of:

(a) allowing a user to select instant review of a last image captured by the image capture device;

(b) determining a status and location of the last image, the status and location determining step (b) further including the steps of

(b1) determining if the last image is stored in the buffer;

(b2) checking a status of the last image in the image processing system if the last image is not stored in the buffer, the status checking step (b2) further including the step of

(b2i) determining if a screennail image corresponding to the last image has been generated; and

(c) providing the last image to the viewfinder for display to allow the last image to be edited before image processing for the last image is completed, the last image providing step further including the steps of

(c1) providing the last image from the buffer to the viewfinder if the last image is stored in the buffer; and

(c2) retrieving and resizing the screennail image and providing the screennail image to the viewfinder if the screennail image corresponding to the last image has been generated;

the retrieving and providing step (c2) further including the step of

(c2i) creating the screennail image if the screennail image has not been generated;

wherein the image capture device is capable of displaying the last image substantially immediately after the last image has been captured.

2. The method of claim 1 wherein step (a) further comprises the step of:

(a1) providing a switch for allowing the user to access the instant review mode.

3. The method of claim 2 wherein step the switch further comprises a locked position, the locked position for locking the image capture device in the instant review mode, wherein the image capture device further includes a shutter button, and wherein step (a1) further comprises the step of:

(a1i) allowing the user to place the switch in the locked position; and

wherein step (a) further comprises the step of;

(a2) allowing the user to depress the shutter button to capture a next image, wherein the next image becomes the last image.

4. The method of claim 3 wherein the shutter button further includes a first position and a second position, the second position for capturing an image, where step (a2) further comprises the step of:

(a2) allowing the user to depress the shutter button to the second position to capture the last image;

the method further comprising the step of;

(d) removing the last image from the viewfinder if the shutter button is released and depressed into the first position after capture of the last image.

5. The method of claim 4 further comprising the step of:

(e) providing the last image to the viewfinder if the shutter button is again released from the first position.

6. The method of claim 5 wherein the image capture device is a digital camera.

7. The method of claim 3 further comprising the step of:

(d) removing the last image from the viewfinder when a predetermined time interval has elapsed.

8. The method of claim 1 wherein step (a) further comprises the step of:

(a1) accessing an instant review mode via an icon displayed on the viewfinder.

9. The method of claim 1 wherein the image capture device further includes an image processing system for processing each of the plurality of previously captured images, the method further comprising the step of:

(d) allowing a user to access a play mode and a review mode while the last image captured undergoes processing by the image processing system.

10. The method of claim 9 wherein the image processing system further provides a plurality of screennail images corresponding to the plurality of images, and

wherein step (d) further comprises the step of:

(d1) retrieving, resizing, and providing the particular screennail image to the viewfinder if play mode has been accessed.

11. The method of claim 10 wherein the image processing system further provides a plurality of thumbnail images corresponding to the plurality of previously captured images, wherein step (b) further comprises the step of:

(b2) determining whether a portion of the plurality of thumbnail images have been generated; and

wherein step (d) further comprises the step of;

(d2) retrieving, resizing, and providing the portion of the plurality of thumbnail images to the viewfinder if review mode has been accessed.

12. The method of claim 11 wherein step (d1) further comprises the steps of:

(d1i) creating the screennail image if the screennail image has not been generated.

13. The method of claim 12 wherein step (d2) further comprises the steps of:

(d1i) creating the portion of the plurality of thumbnail images if a thumbnail image of the portion of the plurality of thumbnail images has not been generated.

14. The method of claim 13 wherein the image capture device is a digital camera.

15. The method of claim 1 wherein the image capture device is a digital camera.

16. The method of claim 1 wherein the user selecting step (a) further includes the step of:

(a1) allowing a user to toggle between a live view and the last image before the image processing of the last image is completed.

17. An image capture device for providing instant review of a last image captured by the image capture device comprising:

a viewfinder for displaying a live image and each image of a plurality of previously captured images;

a buffer coupled to the viewfinder for storing an image for display on the viewfinder;

an image processing system coupled to the viewfinder for providing a plurality of screennail images corresponding to the plurality of images;

selection means coupled with the viewfinder for selecting instant review of the last image captured by the image capture device;

means coupled to the selection means for determining the status and location of the last image, the status and location determining means further including

buffer determining means for determining if the last image is stored in the buffer; and

means for checking a status of the last image in the image processing system if the last image is not stored in the buffer, the checking means further including

screennail determining means for determining if the screennail image has been generated;

means coupled to the determining means for providing the last image to the viewfinder for display to allow the last image to be edited before image processing for the last image is completed, the last image providing means further including

means coupled to the buffer for providing the last image from the buffer to the viewfinder if the last image is stored in the buffer;

the last image providing means further including

means for retrieving, decompressing, and resizing the screennail image if the screennail image has been generated; and

means coupled to the retrieving means for providing the screennail image to the viewfinder; and

means coupled to the means for providing the screennail to the viewfinder for creating the screennail corresponding if the screennail image has not been generated; and

wherein the image capture device is capable of displaying the last image substantially immediately after the last image has been captured.

18. The image capture device of claim 17 wherein the selection means further comprise:

a switch for accessing an instant review mode.

19. The image capture device of claim 18 wherein the switch further comprises:

a locked position, the locked position for locking the image capture device in the instant review mode;

the image capture device further comprising;

a shutter button coupled to the switch for capturing an image and activating the instant review mode.

20. The image capture device of claim 19 wherein the shutter button further comprises:

a first position and a second position, the second position for capturing an image; and

wherein the image capture device further comprises;

means coupled to the viewfinder for removing the last image from the viewfinder if the shutter button is released and depressed into the first position.

21. The image capture device of claim 20 further comprising:

means coupled to the shutter button for providing the last image to the viewfinder it the shutter button is released from the first position.

22. The image capture device of claim 19 further comprising:

means coupled to the viewfinder for removing the last image from the viewfinder when a predetermined time interval has elapsed.

23. The system of claim 19 wherein the image processing system further provides a plurality of thumbnail images corresponding to the plurality of previously captured images, the status and location determining means further comprise:

means for determining whether a portion of the plurality of thumbnail images have been generated; and

the system further comprising;

means for retrieving, resizing, and providing the portion of the plurality of thumbnail images to the viewfinder if review mode has been accessed.

24. The system of claim 23 wherein the screennail retrieving means further comprise:

means for creating the screennail image if the screennail image has not been generated.

25. The system of claim 24 wherein the thumbnail retrieving means further comprise:

means for creating the portion of the plurality of thumbnail images if a thumbnail image of the potion of the plurality of thumbnail images has not been generated.

26. The system of claim 25 wherein the image capture device is a digital camera.

27. The image capture device of claim 17 wherein the selection means further comprise:

means for accessing an instant review mode via an icon displayed on the viewfinder.

28. The image capture device of claim 27 wherein the viewfinder further comprises a LCD screen.

29. The image capture device of claim 28 further comprising:

means for annotating the last image captured.

30. The image capture device of claim 29 wherein the annotating means further comprise:

means for adding sound to the last image captured.

31. The image capture device of claim 30 wherein the image capture device is a digital camera.

32. The system of claim 17 further comprising:

an image processing system for processing each of the plurality of previously captured images, the image processing system allowing a user to access a play mode and a review mode while the last image captured undergoes processing by the image processing system.

33. The system of claim 32 wherein the image processing system further provides a plurality of screennail images corresponding to the plurality of images, the system further comprising:

means for retrieving, resizing, and providing the particular screennail image to the viewfinder if play mode has been accessed.

34. The image capture device of claim 17 wherein the selection means further comprise:

means for allowing a user to toggle between a live view and the last image before the image processing of the last image is completed.