Digital image acquisition system with portrait mode
First Claim
1. A digital image acquisition system having no photographic film, the system comprising an apparatus for capturing digital images and a flash unit for providing illumination during image capture, the system having a portrait mode for generating an image of a foreground object against a blurred background, the portrait mode being operable to capture first, second and third images of nominally the same scene, not necessarily in the order stated, one of the first and second images being taken with flash and the other being taken without flash, and the third image being blurred compared to the first and second images, the portrait mode further being operable to determine foreground and background regions of the scene using the first and second images, and to substitute the blurred background of the third image for the background of a substantially in-focus image of the scene.
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Accused Products
Abstract
A digital image acquisition system having no photographic film comprises an apparatus for capturing digital images and a flash unit for providing illumination during image capture. The system has a portrait mode for generating an image of a foreground object against a blurred background, the portrait mode being operable to capture first, second and third images (A, B and C) of nominally the same scene. One of the first and second images (A, B) is taken with flash and the other is taken without flash, and the third image (C) is blurred compared to the first and second images. The portrait mode is further operable to determine foreground and background regions of the scene using the first and second images (A, B), and to substitute the blurred background of the third image (C) for the background of an in-focus image of the scene. In one embodiment the in-focus image is one of the first and second images. In another embodiment the in-focus image is a fourth image.
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Citations
22 Claims
- 1. A digital image acquisition system having no photographic film, the system comprising an apparatus for capturing digital images and a flash unit for providing illumination during image capture, the system having a portrait mode for generating an image of a foreground object against a blurred background, the portrait mode being operable to capture first, second and third images of nominally the same scene, not necessarily in the order stated, one of the first and second images being taken with flash and the other being taken without flash, and the third image being blurred compared to the first and second images, the portrait mode further being operable to determine foreground and background regions of the scene using the first and second images, and to substitute the blurred background of the third image for the background of a substantially in-focus image of the scene.
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17. A method of generating a digital image of a foreground object against a blurred background, the method comprising:
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capturing first, second and third images of nominally the same scene, not necessarily in the order stated, one of the first and second images being taken with flash and the other being taken without flash, and the third image being blurred compared to the first and second images, determining foreground and background regions of the scene using the first and second images, and substituting the blurred background of the third image for the background of a substantially in-focus image of the scene. - View Dependent Claims (18, 19)
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20. One or more processor readable storage devices having processor readable code embodied thereon, said processor readable code for programming one or more processors to perform a method of generating a digital image of a foreground object against a blurred background, the method comprising:
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capturing first, second and third images of nominally the same scene, not necessarily in the order stated, one of the first and second images being taken with flash and the other being taken without flash, and the third image being blurred compared to the first and second images, determining foreground and background regions of the scene using the first and second images, and substituting the blurred background of the third image for the background of a substantially in-focus image of the scene. - View Dependent Claims (21, 22)
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Specification