APPARATUS AND METHOD FOR CORRECTING BACKLIGHT OF CAMERA
First Claim
1. A method for correcting the backlight of a camera having a shutter configured to operate in a backlight shooting mode, comprising:
- varying a speed of the shutter between a long shutter speed and a short shutter speed;
synthesizing an image shot with the long shutter speed with an image shot with the short shutter speed to produce a final image; and
outputting the final image.
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Accused Products
Abstract
An apparatus and method for correcting the backlight of a camera are disclosed. When the camera for photographing a moving image by a photographing device, such as a general-purpose CCD or a general-purpose CMOS, enters into a backlight shooting state for simultaneously photographing an object with a very high luminance level and an object with a very low luminance level, as the shutter speed of the photographing device is varied to a long shutter speed and a short shutter speed, an image shot with the long shutter speed and an image shot with the short shutter speed are synthesized and outputted, thereby enabling a proper luminance level object photographing operation for each of the objects. Accordingly, it is possible to efficiently prevent the phenomenon that the object with the low luminance level looks dark due to the object with the high luminance level.
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Citations
36 Claims
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1. A method for correcting the backlight of a camera having a shutter configured to operate in a backlight shooting mode, comprising:
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varying a speed of the shutter between a long shutter speed and a short shutter speed; synthesizing an image shot with the long shutter speed with an image shot with the short shutter speed to produce a final image; and outputting the final image. - View Dependent Claims (2, 3, 4, 5)
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6. A method for correcting the backlight of a camera having a shutter configured to operate in a backlight shooting mode, comprising:
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varying a speed of the shutter over a plurality of fields so that a long shutter speed operation and a short shutter speed operation are performed once respectively per field, the short shutter speed operation being performed at a starting portion of a corresponding field; increasing a digital gain of images shot with the long shutter speed; reducing a digital gain of images shot with a short shutter speed; synthesizing long and short shutter speed images into a final image; and outputting the final image. - View Dependent Claims (7, 8, 9)
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10. A method for correcting the backlight of a camera having a shutter configured to operate in a backlight shooting mode, comprising:
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varying a speed of the shutter over a plurality of fields so that a long shutter speed operation and a short shutter speed operation are performed once respectively per field, the short shutter speed operation being performed at an end portion of a corresponding field; increasing a digital gain for images shot with the long shutter speed; decreasing a digital gain for images shot with the short shutter speed; synthesizing long and short shutter speed images into a final image; and outputting the final image. - View Dependent Claims (11, 12, 13)
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14. A method for correcting the backlight of a camera having a shutter configured to operate in a backlight shooting mode, comprising:
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varying a speed of the shutter over a plurality of fields so that a long shutter speed operation is performed once and a short shutter speed operation is performed twice respectively per field; increasing a digital gain for images shot with the long shutter speed; decreasing a digital gain for images shot with the short shutter speed; synthesizing long and short shutter speed images into final images; and outputting the final images. - View Dependent Claims (15, 16, 17, 18, 25)
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19. An apparatus for correcting the backlight of a camera, comprising:
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a shutter; a controller configured to vary a speed of the shutter between a long shutter speed and a short shutter speed; and a signal processor configured to synthesize an image shot with the long shutter speed with an image shot with the short shutter speed to produce a final image, and to output the final image. - View Dependent Claims (20, 21, 22, 23)
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24. An apparatus for correcting the backlight of a camera, comprising:
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a shutter; a controller configured to vary a speed of the shutter over a plurality of fields so that a long shutter speed operation and a short shutter speed operation are performed once respectively per field, the short shutter speed operation being performed at a start portion of a corresponding field; and a signal processor configured to increase a digital gain of images shot with the long shutter speed; reduce a digital gain of images shot with a short shutter speed; synthesize long and short shutter speed images into a final image; and output the final image. - View Dependent Claims (26, 27)
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28. An apparatus for correcting the backlight of a camera, comprising:
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a shutter; a controller configured to vary a speed of the shutter over a plurality of fields so that a long shutter speed operation and a short shutter speed operation are performed once respectively per field, the short shutter speed operation being performed at an end portion of a corresponding field; and a signal processor configured to increase a digital gain of images shot with the long shutter speed; reduce a digital gain of images shot with a short shutter speed; synthesize long and short shutter speed images into a final image; and output the final image. - View Dependent Claims (29, 30, 31)
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32. An apparatus for correcting the backlight of a camera, comprising:
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a shutter; a controller configured to vary a speed of the shutter over a plurality of fields so that a long shutter speed operation is performed once and a short shutter speed operation is performed twice respectively per field; and a signal processor configured to increase a digital gain for images shot with the long shutter speed; decrease a digital gain for images shot with the short shutter speed; synthesize long and short shutter speed images into final images; and output the final images. - View Dependent Claims (33, 34, 35, 36)
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Specification