Camera glare reduction system and method
First Claim
1. A camera or video system, comprising:
- a light source;
a first polarized filter for polarizing light emanating from said light source, wherein said first polarized filter comprises an active polarized filter;
a second polarized filter for performing polarized filtering on a received light of which at least a portion originates from said light source;
an image-capturing device for receiving said filtered light;
an input device; and
a processor for controlling said polarization of said active polarized filter in response to a signal generated by said input device.
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Accused Products
Abstract
Various image-capturing systems are disclosed that use polarized filters to reduce or control glare effects on captured images. In one embodiment, the system includes a light source, a first polarized filter adapted to polarize light emanating from the light source; a second polarized filter adapted to perform polarized filtering on received light; and an image-capturing device adapted to receive the filtered light. In another embodiment, the system further includes an actuator to selectively move any of the polarized filter into and out of the light path. In yet another embodiment, a method of forming a resultant image comprises recording a first image with a filter set to a first polarization angle, recording a second image with the filter set to a second polarization angle, and blending the first and second images. The recording of the first and second images may be performed simultaneously or at different times.
44 Citations
21 Claims
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1. A camera or video system, comprising:
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a light source; a first polarized filter for polarizing light emanating from said light source, wherein said first polarized filter comprises an active polarized filter; a second polarized filter for performing polarized filtering on a received light of which at least a portion originates from said light source; an image-capturing device for receiving said filtered light; an input device; and a processor for controlling said polarization of said active polarized filter in response to a signal generated by said input device. - View Dependent Claims (2)
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3. A camera or video system, comprising:
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a light source; a first polarized filter for polarizing light emanating from said light source; a second polarized filter for performing polarized filtering on a received light of which at least a portion originates from said light source, wherein said second polarized filter comprises an active polarized filter; an image-capturing device for receiving said filtered light; an input device; and a processor for controlling said polarization of said active polarized filter in response to a signal generated by said input device. - View Dependent Claims (4)
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5. A camera or video system, comprising:
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a light source; an image-capturing device for receiving light from said light source; a polarized filter; an actuator for selectively moving said polarized filter into and out of a path of said light; an input device; and a processor for controlling said actuator in moving said polarized filter in response to a signal generated by said input device. - View Dependent Claims (6)
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7. A method of generating a resultant image, comprising:
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setting an active polarizing filter to a first polarization angle; recording a first image at a first time, wherein at least a portion of light used to generate said first image passes through said active polarizing filter when set to said first polarization angle; setting said active polarizing filter to a second polarization angle that is different than said first polarization angle; recording a second image at a second time different than said first time, wherein at least a portion of light used to generate said second image passes through said active polarizing filter when set to said second polarization angle; and blending said first and second images to form said resultant image. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A camera or video system, comprising:
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a light source; a first polarized filter for polarizing light emanating from said light source; a beam splitter for splitting a portion of said polarized light into first and second light components; a second polarized filter for performing polarized filtering on said first light component; a first image-capturing device for generating a first image from said filtered first light component; a third polarized filter for performing polarized filtering on said second light component;
a second image-capturing device for generating a second image from said filtered second light component; anda device for blending the first and second images to form an output image. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification