Automatic vehicle equipment monitoring, warning, and control system
First Claim
1. An automatic vehicle equipment control system comprising:
- at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, and said at least one imager comprising a pixel array;
a color spectral filter array in optical communication with said at least one imager, said color spectral filter array comprising a plurality of color filters, at least a portion of which are different colors, and each said pixel being in optical communication with substantially one said spectral color filter;
a lens in optical communication with said at least one imager and said color spectral filter array; and
a processor in communication with said at least one imager, said processor being configured to analyze said continuous sequence of high dynamic range single frame images to detect any AC light sources and any DC light sources in said continuous sequence of high dynamic range single frame images, wherein said processor generates a control signal that is used to control vehicle equipment in response to analysis of said continuous sequence of high dynamic range single frame images, and wherein said processor is configured to respond differently to detection of an AC light source than to the detection of a DC light source,wherein said at least one imager is configured to have a sampling image repetition period that is longer than that of a flicker cycle period of said AC light source.
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Abstract
An automatic vehicle equipment control system and methods thereof are provided, the system includes at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, a processor, a color spectral filter array including a plurality of color filters, at least a portion of which are different colors, and pixels of an imager pixel array being in optical communication with substantially one spectral color filter, and a lens, wherein the imager is configured to capture a non-saturated image of nearby oncoming headlamps and at least one of a diffuse lane marking and a distant tail lamp in one image frame of the continuous sequence of high dynamic range single frame images, and the system configured to detect at least one of said highway markings and said tail lamps, and quantify light from the oncoming headlamp from data in the one image frame.
78 Citations
19 Claims
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1. An automatic vehicle equipment control system comprising:
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at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, and said at least one imager comprising a pixel array; a color spectral filter array in optical communication with said at least one imager, said color spectral filter array comprising a plurality of color filters, at least a portion of which are different colors, and each said pixel being in optical communication with substantially one said spectral color filter; a lens in optical communication with said at least one imager and said color spectral filter array; and a processor in communication with said at least one imager, said processor being configured to analyze said continuous sequence of high dynamic range single frame images to detect any AC light sources and any DC light sources in said continuous sequence of high dynamic range single frame images, wherein said processor generates a control signal that is used to control vehicle equipment in response to analysis of said continuous sequence of high dynamic range single frame images, and wherein said processor is configured to respond differently to detection of an AC light source than to the detection of a DC light source, wherein said at least one imager is configured to have a sampling image repetition period that is longer than that of a flicker cycle period of said AC light source. - View Dependent Claims (2, 3, 4, 5, 6, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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7. A automatic vehicle equipment control system comprising:
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at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, and said at least one imager comprising a pixel array; a color spectral filter array in optical communication with said at least one imager, said color spectral filter array comprising a plurality of color filters, at least portion of which are different colors, and each said pixel being in a optical communication with substantially one said spectral color filter; a lens in optical communication with said at least one imager and said color spectral filter array; and a processor in communication with said at least one imager, said processor being configured to detect an AC light source in said continuous sequence of high dynamic range single frame images, wherein said at least one imager is configured to have a sampling image repetition period that is longer than that of a flicker cycle period of said AC light source, wherein said imager is configured to have a non-harmonic frequency frame rate with respect to an AC light source, and wherein said non-harmonic frequency frame rate is a beat pattern in which a signal for a sub-sampled flicker frequency oscillates at a rate approximately equal to one half of said frame rate and a phase of said signal is inverted during each beat frequency half cycle phase reversal period.
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8. An automatic vehicle equipment control system comprising:
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at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, and said at least one imager comprising a pixel array; a color spectral filter array in optical communication with said at least one imager, said color spectral filter array comprising a plurality of color filters, at least a portion of which are different colors, and each said pixel being in optical communication with substantially one said spectral color filter; a lens in optical communication with said at least one imager and said color spectral filter array; and a processor in communication with said at least one imager, said processor being configured to detect an AC light source in said continuous sequence of high dynamic range single frame images, wherein said at least one imager is configured to have a sampling image repetition period that is longer than that of a flicker cycle period of said AC light source, and wherein said imager is configured to have a beat frequency frame rate with respect to an AC light source, such that a repetition rate of image acquisition for said beat frequency is approximately half a cycle period that is approximately two image acquisition periods so that during said beat frequency half cycle period, a phase of an alternating acquisition pattern shifts by approximately 180 degrees relative to a flicker cycle.
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10. An automatic vehicle equipment control system comprising:
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at least one imager configured to acquire a continuous sequence of high dynamic range single frame images, and said at least one imager comprising a pixel array; a color spectral filter array in optical communication with said at least one imager, said color spectral filter array comprising a plurality of color filters, at least a portion of which are different colors, and each said pixel being optical communication with substantially one said spectral color filter; a lens in optical communication with said at least one imager and said color spectral filter array; and a processor in communication with said at least one imager, said processor being configured to detect an AC light source in said continuous sequence of high dynamic range single frame images, wherein said at least one imager is configured to have a sampling image repetition period that is longer than that of a flicker cycle period of said AC light source, and wherein said processor is further configured to detect a plurality of lane markers in said image, and determine a change ratio of lane marker curvature to detect additional lane markers.
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Specification