최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0093981 (2013-12-02) |
등록번호 | US-8917169 (2014-12-23) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 7 인용 특허 : 871 |
A vehicular vision system includes a camera having a lens and a CMOS photosensor array having a plurality of photosensor elements. The camera is disposed at an interior portion of a vehicle equipped with the vehicular vision system. The camera one of (i) views exterior of the equipped vehicle throug
A vehicular vision system includes a camera having a lens and a CMOS photosensor array having a plurality of photosensor elements. The camera is disposed at an interior portion of a vehicle equipped with the vehicular vision system. The camera one of (i) views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle and (ii) views from the windshield of the equipped vehicle into the interior cabin of the equipped vehicle. A control includes an image processor that processes image data captured by the photosensor array. The image processor processes captured image data to detect an object viewed by the camera. The photosensor array is operable at a plurality of exposure periods and at least one exposure period of the plurality of exposure periods is dynamically variable.
1. A vehicular vision system, said vehicular vision system comprising: a camera comprising a lens and a CMOS photosensor array;wherein said photosensor array comprises a plurality of photosensor elements;wherein said camera is disposed at an interior portion of a vehicle equipped with said vehicular
1. A vehicular vision system, said vehicular vision system comprising: a camera comprising a lens and a CMOS photosensor array;wherein said photosensor array comprises a plurality of photosensor elements;wherein said camera is disposed at an interior portion of a vehicle equipped with said vehicular vision system;the equipped vehicle comprising a windshield;wherein one of (i) said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle and (ii) said camera views from the windshield of the equipped vehicle into an interior cabin of the equipped vehicle;a control comprising an image processor, said image processor processing image data captured by said photosensor array;wherein said image processor processes captured image data to detect an object viewed by said camera;wherein said photosensor array is operable at a plurality of exposure periods; andwherein at least one exposure period of said plurality of exposure periods is dynamically variable. 2. The vehicular vision system of claim 1, wherein said at least one exposure period is dynamically variable over a range depending on a light level detected by said vehicular vision system. 3. The vehicular vision system of claim 2, wherein a value of said at least one exposure period increases towards a maximum value with decrease in the light level, and wherein the value of said at least one exposure period decreases towards a minimum value with increase in the light level. 4. The vehicular vision system of claim 2, wherein said at least one exposure period is variable responsive to an ambient light level detected by said vehicular vision system. 5. The vehicular vision system of claim 2, wherein said plurality of exposure periods comprises a first exposure period and a second exposure period, and wherein a time period of exposure of said first exposure period is longer than a time period of exposure of said second exposure period. 6. The vehicular vision system of claim 1, wherein said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle, and wherein said photosensor array comprises an array of columns and rows of photosensor elements, and wherein said array has more columns than rows and wherein said array comprises at least 40 rows, and wherein said image processor processes captured image data to detect at least one of (a) a vehicle, (b) a headlight of a vehicle, (c) a taillight of a vehicle and (d) a road sign. 7. The vehicular vision system of claim 1, wherein said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle, and wherein, at least in part responsive to processing of captured image data by said image processor, said vehicular vision system is operable to control an exterior light of the equipped vehicle to limit debilitation of a driver of another vehicle, and wherein at least one of (a) control of the exterior light of the equipped vehicle involves adjustment of a light beam emitted by the exterior light of the equipped vehicle and (b) the exterior light of the equipped vehicle is operable to emit a plurality of light beams, and wherein said control adjusts between one light beam of said plurality of light beams and another light beam of said plurality of light beams. 8. The vehicular vision system of claim 1, wherein said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle, and wherein at least in part responsive to processing of captured image data by said image processor, said control at least in part controls at least one exterior light of the equipped vehicle, and wherein the at least one exterior light of the equipped vehicle comprises a headlight disposed at a front portion of the equipped vehicle and operable to illuminate with visible light a scene forward of and in a path of travel of the equipped vehicle, and wherein at least one of (a) said control, at least in part responsive to processing of captured image data by said image processor, controls a vehicular lighting switch and wherein said vehicular lighting switch controls the at least one exterior light of the equipped vehicle and (b) a manual vehicle light switch is actuatable to override said control. 9. The vehicular vision system of claim 1, wherein said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle, and wherein, at least in part responsive to processing of captured image data by said image processor, said vehicular vision system determines a presence of at least one of fog, snow and rain present exterior and forward of the equipped vehicle, and wherein at least one of (i) said vehicular vision system determines the presence of at least one of fog, snow and rain by recognizing scattering of light output by a headlight of the equipped vehicle by at least one of fog, snow and rain present exterior and forward of the equipped vehicle and (ii) said vehicular vision system, at least in part responsive to recognition of scattering of light output by a headlight of the equipped vehicle, controls the headlight of the equipped vehicle. 10. The vehicular vision system of claim 1, wherein said image processor compares captured image data with stored data and outputs a vehicle equipment control signal based on the comparison. 11. The vehicular vision system of claim 1, wherein at least one of (a) said control, at least in part responsive to processing of captured image data by said image processor, distinguishes between daytime and nighttime conditions and (b) said control, at least in part responsive to processing of captured image data by said image processor, determines a nighttime condition exists at an ambient light level that is less than about 500 lux. 12. The vehicular vision system of claim 1, wherein at least one of (a) said control, at least in part responsive to processing of captured image data by said image processor, determines a daytime condition and (b) said control, at least in part responsive to processing of captured image data by said image processor, determines an ambient light level present at the equipped vehicle. 13. The vehicular vision system of claim 1, wherein said camera views from the windshield of the equipped vehicle into the interior cabin of the equipped vehicle, and wherein said vehicular vision system includes supplemental source illumination having wavelengths within a responsive range of said photosensor array, and wherein at least one (a) said supplemental source illumination comprises infra-red supplemental source illumination, (b) said supplemental source illumination comprises a near infrared illumination source having a peak spectral output greater than about 750 nm, (c) said supplemental source illumination illuminates an illuminated target area that is at least partially viewed by said camera, (d) said supplemental source illumination has a peak spectral output between about 750 nm and 1200 nm, (e) said supplemental source illumination is chosen from at least one of a light-emitting diode and a laser, (f) said supplemental source illumination comprises a light-emitting diode, (g) said supplemental source illumination comprises a light-emitting diode chosen from a group consisting of a gallium arsenide light-emitting diode and a gallium aluminum arsenide light-emitting diode, (h) said vehicular vision system includes a lens to distribute illumination of said supplemental source illumination, (i) said vehicular vision system includes a lens that provides illumination in a cone of at least about 100 degrees, (j) said vehicular vision system includes a lens that provides illumination in a cone in a range from about 100 degrees to about 160 degrees, (k) said vehicular vision system includes an optical filter for said supplemental source illumination, (l) said vehicular vision system includes an optical filter for said supplemental source illumination and wherein said optical filter is chosen from one of an absorption filter and an interference filter, (m) said vehicular vision system includes an optical filter for said supplemental source illumination and wherein said optical filter comprises a long-wave pass absorption filter, (n) said supplemental source illumination is adjacent said photosensor array, (o) said supplemental source illumination is adjacent said photosensor array and an opaque barrier is between said supplemental source illumination and said photosensor array, and (p) said supplemental source illumination provides illumination only during an exposure period of said photosensor array. 14. The vehicular vision system of claim 1, wherein at least one of (i) said control determines a peak light level of at least one sub-array of said photosensor array, (ii) said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle with a field of view comprising a horizontal span and a vertical span and wherein said horizontal span is greater than said vertical span and (iii) said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle with a field of view comprising a vertical span that is asymmetric relative to the horizon, said vertical span comprising a first vertical span above a horizon and a second vertical span below the horizon and wherein said first vertical span has a different vertical dimension than said second vertical span. 15. A vehicular vision system, said vehicular vision system comprising: a camera comprising a lens and a CMOS photosensor array;wherein said photosensor array comprises a plurality of photosensor elements;wherein said photosensor array comprises an array of columns and rows of photosensor elements and wherein said array has more columns than rows and wherein said array comprises at least 40 rows;wherein said camera is disposed at an interior portion of a vehicle equipped with said vehicular vision system;the equipped vehicle comprising a windshield;wherein said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle;a control comprising an image processor, said image processor processing image data captured by said photosensor array;wherein said image processor processes captured image data to detect an object viewed by said camera;wherein said photosensor array is operable at a plurality of exposure periods;wherein at least one exposure period of said plurality of exposure periods is dynamically variable;wherein said at least one exposure period is dynamically variable over a range depending on a light level detected by said vehicular vision system; andwherein said image processor processes captured image data to detect at least one of (a) a vehicle, (b) a headlight of a vehicle, (c) a taillight of a vehicle and (d) a road sign. 16. The vehicular vision system of claim 15, wherein at least one of (a) said control, at least in part responsive to processing of captured image data by said image processor, distinguishes between daytime and nighttime conditions and (b) said control, at least in part responsive to processing of captured image data by said image processor, determines a nighttime condition exists at an ambient light level that is less than about 500 lux. 17. The vehicular vision system of claim 16, wherein at least one of (a) said control, at least in part responsive to processing of captured image data by said image processor, determines a daytime condition and (b) said control, at least in part responsive to processing of captured image data by said image processor, determines an ambient light level present at the equipped vehicle. 18. The vehicular vision system of claim 15, wherein at least one of (i) said control determines a peak light level of at least one sub-array of said photosensor array, (ii) said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle with a field of view comprising a horizontal span and a vertical span and wherein said horizontal span is greater than said vertical span and (iii) said camera views exterior of the equipped vehicle through the windshield of the equipped vehicle and forward of the equipped vehicle with a field of view comprising a vertical span that is asymmetric relative to the horizon, said vertical span comprising a first vertical span above a horizon and a second vertical span below the horizon and wherein said first vertical span has a different vertical dimension than said second vertical span. 19. A vehicular vision system, said vehicular vision system comprising: a camera comprising a lens and a CMOS photosensor array;wherein said photosensor array comprises a plurality of photosensor elements;wherein said camera is disposed at an interior portion of a vehicle equipped with said vehicular vision system;the equipped vehicle comprising a windshield;wherein said camera views from the windshield of the equipped vehicle into an interior cabin of the equipped vehicle;a control comprising an image processor, said image processor processing image data captured by said photosensor array;wherein said image processor processes captured image data to detect an occupant of the equipped vehicle viewed by said camera;wherein said photosensor array is operable at a plurality of exposure periods; andwherein at least one exposure period of said plurality of exposure periods is dynamically variable. 20. The vehicular vision system of claim 19, wherein at least one of (i) said control determines a peak light level of at least one sub-array of said photosensor array, (ii) said control, at least in part responsive to processing of captured image data by said image processor, determines a daytime condition and (iii) said control, at least in part responsive to processing of captured image data by said image processor, determines an ambient light level present in the interior cabin of the equipped vehicle.
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