Imaging device and visual recognition support system employing imaging device
First Claim
Patent Images
1. An imaging device comprising:
- an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured; and
an output control device which controls an output level of a picture signal obtained by signal processing an image signal output from the image pickup device, wherein the output control device controls the output of a peak value of the picture signal when a predetermined test pattern is captured under a standard condition such that the peak value becomes 50 to 70 IRE.
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Abstract
An imaging device stores and photoelectric-converts incoming light from an object of which an image is to be captured with a CCD, and controls an output level of a picture signal obtained by signal processing an image signal output from the CCD. An output adjustment value of the picture signal in the output control is set to become 50 to 70 IRE according to a peak value of the picture signal when a test pattern is captured under standard conditions. Accordingly, it is possible to have a typical imaging device display a captured image darker, and thus enable imaging suitable for nighttime imaging and the like.
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Citations
15 Claims
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1. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured; and
an output control device which controls an output level of a picture signal obtained by signal processing an image signal output from the image pickup device, wherein the output control device controls the output of a peak value of the picture signal when a predetermined test pattern is captured under a standard condition such that the peak value becomes 50 to 70 IRE. - View Dependent Claims (2, 3, 4, 5)
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6. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured; and
an output control device which controls an output level of a picture signal obtained by signal processing an image signal output from the image pickup device, wherein when a peak value of a signal wave of the picture signal exceeds a predetermined value, the output control device controls the output level of the picture signal such that a peak value of the picture signal matches the predetermined value. - View Dependent Claims (7, 8, 9)
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10. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured;
an output control device which controls an output level of a picture signal obtained by signal processing an image signal output from the image pickup device; and
an illumination intensity detecting device which detects an illumination intensity of the incoming light, wherein the output control device changes a control target value of the output level based on detection results of the illumination intensity detecting device and controls the output level of a captured image from the picture signal so that the captured image becomes less than a predetermined value of luminance. - View Dependent Claims (11, 12)
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13. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured; and
output controlling means for controlling an output level of a picture signal obtained by signal processing an image signal output from the image pickup device, wherein the output controlling means controls the output of a peak value of the picture signal when a predetermined test pattern is captured under a standard condition such that that peak value becomes 50 to 70 IRE.
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14. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured; and
output controlling means for controlling an output level of a picture signal obtained by signal processing an image signal output from the image pickup device, wherein when a peak value of a signal wave of the picture signal exceeds a predetermined value, the output controlling means controls the output level of the picture signal such that a peak value of the picture signal matches the predetermined value.
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15. An imaging device comprising:
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an image pickup device which stores and photoelectric-converts incoming light from an object of which an image is to be captured;
output controlling means for controlling an output level of a picture signal obtained by signal processing an image signal output from the image pickup device; and
illumination intensity detecting means for detecting an illumination intensity of the incoming light, wherein the output controlling means changes a control target value of the output level based on detection results of the illumination intensity detecting means and controls the output level of a captured image from the picture signal so that the captured image becomes less than a predetermined value of luminance.
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Specification