Imaging apparatus having a synchronous shooting function
First Claim
Patent Images
1. A camera comprising:
- an imaging element for taking a picture to obtain an image;
a detecting unit which detects a timing of blinking of light based on a timing of variation in luminance of an image obtained by the imaging element, wherein the light blinks periodically at a reference timing and the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing; and
an adjusting unit which adjusts a timing of exposure of the imaging element, based on the timing of blinking of light detected by the detecting unit,wherein the detecting unit detects the timing of blinking of light which blinks at the reference timing, based on a timing of variation in luminance of line images corresponding to particular lines respectively included in plural frames serially taken by the imaging element, each of the plural frames including at least one of said particular lines.
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Abstract
A camera is provided with an imaging element, and detects a timing of blinking of light which blinks periodically at a reference timing, based on a timing of variation in luminance of an image obtained by the imaging element, wherein the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing. Further, the timing of exposure of the imaging element is adjusted based on the detected timing of the blinking light, thereby synchronizing shooting operations of plural cameras with each other.
19 Citations
26 Claims
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1. A camera comprising:
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an imaging element for taking a picture to obtain an image; a detecting unit which detects a timing of blinking of light based on a timing of variation in luminance of an image obtained by the imaging element, wherein the light blinks periodically at a reference timing and the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing; and an adjusting unit which adjusts a timing of exposure of the imaging element, based on the timing of blinking of light detected by the detecting unit, wherein the detecting unit detects the timing of blinking of light which blinks at the reference timing, based on a timing of variation in luminance of line images corresponding to particular lines respectively included in plural frames serially taken by the imaging element, each of the plural frames including at least one of said particular lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of controlling a shooting operation in a camera, which has an imaging element for taking a picture to obtain an image, the method comprising:
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detecting a timing of blinking of light based on a timing of variation in luminance of an image obtained by the imaging element, wherein the light blinks periodically at a reference timing and the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing; and adjusting a timing of exposure of the imaging element based on the timing of blinking of light detected in the detecting step, wherein the detecting comprises detecting the timing of blinking of light which blinks at the reference timing, based on a timing of variation in luminance of line images corresponding to particular lines respectively included in plural frames serially taken by the imaging element, each of the plural frames including at least one of said particular lines.
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23. A camera system comprising:
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plural cameras, each having an imaging element for taking a picture to obtain an image, wherein; a particular camera among the plural cameras includes a light emitting unit for emitting light blinking periodically at a reference timing; and the plural cameras except the particular camera comprise; a detecting unit which detects a blinking timing of light based on a timing of variation in luminance of an image obtained by the imaging element, wherein the light blinks periodically at the reference timing and the image is taken by the imaging element under a condition of the light blinking periodically at the reference timing; and an adjusting unit which adjusts a timing of exposure of the imaging element, based on the timing of blinking of light detected by the detecting unit, wherein the detecting unit detects the timing of blinking of light which blinks at the reference timing, based on a timing of variation in luminance of line images corresponding to particular lines respectively included in plural frames serially taken by the imaging element, each of the plural frames including at least one of said particular lines. - View Dependent Claims (24, 25)
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26. A non-transitory computer-readable storage medium having stored thereon a program that is executable by a computer mounted on a camera, wherein the camera has an imaging element for taking a picture to obtain an image, and by the program being executable by the computer to cause the computer to implement functions of:
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a detecting unit which detects a timing of blinking of light based on a timing of variation in luminance of an image obtained by the imaging element, wherein the light blinks periodically at a reference timing and the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing; and an adjusting unit which adjusts a timing of exposure of the imaging element, based on the timing of blinking of light detected by the detecting unit, wherein the detecting unit detects the timing of blinking of light which blinks at the reference timing, based on a timing of variation in luminance of line images corresponding to particular lines respectively included in plural frames serially taken by the imaging element, each of the plural frames including at least one of said particular lines.
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Specification