Apparatus for and method of extracting image
First Claim
Patent Images
1. An apparatus for extracting an image of one object by comparing images obtained respectively by a plurality of imaging units, comprising:
- a luminance signal adjusting unit for using one of said imaging units as a reference imaging unit and another imaging unit than said reference imaging unit as a searching imaging unit, and adjusting a luminance signal from said reference imaging unit or said searching imaging unit such that the luminance signal of a reference image obtained by said reference imaging unit is greater by a predetermined amount than the luminance signal of a searching image obtained by said searching imaging unit;
an object area setting unit for setting an object area including a particular object in said reference image;
an image comparing unit for comparing an image of said object area and said searching image with each other; and
an image extracting unit for extracting an image relating to said particular object from said searching image based on a comparison result from said image comparing unit.
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Abstract
The luminance signal of a reference image obtained by an infrared camera is adjusted such that the luminance signal of the reference image obtained is greater at all times than the luminance signal of a searching image obtained by an infrared camera. Correlative calculations are performed on the reference image and the searching image to detect one object in the reference image and the searching image without detecting the background of the images in error.
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Citations
13 Claims
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1. An apparatus for extracting an image of one object by comparing images obtained respectively by a plurality of imaging units, comprising:
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a luminance signal adjusting unit for using one of said imaging units as a reference imaging unit and another imaging unit than said reference imaging unit as a searching imaging unit, and adjusting a luminance signal from said reference imaging unit or said searching imaging unit such that the luminance signal of a reference image obtained by said reference imaging unit is greater by a predetermined amount than the luminance signal of a searching image obtained by said searching imaging unit;
an object area setting unit for setting an object area including a particular object in said reference image;
an image comparing unit for comparing an image of said object area and said searching image with each other; and
an image extracting unit for extracting an image relating to said particular object from said searching image based on a comparison result from said image comparing unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for extracting an image of one object by comparing images obtained respectively by a plurality of imaging units, comprising:
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an image selecting unit for selecting one of the images obtained by said imaging units;
an object area setting unit for setting an object area including a particular object in said image selected by said image selecting unit;
an image comparing unit for comparing an image of said object area and another image than said selected image with each other; and
an image extracting unit for extracting an image relating to said particular object from said other image based on a comparison result from said image comparing unit;
wherein said image selecting unit selects an image having a greatest luminance signal from the images obtained by said imaging units. - View Dependent Claims (8, 9)
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10. A method of extracting an image of one object by comparing images obtained respectively by a plurality of imaging units, comprising the steps of:
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using one of said imaging units as a reference imaging unit and another imaging unit than said reference imaging unit as a searching imaging unit, and adjusting a luminance signal from said reference imaging unit or said searching imaging unit such that the luminance signal of a reference image obtained by said reference imaging unit is greater by a predetermined amount than the luminance signal of a searching image obtained by said searching imaging unit;
setting an object area including a particular object in said reference image;
comparing an image of said object area and said searching image with each other; and
extracting an image relating to said particular object from said searching image based on a comparison result of said comparing step. - View Dependent Claims (11)
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12. A method of extracting an image of one object by comparing images obtained respectively by a plurality of imaging units, comprising the steps of:
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selecting an image having a greatest luminance signal from the images obtained by said imaging units;
setting an object area including a particular object in said selected image;
comparing an image of said object area and another image than said selected image with each other; and
extracting an image relating to said particular object from said other image based on a comparison result of said step of comparing. - View Dependent Claims (13)
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Specification