Imaging device and image processing program for estimating fixed pattern noise from partial noise output of available pixel area
First Claim
1. An imaging device comprising:
- an image capturing unit which generates image data by photoelectrically converting, pixel by pixel, a subject image formed on an available pixel area of a light-receiving surface;
a noise obtaining unit reading a noise output from a partial area of said available pixel area;
a fixed noise calculating unit which calculates an estimation of fixed pattern noise of said available pixel area by regularly expanding a noise pattern in said available pixel area, the noise pattern being obtained from said noise output read from the partial area; and
a noise eliminating unit subtracting said fixed pattern noise from said image data.
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Abstract
An imaging device of the present invention includes an image capturing unit, a noise obtaining unit, a fixed noise calculating unit, and a noise eliminating unit. The image capturing unit generates image data by photoelectrically converting, pixel by pixel, a subject image formed on an available pixel area of a light-receiving surface. The noise obtaining unit reads a noise output from a partial area of the available pixel area. The fixed noise calculating unit calculates an estimation of fixed pattern noise of the available pixel area based on the noise output read from the partial area. The noise eliminating unit subtracts the fixed pattern noise from the image data.
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Citations
9 Claims
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1. An imaging device comprising:
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an image capturing unit which generates image data by photoelectrically converting, pixel by pixel, a subject image formed on an available pixel area of a light-receiving surface;
a noise obtaining unit reading a noise output from a partial area of said available pixel area;
a fixed noise calculating unit which calculates an estimation of fixed pattern noise of said available pixel area by regularly expanding a noise pattern in said available pixel area, the noise pattern being obtained from said noise output read from the partial area; and
a noise eliminating unit subtracting said fixed pattern noise from said image data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An imaging device comprising:
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an image capturing unit which generates image data by photoelectrically converting, pixel by pixel, a subject image formed on an available pixel area of a light-receiving surface;
a noise obtaining unit reading a noise output from a partial area of said available pixel area; and
a file generating unit generating an image file by appending said noise output as information to said image data. - View Dependent Claims (9)
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Specification