发明名称 IMAGING DEVICE AND NOISE CORRECTION METHOD
摘要 PROBLEM TO BE SOLVED: To provide an imaging device in which the noise included in a captured image is corrected appropriately, and to provide a noise correction method.SOLUTION: Noise included in a captured image is corrected by using a plurality of noise images. A system control circuit 300 controls an imaging CMOS22 to capture a subject image by using arbitrary shooting conditions, thus obtaining a captured image. Subsequently, the shooting conditions and acquisition conditions are compared thus calculating adjustment coefficients. Thereafter, adjustment coefficients k1 and k2 are calculated by using the shooting conditions of the captured image and the acquisition conditions of noise images 1 and 2. Furthermore, noises a and b are corrected, by using the adjustment coefficients k3 obtained by subtracting the adjustment coefficient k1 from k2. D4=D3-k1 D1-k3 D2, where D1 is the pixel data of the noise image 1, D2 is the pixel data of the noise image 2, D3 is the pixel data of the captured image, and D4 is the pixel data of an image subjected to noise correction.
申请公布号 JP2016010008(A) 申请公布日期 2016.01.18
申请号 JP20140129580 申请日期 2014.06.24
申请人 RICOH IMAGING CO LTD 发明人 TSUNODA YOICHI;TERAUCHI MASAKAZU;ASAKURA NAOTO;NISHIMURA TAKEYOSHI
分类号 H04N5/243;H04N5/21 主分类号 H04N5/243
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