Patent ID: 8849061

Claim:
A noise reduction device comprising: a noise reduction section configured to reduce noise included in an image signal, wherein the noise reduction section includes a first correlation detector configured to receive, as the image signal, first and second image signals obtained from an identical image, detect correlations between corresponding pixels between the first and second image signals, and output, based on the detected correlations, first degrees of correlation between the corresponding pixels, a first addition ratio determining section configured to determine, based on the first degrees of correlation, first addition ratios based on which the corresponding pixels are added up in first weighted addition averaging processes, and a first weighted addition averaging section configured to perform, based on the first addition ratios, the first weighted addition averaging processes on the corresponding pixels to generate a first output image signal from the first and second image signals, and output the first output image signal instead of the first image signal, and when each of the first degrees of correlation is relatively high, the first addition ratio determining section provides a relatively high proportion of the pixel of the second image signal in the first addition ratio.