Patent ID: 7239758
Filing Date: 2007-07-03
Classification: H04N

Abstract:
1. A signal processing device for removing image noise comprising: a first storage part for recording first image data obtained by an image sensor receiving light from a field of view; a second storage part for recording second image data obtained by said image sensor with a shutter closed; and a processing part for reading said first image data recorded in said first storage part and said second image data recorded in said second storage part, and for performing data processing on the first and second image data, wherein said processing part determines, pixel by pixel, a situation of a noise output from the image sensor and in accordance with said noise situation, selectively performs, pixel by pixel, a replacement processing for replacing an output value of said first image data with an output value of one of proximate pixels of the same hue as said first image data, and a subtracting processing for subtracting an output value of said second image data from the output value of said first image data.