1. A CMOS image sensor having a multitude of pixels in an image sensor plane given in a form of an array having I max rows and J max columns, wherein; the said multitude of pixels are comprised of sensitive pixel, the said CMOS image sensor has a reference point having a row number I 0 and a column number J 0 , the said row number I 0 is a real number larger than 1 and smaller the I max , the said column number J 0 is a real number larger than 1 and smaller than J max , in a first rectangular coordinate system, wherein; an axis that passes through the said reference point and is parallel to the sides of the image sensor plane along the lateral direction is taken as an x-axis, and the positive x-axis runs from the left side of the said image sensor plane to the right side, an axis that passes through the said reference point and is parallel to the sides of the image sensor plane along the longitudinal direction is taken as an y-axis, and the positive y-axis runs from the top end of the said image sensor plane to the bottom end, a center coordinate of a sensitive pixel P(I, J) with row number I and a column number J is given as (x I,J , y I,J ), wherein; pixels P(I,J<J 0 ) belong to a column with a column number J smaller than J 0 from a curve open toward the positive x-axis, pixels P(I,J<J 0 ) belonging to a column with a column number J larger than J 0 form a curve open toward the negative x-axis, pixels P(I,<I 0 , J) belonging to a row number I smaller than I 0 form a curve open toward the negative y-axis, pixels P(I<I 0 J) belonging to a row with ta row number I larger than I 0 form a curve open toward the positive y-axis.