“…Noise and DR are important parameters in determining the performance of CIS. Various approaches have been proposed to reduce noise and extend DR, based on various approaches such as linear-logarithmic CIS, multiple sampling, overflow integration capacitor and dual sampling [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. These approaches, however, suffer from variously noise, nonlinearity, lower sensitivity, reduced operating speed, and lower resolution.…”