Solid-state color image pickup device

Abstract

Abstract PURPOSE:To prevent the sresolution of a solid-state image pickup element from being deteriorated, even if the sensitivity is overlapped vertically, by improving the color filter arrangement and signal processing system. CONSTITUTION:An output of the solid-state image pickup element 1 having three-color filters is led to a one picture element delay circuit 2, a two-picture- element delay circuit 3, and a 1H delay circuit. Thus, a signal of 2G+Ye+Cy is obtained at an adder circuit 7 (where; G is a signal corresponding to green color filter, Ye is a signal to green+red color filter and Cy is a signal to green+blue color filter), a signal of 2G+Ye+Cy having a peak in fN/2 (where; fN is a Nyquist limit frequency) is obtained at a subtracting circuit 11, and a signal of 2G+Ye+Cy having a broad band is obtained at an adding circuit 11. Further, R and B signals are added to the said broad band 2G+Ye+Ce signal as G:R:B= 0.59:0.30:0.11 at the adding circuit 15 in a suitable rate and the broad band luminance signal Y is obtained as an output.

Inventors

• 👤 Yasushi Watanabe
• 👤 恭志 渡辺

Bibliographic Details