Patent ID: 6559886
Filing Date: 2003-05-06
Classification: H04N

Abstract:
A luminance signal processing circuit for a color video camera, generating a luminance signal from an output signal from a solid state image pickup device having a plurality of lines obtained by repeating a pair of pixels having color filters, the luminance signal processing circuit comprising:a circuit in which a light transmittance of one of the pair of pixels and a light transmittance of the other are represented by T1 and T2, respectively, a photo detection signal from one of the pair of pixels is multiplied by (T1+T2)/(2Ã—T1) in advance, a photo detection signal from the other of the pair of pixels is multiplied by (T1+T2)/(2Ã—T2), and the luminance signal is generated by a low-frequency component of a signal obtained by synthesizing these photo detection signals.