Title :
Design concept for a low-noise CCD image sensor based on subjective evaluation
Author :
Nishida, Yasuaki ; Koike, Junro ; Ohtake, Hiroshi ; Abe, Masahide ; Yoshikawa, Dsh Igeo
Author_Institution :
NHK Sci. & Tech. Res. Lab., Tokyo, Japan
fDate :
2/1/1989 12:00:00 AM
Abstract :
To achieve a high-performance image sensor for a broadcast TV camera, several studies of the noise characteristics of a CCD image sensor are described. The noise perception limit and the dependence of random noise and fixed pattern noise (FPN) on signal charge in a CCD imager were measured to obtain a correlation between measured noise and subjective noise. A method has been devised to measure FPN and random noise separately. Using this method, it has been confirmed that noise can be reduced to less than the perception limit using new noise-suppression techniques
Keywords :
CCD image sensors; electric noise measurement; electron device noise; semiconductor technology; television broadcasting; television camera tubes; CCD image sensor; broadcast TV camera; dependence of random noise; design concept; fixed pattern noise; high-performance image sensor; measured noise; noise characteristics; noise perception limit; noise-suppression techniques; signal charge; subjective evaluation; subjective noise; Brightness; Cameras; Charge coupled devices; Charge-coupled image sensors; Circuit noise; Image sensors; Noise measurement; Noise reduction; Solid state circuits; TV broadcasting;
Journal_Title :
Electron Devices, IEEE Transactions on
