Image-processing apparatus and image-pickup apparatus

Details Image-processing apparatus and image-pickup apparatus Image-processing apparatus and image-pickup apparatus

2011-08-09

2011-08-09

Chan, Jason (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S222100, C348S228100

Reexamination Certificate

active

07995112

ABSTRACT:
An image-processing apparatus includes an integration section to integrate an image signal in more than one unit of horizontal synchronization period; an interpolation section to carry out an interpolation on the basis of integration values output by the integration section in order to generate integration values corresponding to a predetermined number of sampling positions set in advance during at least one period of flickers appearing on a screen under a fluorescent lamp; a normalization section to normalize an integration value output by the interpolation section or to normalize a difference value between integration values output by the interpolation section as integration values for adjacent fields or frames, respectively; a frequency analysis section to extract a spectrum of normalized integration value or difference values output by the normalization section; and a flicker inference section to infer a flicker component from the spectrum extracted by the frequency analysis section.

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