Digital video camera with high-speed mode
作者： Hirokazu Ide , Tomio Ishigamii , Akio Kobayashi , Hidefumi Okada , Yasuhiko Naito
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摘要: A digital video camera includes an addition circuit in which offset set by a CPU is added to output from A/D converter. clamp level calculation calculates on the basis of average eight pixels included each line within back end OB (optical black) detection area normal mode, or two front quadruplication mode. first subtraction subtracts so as circuit. An clipped at zero-level zero-clipping circuit, and applied second through low-pass filter, whereby same can be subtracted
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