Noise processing, e.g. detecting, correcting, reducing or removing noise

Child Classifications

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• H04N 25/61 the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4" since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/616 involving a correlated sampling function, e.g. correlated double sampling [CDS] or triple sampling since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/617 for reducing electromagnetic interference, e.g. clocking noise since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/618 for random or high-frequency noise since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/62 Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/63 applied to dark current since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/65 applied to reset noise, e.g. KTC noise related to CMOS structures by techniques other than CDS since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/67 applied to fixed-pattern noise, e.g. non-uniformity of response since 2023 IPC+CPC Available in IPC and CPC
• H04N 25/68 applied to defects since 2023 IPC+CPC Available in IPC and CPC