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Cao et al., 2015 - Google Patents

Strip non-uniformity correction in uncooled long-wave infrared focal plane array based on noise source characterization

Cao et al., 2015

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Document ID
9418688733979190091
Author
Cao Y
Li Y
Publication year
Publication venue
Optics Communications

External Links

Snippet

In uncooled long-wave infrared (LWIR) imaging systems, nonlinear behaviors of infrared detectors and lack of column cross-calibration generate obvious strip non-uniformity in the captured infrared images. Human observers are particularly sensitive to the resulting high …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

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    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/335—Transforming light or analogous information into electric information using solid-state image sensors [SSIS]
    • H04N5/357—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N5/365—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
    • H04N5/3651—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection and correction
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    • G06T2207/20172—Image enhancement details
    • G06T2207/20182—Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06T2207/00—Indexing scheme for image analysis or image enhancement
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    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
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    • G06T2207/20224—Image subtraction
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    • H04N5/33—Transforming infra-red radiation
    • G—PHYSICS
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    • G06T2207/20048—Transform domain processing
    • G06T2207/20056—Discrete and fast Fourier transform, [DFT, FFT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225—Television cameras; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
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