17. Digital camera characterization and calibration and basic - 2011

17. Digital camera characterization and calibration and basic - 2011

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EE 638: Principles of Digital Color Imaging Systems Lecture 15: Image Capture
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Image Capture Devices Image Capture Devices: Scanners Camera Camera: Sensor array technologies CCD (Charge Coupled Device) CID (Charge Injection Device) CMOS (Complementary Metal Oxide Semiconductor) Sensor Array CCD from a HP digital camera
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CCD Phase I Exposure CMOS & CID Line Registers y address x address 1 pixel Detector All detector has a certain identical sensitivity
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To get three channels use transmissive filters placed on top of sensor array. Channel Sensitivities: R G B R G B G B R G B R Demosaicing Interpolation Inversing Problem
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Camera (single chip) Single chip CCD CMOS CID Sensor response Coat cells with three different filter materials R G B R G B G B R G B R Demosaic to get full resolution R, G, B Corresponds to trichromatic sensor
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Camera (cont.) Three chips Foveon sensor R sensor G sensor B sensor Bean-splitter More expensive,
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This note was uploaded on 02/19/2012 for the course ECE 638 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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17. Digital camera characterization and calibration and basic - 2011

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