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Digital Imaging in Radiography: The Basics
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About the Author
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Introduction
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Historical Perspective and Fundamentals
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What is a Digital Image?
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Digital Image Matrix
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Spatial Sampling and Pixel Quantization
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Spatial Sampling
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Sampling Pitch
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Matrix Size and Sampling Pitch
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Sampling Frequency
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Nyquist or Sampling Theorem
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Analog-Digital Conversion and Numeric Value Assignments
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Optimal Bit Depth
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Digital Radiographic Imaging versus Screen/Film Radiographic Imaging
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Dynamic Range
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Imaging Archiving and Management
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Digital Image Receptors: Cassettes and Cassetteless
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Cassetteless Digital Radiography Receptors
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Direct Conversion Systems
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Indirect Conversion DR Receptors
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Indirect Conversion, continued
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Advantages of Direct Radiography
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Cassette-based Digital Radiography Receptors
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Composition and Function of Layers
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CR Image Processing
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Summary
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Resources
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