1. Intro to Imaging & Digital Image Processing

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21 Terms

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Transmission
________: The imaging mechanism by which information comes from what travels through the body (e.g.
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Tomographic
________: Imaging that shows cross- sectional representation (e.g.
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single planar
Projection: Imaging that shoes a(n) ________ representation (e.g.
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image
A(n) ________ is a 2D representation of a physical quantity as rendered by a(n) ________ modality.
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Modality
________: The difference between different bioimaging methods and machines (ex: CT and MRI are different)
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finite thickness
An image represents a "________ "plane within a volume of interest.
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Pixel values
________ depend on the storage type.
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Digital images
________ are digital files saved on a computer.
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Resolution
________: Number of pixels per square inch.
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Grayscale images
________ are NOT called black and white.
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Color images
________: each pixel can have 4 values.
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Four necessary components of a modality
source (illumination), camera (detector), digitizer (frame grabber), imaging processing unit
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Anatomical
Imaging that represents structure/composition of objects (e.g
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Functional
Imaging that represents function/physiology of an organ (e.g
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Projection
Imaging that shoes a single planar representation (e.g
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Tomographic
Imaging that shows cross-sectional representation (e.g
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Transmission
The imaging mechanism by which information comes from what travels through the body (e.g
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Resolution
Number of pixels per square inch
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8-Bit
Greyscale images with values from 0 to 2^8 minus 1
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16-Bit
Greyscale images with values from 0 to 2^16 minus 1
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Color images
Each pixel can have 4 values in these images