1. Intro to Imaging & Digital Image Processing

Transmission

Transmission

________: The imaging mechanism by which information comes from what travels through the body (e.g.

Tomographic

________: Imaging that shows cross- sectional representation (e.g.

single planar

Projection: Imaging that shoes a(n) ________ representation (e.g.

image

A(n) ________ is a 2D representation of a physical quantity as rendered by a(n) ________ modality.

Modality

________: The difference between different bioimaging methods and machines (ex: CT and MRI are different)

finite thickness

An image represents a "________ "plane within a volume of interest.

Pixel values

________ depend on the storage type.

Digital images

________ are digital files saved on a computer.

Resolution

________: Number of pixels per square inch.

Grayscale images

________ are NOT called black and white.

Color images

________: each pixel can have 4 values.

Four necessary components of a modality

source (illumination), camera (detector), digitizer (frame grabber), imaging processing unit

Anatomical

Imaging that represents structure/composition of objects (e.g

Functional

Imaging that represents function/physiology of an organ (e.g

Projection

Imaging that shoes a single planar representation (e.g

Tomographic

Imaging that shows cross-sectional representation (e.g

Transmission

The imaging mechanism by which information comes from what travels through the body (e.g

Resolution

Number of pixels per square inch

8-Bit

Greyscale images with values from 0 to 2^8 minus 1

16-Bit

Greyscale images with values from 0 to 2^16 minus 1

Color images

Each pixel can have 4 values in these images