- Computer Vision
-
The analysis of image content--the conversion of pictures into descriptions.
- Computer Graphics
-
The synthesis of artificial images--the creation of pictures from descriptions.
- Image Processing
-
The enhancement or other manipulation of an image--the result of which is
usually another image.
- Image
-
A digitally sampled picture.
- Scene
-
The ``reality''from which an image was taken.
- Resolution
-
The amount of detail that can be discerned in an image.
The usual measurement is in separable line pairs per millimeter.
- MRI
-
Magnetic Resonance Imaging.
- CT
-
Computed Tomography
- CAT
-
Computed Axial Tomography
- SPECT
-
Single-Photon Emission Computed Tomography
- PET
-
Positron Emission Tomography
- Transfer Function
-
The Fourier transform of an imaging system
- Modulation Transfer Function
-
The magnitude part of a Transfer Function
- Phase Transfer Function
-
The phase part of the Transfer Function
- Scale Space
-
A an image (or function of an image) as measured at multiple scales.
- Laplacian
-
Second spatial derivative.
- Nuclear Medical Imaging
-
An emission modality in which a radioactive pharmaceutical is
introduced into the patient.
Imaging occurs by measuring the low-level radiation given off by
this mixture.
Examples of Nuclear Medical Imaging include
PET and
SPECT.
- Binary Image
- A strictly black and white image (0s and 1s).
One bit of information per pixel.
- Greyscale Image
- An image consisting of scalar values
representing intensity. These are usually stored as
one byte per pixel (256 levels) or
two bytes per pixel (65,536 levels).
- Range Image
- An image whose values represent distance
from the imaging device.
- Pixel
- A single "picture element"--the smallest piece of an image.
- Sampling
- The process of recording the value of some function
only at discrete points in the domain.