| / English Dictionary |
PIXEL
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
(computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot)
Example:
the greater the number of pixels per inch the greater the resolution
Synonyms:
Classified under:
Nouns denoting man-made objects
Hypernyms ("pixel" is a kind of...):
component; constituent; element (an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system)
Domain category:
computer science; computing (the branch of engineering science that studies (with the aid of computers) computable processes and structures)
Holonyms ("pixel" is a part of...):
raster (the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitor)
Context examples:
Image scale at Uranus is approximately 16,000 miles (25,700 kilometers) per pixel.
(Cassini spies the ice-giant planet Uranus, NASA)
Image scale is 2.4 miles (3.9 kilometers) per pixel.
(Regarding Rhea, NASA)
The horizontal distance between the centers of adjacent pixels in an image.
(Horizontal Pixel Spacing, NCI Thesaurus)
A measurement of the number of data fields, pixels or data points assigned to each linear dimension in a digital image.
(Image Acquisition Matrix Size, NCI Thesaurus)
For tomographic images, the horizontal physical distance in the patient between the center of each pixel.
(Horizontal Pixel Spacing, NCI Thesaurus/DICOM)
And unlike other bioimaging techniques, the information obtained by the nanowire spectrometer contains a detailed analysis of the chemical fingerprint of each pixel.
(Nanowires replace Newton’s famous glass prism, University of Cambridge)
A table used for interpreting pixels (voxels) to find the correspondence between image intensity values and displayed hues for the particular color scale employed.
(Color Lookup Table, NCI Thesaurus)
A high-resolution strip taken at approximately 760 feet (232 meters) per pixel is overlain on a broader, low-resolution image taken at 2,910 feet (889 meters) per pixel.
(Pluto’s ‘Halo’ Craters, NASA)
Composed of more than 1,000 images taken during the 2019 Thanksgiving holiday and carefully assembled over the ensuing months, the composite contains 1.8 billion pixels of Martian landscape.
(Curiosity Mars Rover Snaps Its Highest-Resolution Panorama Yet, NASA)
The smearing out of a scanned object's true activity concentration that should appear at each pixel (voxel) into a wider displayed pattern because of the lack of perfect scanner resolution for small objects (i.e. having a dimension near or less than the scanner's full width at half maximum of its point spread function).
(Partial Volume Effect, NCI Thesaurus)
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