pixel

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pixel

 [pik´sel]
a picture element; a CT scan or PET scan is composed of an array of squares (pixels), each of which is colored a uniform shade of gray or another color. The corresponding region in the tissue slice that is imaged is called a voxel (volume element).

pix·el

(pik'sĕl),
A contraction for picture element, a two-dimensional representation of a volume element (voxel) in the display of the CT or MR image, usually 512 × 512 or 256 × 256 pixels, respectively.

pixel

A portmanteau for picture element, the smallest discrete two-dimensional unit of a digital image.

pix·el

(piks'ĕl)
A contraction for picture element, a two-dimensional representation of a volume element (voxel) in the display of the CT or MR image, usually 512 by 512 or 256 by 256 pixels respectively.

pix·el

(piks'ĕl)
Contraction for picture element, two-dimensional representation of a volume element (voxel) in the display of the computed tomographic or magnetic resonance image, usually 512 × 512 or 256 × 256 pixels, respectively.

pixel

a picture element such as a dot on a video display screen. The greater the concentration of pixels the clearer the image.
A CT scan or PET scan is composed of an array of squares (pixels), each of which is colored a uniform shade of gray or another color. The corresponding region in the tissue slice that is imaged is called a voxel (volume element). See also computed tomography.
References in periodicals archive ?
The square pixel image is of dimension 71 x 94 yielding a total, for comparison, of 6674 pixels.
The scanner I used divided the scanned image into square pixels.
This use of square pixels that I started resulted from my lack of awareness of a method used 1500 years previously by the mosaic artists in Ravenna when they chose tesserae carefully by shape and color to best represent their mosaic images.
Since the first digital image was of a newborn infant in 1957, I include here two color images of the same 53 year old today using both conventional square pixels in Fig.
Offering wide XGA (1365 x 768) native resolution with perfectly square pixels, the 61MP1 allows for the display of a superior image with up to 50 percent more information on screen than a 50-inch monitor.
The CAMELIA M1 8M (black and white) and CAMELIA C1 8M (color), based on a large format (close to 35mm film size) progressive scan CCD featuring 2300 (H) x 3500 (V) or 8 million square pixels, has been improved on electro-optical performance, in particular by reducing power consumption, using a new front panel and an internal heat sink.
Additional features include OLE automation for external software control, support for databases on removable media, database locking, support for rectangular or square pixels in import/export functions, and support for the optional analog I/O card.
3 megapixel (effective), single-plate CMOS sensor with 3072 x 2048 square pixels, 12-bit analog-to-digital conversion and an on-chip RGB primary color filter array.
We are particularly excited about the new range of frame grabbers from Imagenation providing square pixels for the CCIR video standard.
Instead of flat square pixels, voxels also have depth.