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.
Poynton, Staff Engineer, said that without square pixels, HDTV will not be embraced by the computer graphics community, which has square pixels now.
2-micron square pixels in an extremely compact housing.
Accurately creating imagery for display on screen has always been a challenge, because non-square pixels, typical of video, cause computer-generated graphics -- which use square pixels -- to appear distorted.
A high-speed, high-resolution version incorporates a 6k or 8k sensor with 7 micron square pixels, and four outputs delivering up to 160 MHz.
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.
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.
Instead of flat square pixels, voxels also have depth.