Definition: pixel: Contraction of "picture element"; the area on the ground represented by each digital number in a digitized image; an individual element in a detector.
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pixel One of many tiny picture elements, organized into an array, making up a digital image.
Planck curve see blackbody curve
planet One of nine major bodies that orbit the Sun, visible to us by reflected sunlight.
Pixel aspect ratio is a term used in computer graphics and digital video. It describes a mathematical ratio between width and height of a pixel....
tire code
Tire code ...
pixel
short for 'picture element,' the individual light detectors on a CCD chip
planet ...
Pixel
Derived from "picture element." The smallest individual element of an array detector. Note that the size of the detector pixel does not necessarily equate with the resolution of the system (undersampling).
Pixons ...
Pixel - A "Picture Element". In a digital camera, it refers to an individual photosite on the CCD or CMOS sensor. In the image it refers to the smallest building block out of which the image is made of.
Pixel: A term used in digital image processing to describe a unique, single picture element (or, a single spot on an image) which has a unique color (or brightness) value.
Pixel - A "picture element," consisting of an individual detector in an array of detectors used to capture an image
Planet - One of the nine major bodies in orbit around the Sun ...
Pixel
A light-sensitive picture element on a charge-coupled device (CCD) or some other kind of digital camera. A pixel is a tiny cell that, placed together with other pixels, resembles the mesh on a screen door.
Pixel is an abbreviation for the term picture element. A pixel is the smallest picture element of a digital image. While individual pixels are too small to notice, together they make up an entire picture.
Source: NASA Jet Propulsion Laboratory ...
Subpixel renderingSubplateSubplate Records
Subplate zone (brain)SubplotSubpoena
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The pixel scale of these images ranges from 2.2 to 2.0 kilometers per pixel (1.4 to 1.2 miles per pixel). The smallest features that can be discerned in the clouds are roughly 10 kilometers ( 6 miles) across.
Cell Size (pixel)
5.6 m m
5.6 m m
Figure 10-10. Toucan Pro II Web Cam (PVC 840K/20 - ICX098BQ chip) ...
non-linear scaling - two pixel values are arbitrarily chosen: low for black and high for white and pixels with values in between have their values reassigned according to mathematical formula, e.g. logarithmic scaling or gamma-scaling. ...
Each has a 10242 pixel CCD detector, fitted with spectral filters that rotate on a wheel to view wavelength bands from 0.2 microns to 1.1 microns.
pixels (NASA Thesaurus) Shortened term for 'picture elements.' They are image resolution elements in vidicon-type detectors. Used for picture elements.
If we had a single-pixel CCD then it could measure flux from a source, much like a photomultiplier tube. CCDs however have a large number of pixels in a two-dimensional array.
pixel Neologism from picture element, thhe smallest homogenous area from a recorded image. The luminence of each pixel is the mean of the luminence of each part of the points inside the area of the target pixel.
5 degrees with an angular resolution of 60 microradians/pixel. The NAC's field-of-view is 0.35 degrees with an angular resolution of 6.0 microradians/pixel. The imaging plane of each will contain a 1024x1024 element CCD array.
These - such as MACHO, OGLE, EROS, AGAPE, MOA - use stars in the LMC or galactic bulge (for AGAPE, in M31 via what's known as pixel lensing) as background sources and watch for the characteristic shape of a lensing event as foreground point sources ...
Designed by Canadian scientists Yvan Dutil and Stepháne Dumas, it consisted of 263,906 bits of information (encoded into the signal by shifting the transmission frequency up or down to represent a black or white pixel) that builds up into 127 x 127 ...
x_shift - image cut horizontal shift in pixels relative to projection center
y_shift - image cut vertical shift in pixels relative to projection center
width and height - dimensions of output image ...
Charge-Coupled Device (a) A small photoelectronic imaging device (typically 1.5 cm square) made from a crystal of semiconductor silicon in which numerous (at least 250,000) individual light-sensitive picture elements (pixels) have been ...
A CCD (Figure 5.16) consists of a wafer of silicon divided into a two-dimensional array of many tiny picture elements, known as pixels. When light strikes a pixel, an electric charge builds up on the device.
All three of these image files are full color and have a resolution of 300 by 300 pixels. In uncompressed BMP format, they all are 263 kilobytes (KB) in size. In compressed PNG format the first file, with the simple pattern, is rendered down to 1.
The GONG data presently consists of 1024 by 1024 pixel intensity images at three different spectral positions within the line with two different polarizations. These three images are processed to produce three primary data images .
Under negative, when two pixels with the same color are aligned, the result is black.
5. Set the alignment to one point.
6.
In this device, only one pixel shift has to occur to transfer from image area to storage area; thus, shutter times can be less than a microsecond and smear is essentially eliminated.
Pixel values from the 1-km leaf area index map were then compared to pixel values from a MODIS leaf area index map. A strong correlation exists between our in-situ data and MODIS leaf area index values.
FOCUS: Ask students to brainstorm examples of where they find images made up of pixels.
The individual detectors in an array are often called pixels - short for picture elements. These pixel arrays convert energy from infrared radiation into electrical signals, which are then converted into "bits" of digital data.
I reverse engineer the map transform, so I can translate latitudes and longitudes to precise pixel locations. I do a bit pattern recognition on the map overlays and moving cloud fronts to pick the right pixel.
The WF/PC is equipped with a CCD detector that can record the light falling onto 256 million individual picture elements (pixels, as scientists call them).
Because the effects of seeing produce random displacements of light around the actual location of the star image, the cumulative effect is typically a circular blurring of the light across pixels, with most of the light falling in the center [1].
Each square pixel (picture element) is more than 100 miles across. At this resolution, Hubble discerns roughly 12 major "regions" where the surface is either bright or dark.
Then, what is four megapixel image?
As you might have figured out, a 4megapixel CCD chip has about 4million pixels. For the sake of simplicity, let us assume that there are exactly 4,000,000 sensors on our chip.
5 m/pixel resolution camera. Launched 9/25/92 on a Titan III/TOS booster. Contact was lost with MO on 8/21/93 while it was preparing for entry into Mars orbit. The spacecraft has been written off (postmortem analysis).
They consist of a silicon chip which is sensitive to light, the chip being divided up into picture elements (pixels).
Most of the photographs have been reduced down to a height of 768 pixels for the presentation I gave to my astronomy club. That means two things: 1) some of the pictures will take a while to download over dial-up (the largest is 636 kB in size); ...
Angular resolution is the number sterradians represented by one pixel. Line pair resolution is twice the resolution. Resolution is angular resolution times the camera-object distance.
charge-coupled device (CCD)
A computer chip with thousands of light-gathering pixels used in place of a photographic plate. CCD's have greatly enhanced the capabilities of both amateur and professional telescopes.
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Eventually, the field of view for CCDs had increased to 1024 by 1024 pixels, which allowed searches to be conducted far more rapidly.
Compound eyes are found among the arthropods (insects and kin), and are composed of many simple facets which give a pixelated image (not multiple images as is often believed).
3 metres/pixel, 10 times greater than in the previous image of the same feature taken by the Viking missions in the 1970s. The full picture covers an area of 2.7 miles (4.4km) wide and 25.7 miles (41.5km) long.
(Left) A representation of the CCD chips to be used in the Large Synoptic Survey Telescope project. Each of the 200 chips has the capacity to take a 16 mega-pixel image. Image courtesy LSST Corporation ...
 See also: Light, Time, Earth, Distance, Resolution
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