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- Number of terms: 20560
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- Company Profile:
Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
a) Defines the amount of incident light that passes through a surface. Both ambient and diffuse light falling on a transparent polygon are transmitted through the polygon, but highlights are not. In paint systems, a similar property called “opacity” determines how opaque the paint loaded on the artist’s brush really is. b) Full-color mode makes it possible for a polygon to be translucent by assigning a transparency between 0% and 100% (0 = opaque, 100 = fully transparent). To implement transparency, we assume that a semi-transparent polygon covers only a fraction of each pixel which it covers. The final pixel’s value is a blend of the background and the polygon. Again, color maps have too few colors to do this. c) A feature in Indeo Video interactive codec in which software emulates chroma keying, allowing foreground video objects to be composited dynamically over a different background, a bitmap or possibly even another video. See Chroma Key.
Industry:Software
A character or word that the system displays that indicates the system is ready to accept commands.
Industry:Software
A way of winding tape such that the end of the selection is at the outside of the reel.
Industry:Software
The electric signal that represents complete color picture information and all sync signals. Includes blanking and the deflection sync signals to which the color sync signal is added in the proper time relationship.
Industry:Software
A cathode-ray tube used to produce an image by variation of the intensity of a scanning beam.
Industry:Software
Classically, two point objects are considered resolved when the centers of their diffraction disks in the image are separated by at least one disk diameter. This leads to a theoretical minimum angular separation for objects at a distance: a = (1.22)(lambda)/D. Resolving power of a lens increases with increasing optical aperture. Systems vary enormously in the closeness with which their actual resolving power approaches this diffraction-controlled ultimate limit.
Industry:Software
Pixels generated in a television system having the same horizontal and vertical resolution. There is some evidence that a large mismatch between horizontal and vertical resolution prevents the higher resolution from being fully perceived by the human visual system. NTSC was created with square pixels with a resolution of approximately 330 by 330 lines.
Industry:Software
In the transparency technique first-frame analysis, the first frame of the video file. It contains no video data, but merely supplies the color or range of colors to be rendered as transparent. See First-Frame Analysis, Transparency.
Industry:Software
A type of key border effect. An outline key with a character generator appears as if the letters have been traced; the background video is visible all around the letter as well as inside it.
Industry:Software
