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- Number of terms: 20560
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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
Compression that uses redundancy between successive pictures; also known as Temporal Coding.
Industry:Software
A lens used for videography when the camera-to-object distance is less than two feet. The macro lens is usually installed within the zoom lens of the video camera or camcorder.
Industry:Software
On the 4100 series, an RGB chroma key or a luminance key, as distinct from a composite (encoded) chroma key.
Industry:Software
A measure of resolution often used in film and print media. In television, lines are used instead, creating confusion when comparing film and video.
Industry:Software
This is caused by quantizing errors between adjacent pixels, as a result of compression. As the scene content varies, quantizing step sizes change, and the quantizing errors produced manifest themselves as shimmering black dots, which look like “mosquitoes” and that show at random around objects within a scene.
Industry:Software
A) The four 8 by 8 blocks of luminance data and the two (for 4:2:0 chroma format), four (for 4:2:2 chroma format) or eight (for 4:4:4 chroma format) corresponding 8 by 8 blocks of chrominance data coming from a 16 by 16 section of the luminance component of the picture.
Macroblock is sometimes used to refer to the pel data and sometimes to the coded representation of the pel values and other data elements defined in the macroblock header. The usage should be clear from the context.
b) The screen area represented by several luminance and colordifference DCT blocks that are all steered by one motion vector. c) The entity used for motion estimation, consisting of four blocks of luminance components and a number of corresponding chrominance components depending on the video format.
Industry:Software
The specification of the direction a pattern moves as the fader is pulled. A normal pattern starts small at the centre and grows to the outside while a reverse pattern starts from the edge of the screen and shrinks. Normal/Reverse specifies that the pattern will grow as the fader is pulled down, and shrink as it is pushed up. This definition loses some meaning for wipes that do not have a size per-se such as a vertical bar, however, this feature still will select the direction of pattern movement.
Industry:Software
In optical measurements and specifications, resolution is specified in terms of line-pairs per unit distance or unit angle, a line pair consisting of one “black” plus one “white” line. Thus one line pair corresponds to two television lines.
Industry:Software
The bit that has the most value in a binary number or data byte. In written form, this would be the bit on the left. For example: Binary 1110 = Decimal 14 In this example, the leftmost binary digit, 1, is the most significant bit, here representing 8. If the MSB in this example were corrupt, the decimal would not be 14 but 6.
Industry:Software
An analogue protection scheme developed by Macrovision for the prevention of analogue copying. It is widely used in VHS and has now been applied to DVD.
Industry:Software
