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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.
A mathematical constant that, for an ellipse, is the ratio between the major and minor axis length.
Industry:Entertainment
A format that contains all data used to design and assemble extremely large files in a small, efficient mathematical structure.
Industry:Entertainment
A) A wave which has been reflected at one or more points in the transmission medium, with sufficient magnitude and time difference to be perceived in some manner as a wave distinct from that of the main or primary transmission. Echoes may be either leading or lagging the primary wave and appear in the picture monitor as reflections or “ghosts.” b) Action of sending a character input from a keyboard to the printer or display.
Industry:Entertainment
The minimum rate of presentation of successive images of a motion picture that allows motion to seem smooth, rather than jerky. The fusion frequency is almost always lower than the flicker frequency.
As it applies to the rate at which images are presented, rather than the rate at which they were shot, material that appears to be at or above the fusion frequency when viewed at normal speed may be below it when viewed in slow motion. Techniques to smooth motion presented at a rate below the fusion frequency have been developed for such purposes as computer-assisted animation; these are sometimes called in-betweening techniques. See also Judder.
Industry:Entertainment
A metal plate used to create reverberation by inducing waves in it by bending the metal.
Industry:Entertainment
A future reference picture is a reference picture that occurs at a later time than the current picture in display order.
Industry:Entertainment
An HDTV film-complement format introduced by Sony in 1998. 1920 x 1080, progressive scan, 24 fps, 4:4:4 resolution. Using a 1/2-inch tape, the small cassette (camcorder) will hold 50 minutes while the large cassette will hold 156 minutes. E-Cinema’s camcorder will use three 2/3-inch FIT CCDs and is equivalent to a film sensitivity of ISO 500.
The format will compress the electronic signal somewhere in the range of 7:1. The format is based on the Sony HDCAM video format.
Industry:Entertainment
A) An edge is the straight line that connects two points.
b) Synonym for key border. Used by our competitors but not preferred by Ampex. c) A boundary in an image. The apparent sharpness of edges can be increased without increasing resolution. See also Sharpness.
Industry:Entertainment
Distortion concentrated at the edge of objects, characterised by temporally varying sharpness or spatially varying noise.
Industry:Entertainment
Creating hard, crisp, high-contrast edges beyond the correction of the geometric problem compensated by aperture correction, frequently creates the subjective impression of increase image detail.
Transversal delay lines and second-directive types of correction increase the gain at higher frequencies while introducing rather symmetrical “undershoot followed by overshoot” at transitions. In fact, and contrary to many causal observations, image resolution is thereby decreased and fine detail becomes obscured. Creating a balance between the advantages and disadvantages is a subjective evaluation and demands an artistic decision.
Industry:Entertainment
