keystone distortion

keystone distortion

[′kē‚stōn di′stȯr·shən]
(communications)
Distortion produced by scanning in a rectilinear manner, with constant-amplitude sawtooth waves, a plane target area which is not normal to the average direction of the beam.
References in periodicals archive ?
All three models offer auto set-up, which identifies and selects the input source, corrects keystone distortion, sharpens focus, and adjusts for wall color.
Auto Set-Up, which instantly identifies and selects the input source, corrects keystone distortion, sharpens focus, and adjusts for wall color.
Power "H & V" optical lens shift allows the user to adjust the lens horizontally and vertically, minimizing keystone distortion.
Each channel has independent adjustments to compensate for pincushion/barrel distortion, keystone distortion, and rotational misalignment.
The accelerometer measures the angle of the projector relative to horizontal and this data is used to automatically correct for keystone distortion.
Digital Keystone Distortion Compensation Angle: +/- 20 degrees Noise: 34dB (at low fan speed) Color system: NTSC/PAL/SECAM/NTSC 4.
4m) Digital Keystone Distortion Compensation Angle: +/- 20 degrees (vertical), +/- 10 degrees (horizontal) Noise: 36 dB (at low fan speed) Color system: NTSC/PAL/SECAM/NTSC 4.
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