upconvert

(redirected from upconversion)

upconvert

To convert one set of values to a higher set of values. For example, HDTV sets upconvert broadcast TV (480i) and DVD content (480i or 480p) to the highest format the set supports (720p, 1080i or 1080p). A/V receivers also provide upconversion.

Also called "upscaling." In a modern home theater, the DVD player, A/V receiver and HDTV provide upconversion capabilities. If the units are all of similar quality, it may make little difference which one performs the upconversion. For example, if the HDTV does the best job, the DVD and receiver upconversion can be turned off. Contrast with downconvert.


From 480i to 720p
To convert a 480i signal to 720p or 1080p, the first step is to deinterlace the 480 lines from 480i to 480p and then upconvert to the higher resolution. See deinterlace.







Upconversion Is Critical
Converting a lower resolution to a higher one is more critical than the other way around, and the quality of algorithms differs widely. These examples are images upscaled using a low-quality circuit (top) and the higher-quality circuit (bottom) in Anchor Bay's VP50Pro video processor. (Image courtesy of Anchor Bay Technologies, Inc., www.anchorbaytech.com)
References in periodicals archive ?
It can be used in either frequency upconversion or downconversion applications, with conversion gain of 2 dB.
3] For example, Yb/Er-codoped upconversion luminescence nanoparticles have been used to carry out optical imaging in vivo and controllable drug release under a near-infrared illumination.
Even so the omnipresence of oxygen turned out to seriously interfere with the upconversion efficiency.
Yoan Simon, of USM, spoke on "Adding a Bit of Color and Energy via Light Upconversion.
The sixth annual Sidney Lauren Memorial Lecture was presented by Yoan Simon of the University of Southern Mississippi, who presented "Adding a Bit of Color and Energy via Light Upconversion.
Each stream then passes through digital interpolation and upconversion stages before delivery to the D/A at sampling rates up to 2.
The Italian authors discuss branching, capacity improvement, modulations and coding, countermeasures against imperfections in TX and RX chains, low noise amplifiers, local oscillators, analog-to-digital converters, power amplifiers, upconversion, linearization techniques, and parabolic antennas.
They also incorporate upconversion from L-band for 1-2 GHz input operation and SNMP-based Ethernet monitor and control interfaces.
Direct support for digital upconversion in the wideband, modular Agilent M8190A arbitrary waveform generator, as well as support for Agilent's M9391A PXI vector signal analyzer and M9381A PXI vector signal generator though Command Expert 1.
Cards in the new 30 Series IQ format converter range are ideal for handling a wide variety of common applications such as upconversion for re-purposing of SD content on HD channels, or down-conversion to maintain SD output feeds," said Steve Cole, product manager at Snell.
var5] leading to AM-PM noise [11] upconversion via the varactors [C.
This reduces the phase noise due to the AM-PM upconversion [13].