upconvert

(redirected from Upconverting)

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)
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References in periodicals archive ?
In addition to playback of up to 40kHz, the speaker also offers a sound upconverting feature that boosts the quality of standard audio files to 24bit/192Hz to enhance subtle details and nuances of each track.
Liu, Biosensing platform based on fluorescence resonance energy transfer from upconverting nanocrystals to graphene oxide, Angew.
Since only real and positive signals can be transmitted in the VLC system, the upsampling and upconverting operations are applied, where real-value signals are obtained by the complex-to-real-value conversion [17].
The use of iron oxide nanoparticles for [T.sub.1]-weighted and/or [T.sub.2]-weighted MRI, the design of radioisotope chelator-free particles for PET, and new developments in fluorescent nanoparticles (carbon dots and upconverting nanoparticles) are important milestones in the field.
Yan et al., "Red-emitting upconverting nanoparticles for photodynamic therapy in cancer cells under near-infrared excitation," Small, vol.
R837 and photosensitizer chlorin e6 (Ce6) dual-loaded upconverting nanoparticles were also developed for combination with the anti-CTLA-4 antibody [26].
A few systems will be discussed including rubbery and glassy polymer blends, and copolymers with suitable chromophore pairs, upconverting (nano)particles, gels, and nanostructured materials.
Upconverting Nanomaterials: Perspectives, Synthesis, and Applications
The University of South Dakota, a first-time speaker at ODS, presents their work on covert upconverting inks, whilst a different approach to authentication is revealed in Ostwestfalen-Lippe University's paper on data collection.
To combine the advantages of the less detriment of NIR light to body and enhanced sensitivity of thermo- and light-responsive polymers to light, we fabricated upconverting hybrid nanoparticles by self-assembling PEO-fr-P(NIPAMco-NBA) with the presence of UCNPs in water.
Of course, the unique fluorescent properties facilitate a promising candidate of this [La.sub.2][O.sub.3] based material in various color display fields on the basis of the high upconverting efficiency and high resistance against laser radiation damage.