Noun
(computing) Abbreviation of data collection tree. It is a tree topology in mobile wireless sensor networks (MWSNs) to collect and aggregate the information from the cluster head, and then forward that aggregated data to the sink (or) base station.
(automotive) Initialism of dual clutch transmission.
(mathematics) Initialism of discrete cosine transform.
(television) Abbreviation of digital component tape.
(military) Abbreviation of division(al) combat team.
Source: en.wiktionary.orgAdditionally, the frequency conversion performed by applying the DCT provides a statistical decorrelation function to efficiently concentrate the signal into fewer high-amplitude values prior to applying quantization (see below). Source: Internet
A DCT is similar to a Fourier transform in the sense that it produces a kind of spatial frequency spectrum. Source: Internet
An example quantization matrix: : Quantization is performed by taking each of the 64 frequency values of the DCT block, dividing them by the frame-level quantizer, then dividing them by their corresponding values in the quantization matrix. Source: Internet
DCT Each 8x8 block is encoded by first applying a forward discrete cosine transform (FDCT) and then a quantization process. Source: Internet
DCT encoding and quantization (see below) also isn't nearly as effective when there is large/sharp picture contrast in a block. Source: Internet
Elantra N Line delivers a spirited driving experience, powered by a 1.6-liter GDI turbocharged engine with six-speed manual or seven-speed Double Clutch Transmission (DCT) that produces up to 201 horsepower and 195 lb-ft torque. Source: Internet