Internet TV Set-top Boxes allow viewers to watch streaming media from the Internet on standard television sets. Internet TV STBs (often called I-STBs) may be dedicated Internet TV STBs or they may provide functions that are added to other media processing devices such as gaming consoles, Blu-ray players or even TV sets. (Note: Internet TV is also known as Internet Video or Over-the-Top (OTT) service.)
I-STBs may be designed or programmed to work with Internet TV Broadcasters or they may allow the users to directly connect to the media source (such as an Internet streaming channel directly from a TV Broadcaster).
I-STBs can have a mix of network connection options, output connection types, operating systems, media processing types, and protocols.
The choice of specific I-STBs can determine which service can be provided to the viewer and how efficient the system can operate.
One of the main things to keep in mind is that I-STBs need to be as inexpensive as possible. Back when algorithms for encoding and decoding video were being looked at, it was decided that the algorithm needed to be asymmetrical meaning that the encoders should be more complex and costly because there are much fewer of them and decoders needed to be simple and inexpensive as there are a lot of them. So MPEG, or more precisely the Discrete Cosine Transform (DCT), was chosen for these reasons. Other algorithms such as Wavelets (JPEG 2000) are more symmetrical and are not a good choice for consumer video applications.
I-STBs may be designed or programmed to work with Internet TV Broadcasters or they may allow the users to directly connect to the media source (such as an Internet streaming channel directly from a TV Broadcaster).
I-STBs can have a mix of network connection options, output connection types, operating systems, media processing types, and protocols.
The choice of specific I-STBs can determine which service can be provided to the viewer and how efficient the system can operate.
One of the main things to keep in mind is that I-STBs need to be as inexpensive as possible. Back when algorithms for encoding and decoding video were being looked at, it was decided that the algorithm needed to be asymmetrical meaning that the encoders should be more complex and costly because there are much fewer of them and decoders needed to be simple and inexpensive as there are a lot of them. So MPEG, or more precisely the Discrete Cosine Transform (DCT), was chosen for these reasons. Other algorithms such as Wavelets (JPEG 2000) are more symmetrical and are not a good choice for consumer video applications.
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