Application of RVLC and VLEC
Content
What is RVLC
Need of RVLC
Comparison with VLC
Implementation
Application
Future Vision
References
What is RVLC ?
RVLC (reversible variable length code) are the codes which satisfy both prefix as well as suffix condition.
So they can be decoded in both direction i.e.. Forward as well as backward
Comparison of RVLC and VLC
VLC Code (i.e.. Huffman code) widely used for compression. Since these code satisfy only Prefix condition only so can be decoded only in one direction
On the other hand RVLC are bidirectional so whenever an error occur then we can decode them in reverse direction and retreive the information.
Need of RVLC
Huffman codes are widely used these days for video/Image compression but on passing them erroneous environment result in a error but since in huffman there is error correction capability it result in transmission of error.
Thus we introduce RVLC to reduce this difficulty
Different RVLC generation Algo.
Takishima Algorithm
Tsai Algorithm
Implementation
Firstly JPEG using VLC
JPEG with reducing AC coefficients.
JPEG 2000 using VLC and EZW.
JPEG using RVLC