Title :
Bidirectionally decodable streams of prefix code-words
Author_Institution :
Telecommun. Lab., Erlangen-Nurnberg Univ., Germany
Abstract :
A new general scheme is introduced that allows bidirectional decoding of variable length coded bitstreams from either end. Except for a small fixed number of extra bits appended to a sequence of code words, the scheme is as efficient as Huffman coding. The extra operations required at the coder and decoder are code word reversal and one EXOR for each bit.
Keywords :
decoding; variable length codes; EXOR; bidirectionally decodable streams; code word reversal; prefix code-words; variable length coded bitstreams; Concatenated codes; Decoding; Delay; Huffman coding; MPEG 4 Standard; Payloads; Redundancy; Source coding; Standardization; Video coding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.781009