Showing papers on "Run-length encoding published in 1974"
Patent•
09 May 1974
TL;DR: In this article, the transmission requirements for digital information representing images, such as radar displays produced by radar video returns and business letters, are reduced by encoding successive sets of duplicate data in the form of N-bit words which represent the data, each suffixed by an M-bit portion of a K-bit word representing the number of duplicate N-bits words.
Abstract: The transmission requirements for digital information representing images, such as radar displays produced by radar video returns and business letters, are reduced by encoding successive sets of duplicate data in the form of N-bit words which represent the data, each suffixed by an M-bit portion of a K-bit word representing the number of duplicate N-bit words. The output words, consisting of the M and N bit portions, are generated until all non-zero portions of the K-bit words are accounted for. The number of output words adapt to the run length of duplicate data words and provide for data compression; thus reducing transmission bandwidth requirements.
18 citations
TL;DR: Run length encoding seems to be superior for pictures of high detail and significant increase in compaction ratios is not achieved till one uses polygonal approximations of boundaries, if then.
12 citations