منابع مشابه
Bi-level Image Compression with Tree Coding
Presently, tree coders are the best bi-level image coders. The current IS0 standard, JBIG, is a good example. By organising code length calculations properly a vast number of possibie models (trees) can be investigated within reasonable time prior to generating code. Three general-purpose coders are constructed by this principle. A multi-pass free tree coding scheme produces superior compressio...
متن کاملRate Control in Bi-level Image Coding
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متن کاملLossy/Lossless Coding of Bi-level Images
We present improvements to a general type of lossless, lossy, and refinement coding of bi-level images [a]. Loss is introduced by flipping pixels. The pixels are coded using arithmetic coding (either QM-coding or that of [l]) of conditional probabilities obtained using a template as is known from JBIG and proposed in JBIG-2 [2]. Our new state-of-the-art results are obtained using the more gener...
متن کاملBi-level Image Compression with Tree Coding - Data Compression Conference, 1996. DCC '96. Proceedings
Presently, tree coders are the best bi-level image coders. The current IS0 standard, JBIG, is a good example. By organising code length calculations properly a vast number of possibie models (trees) can be investigated within reasonable time prior to generating code. Three general-purpose coders are constructed by this principle. A multi-pass free tree coding scheme produces superior compressio...
متن کاملAdaptive Progressive Coding for Compression of Bi-level Video Images
In video compression, progressive coding plays an important role in terms of coding efficiency and error resilience and has been an attractive research topic since the standardization of H.264/AVC. In this paper, we propose a high-performance progressive coding scheme with the help of bi-level images. Different from progressive H.264/AVC and other video standards, we construct image epitomes as...
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ژورنال
عنوان ژورنال: The Journal of the Institute of Television Engineers of Japan
سال: 1994
ISSN: 0386-6831,1884-9652
DOI: 10.3169/itej1978.48.65