Applying a tow-stage translational picture encoding method by a single-dimensional cosine transfrmation

I. N. Aizenberg, L. P. Yaroslavsky

Research output: Contribution to journalConference articlepeer-review

Abstract

Transformational methods of picture encoding, expand the signal realization on a certain orthogonal basis with subsequent pixel-wise quantization of the resultant signal representation coefficients. Supplementing transformational encoding by encoding a sequence of coefficient magnitudes in a decreasing order of magnitudes results in a two-stage transformational encoding method. When this method is applied to two-dimensional pictures, the method approximates the sequence of transform coefficient magnitudes as a decreasing function which is parametrically described by very few numbers. By using cosine transformation a reduction to 1.0 - 1.5 bit/pixel was achieved.

Original languageEnglish
Pages (from-to)546-547
Number of pages2
JournalIEE Conference Publication
Issue number307
StatePublished - 1989
Externally publishedYes
EventThird International Conference on Image Processing and its Applications - Coventry, Engl
Duration: 18 Jul 198920 Jul 1989

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