The aim of this paper is to study how block characteristics influence on the compression quality fo hyperspectral data using block transformmethod. Coordinates in hyperspectral image are not equivalent - two of thema...
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ISBN:
(纸本)9783319261232;9783319261225
The aim of this paper is to study how block characteristics influence on the compression quality fo hyperspectral data using block transformmethod. Coordinates in hyperspectral image are not equivalent - two of themare space-based ones and the third coordinate corresponds to a spectral channel. Thus it is necessary to investigate the algorithm implementation with blocks extended along spectral axis. Moreover, it is known that in two-dimensional case, an increasing block size leads to improvement of compression quality. Hence it is useful to investigate the algorithm implementation with cubic blocks of increased size.
作者：
Chicheva, M. A.Yuzkiv, R. R.Natl Res Univ
SP Korolyov Samara State Aerosp Univ Breakthrough Technol Earths Remote Sensing Lab Samara Russia Natl Res Univ
SP Korolyov Samara State Aerosp Univ Appl Math & Comp Sci Subdept Samara Russia Samara State Aerosp Univ
Russian Acad Sci Image Proc Syst Inst Samara Russia
A new compression method and an algorithm on its base are proposed in this paper. The approach generalizes the familiar transform coding method to the case of three-dimensional hyperspectral data. The task of selectin...
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A new compression method and an algorithm on its base are proposed in this paper. The approach generalizes the familiar transform coding method to the case of three-dimensional hyperspectral data. The task of selecting the algorithm parameters is solved. The analysis of the algorithm in comparison with the well known image and hyperspectral data compression methods is conducted. Advantages of the proposed algorithm are discussed.
A new algorithm is proposed to compress animated 3D mesh models. First, an input mesh model is partitioned into segments, and each segment is motion compensated from that of the previous time instance. Then. the motio...
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A new algorithm is proposed to compress animated 3D mesh models. First, an input mesh model is partitioned into segments, and each segment is motion compensated from that of the previous time instance. Then. the motion residuals are effectively compressed by using a transform coding method. It is shown that the proposed algorithm yields a much higher compression ratio than the MPEG-4 codec.
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