In this paper, we propose a hyperspectral image lossy-tolossless compression using three-dimensional Embedded ZeroBlock Coding (3D EZBC) algorithm based on Karhunen-Loève transform (KLT) and wavelet transform (WT). Furthermore, an improved Hao’s matrix factorization method for integer KLT is also presented, which can reduce not only the computational complexity but also the memory requirements....

This paper presents conditional versions of Lempel-Ziv (LZ) algorithm for settings where compressor and decompressor have access to the same side information. We propose a fixed-length-parsing LZ algorithm with side information, motivated by the Willems algorithm, and prove the optimality for any stationary processes. In addition, we suggest strategies to improve the algorithm which lower the d...

Index Terms Computer Science [1] Sonal, Dinesh,kumar, "a Study Of Various Image Compression Technique", National Conference On Challenges And Opportunities In Information Technology, Hisar, 2007. [2] David Solomon, "data Compression", The Complete Reference, Third Edition. [3] Somasundaram And S. vimala, "codebook Generation For Vector Quantization With Edge Features&qu...

This paper presents the implementation of Linear Frequency Modulation (LFM) pulse compression technique over acoustic waveguides at frequency range (2kHz--3kHz). The medium used for acoustic chirp propagation is air. Real time pulse compression was carried out over DSP kit (TMS320C6713). The obtained range from the compressed pulse accedes to the actual range of the target (sound source). The s...

In this paper, a natural image compression method is proposed based on independent component analysis (ICA) and visual saliency detection. The proposed compression method learns basis functions trained from data using ICA to transform the image at first; and then sets percentage of the zero coefficient number in the total transforming coefficients. After that, transforming coefficients are spar...

In this paper, we propose an effective platform for evaluation of Bengali text compression schemes. A novel scheme for construction of Bengali text compression corpus has also been incorporated in this paper. A methodical study on the formulation-approaches of text corpus for data compression and present an effective corpus named Ekushe-Khul for evaluating the Bengali text compression schemes h...

Venous ulcers are a common, costly occurrence. Treatment typically includes the use of short-stretch and four-layer bandages--both with demonstrated ability to increase venous return and healing rates. Which is superior is unclear. To determine whether short-stretch bandages or four-layer compression systems provide shorter healing times and fewer adverse events when used in adults with venous ...