ECG data compression has been one of the active research areas in biomedical engineering. In this paper a compression method for electrocardiogram (ECG) signals using wavelet transform is proposed. Wavelet transform compact the energy of signal in fewer samples and has a good localization property in time and frequency domain. The MIT-BIH ECG signals are decomposed using discrete wavelet transf...

The Mixed Raster Content (MRC) ITU document compression standard (T.44) specifies a multilayer decomposition model for compound documents into two contone image layers and a binary mask layer for independent compression. While T.44 does not recommend any procedure for decomposition, it does specify a set of allowable layer codecs to be used after decomposition. While T.44 only allows older stan...

Run-length codes and their variants have recently been shown to be very effective for compressing system-on-achip (SOC) test data. In this paper, we analyze the Golomb code, the conventional run-length code and the FDR code for a binary memoryless data source, and compare the compression obtained in each case to fundamental entropy bounds. We show analytically that the FDR code outperforms both...

We present a method for estimating optimal context templates that are used for conditioning the pixel probabilities in contextbased image compression. The algorithm optimizes the location of the context pixels within a limited neighborhood area, and produces the ordered template as a result. The ordering can be used to determine the shape of the context template for a given template size. The o...

Guaifenesin, a highly water-soluble active (50 mg/mL), classified as a BCS class I drug.Owing to its poor flowability and compressibility, formulating tablets especially high-dose one,may be a challenge. Direct compression may not be feasible. Bilayer tablet technology appliedto Mucinex®, endures challenges to deliver a robust formulation. To overcome challengesinvolved in bilayer-tablet manufa...

In this paper a novel distributed video coding scheme was proposed based on Heegard-Berger coding theorem, rather than Wyner-Ziv theorem. The main advantage of HB coding is that the decoder can still decode and output a coarse reconstruction, even if side information degrade or absent. And if side information present or upgrade at decoder, a better reconstruction can be achieved. This robust fe...

XML is a popular meta-language in widespread use across a variety of application domains. However, its verbose nature has limited its acceptance in cases where a more succinct textual or binary data encoding format can be used. In this report, we describe AXECHOP, an XML-conscious compressor which uses a grammarbased approach to exploit the possibly significant structural redundancies within XM...

We report on numerical results from an independent formalism to describe the quasiequilibrium structure of nonsynchronous binary neutron stars in general relativity. This is an important independent test of controversial numerical hydrodynamic simulations which suggested that nonsynchronous neutron stars in a close binary can experience compression prior to the last stable circular orbit. We sh...

In this work, lossless grayscale image compression methods are compared on a public palmprint image database. The total number of test images was about 7752, with 8 bit rates. The performance using different lossless compression algorithms on the compression ratios when processing palmprint sample data is investigated, in particular, we relate the application of CALIC, JPEGLS,RAR, JPEG2000 (los...

Image compression is the process of reducing the number of bits required to represent an image. Vector quantization, the mapping of pixel intensiry vectors into binary vectors indexing a limited number of possible reproductions, is a popular image compression algorithm. Compression has traditionally been done with little regard for image processing operations that may precede or follow the comp...