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Lossless Compression

Virtually Lossless Compression of Astrophysical Images

Virtually Lossless Compression of Astrophysical Images

... Computationally speaking, ZOP-Rice is obviously the fastest scheme, closely followed by JPEG-LS, RLPE-Rice, plain RLPE without context, and full RLPE (with context and arithmetic coding). Table 7 reports encoding and ...

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Lossy and lossless compression using combinational methods

Lossy and lossless compression using combinational methods

... The LZW algorithm is named after the scientists Lempel, Ziv and Welch. It is a simple dictionary based algorithm used for the lossless compression of images. Dictionary based algorithms are nothing but they ...

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Lossless Compression of Fluoroscopy Medical Images Using Correlation

Lossless Compression of Fluoroscopy Medical Images Using Correlation

... lossy compression provides for better compression, lossless compression is usually required and expected for medical ...a lossless compression on oesophagus fluoroscopy images ...

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Lossless Compression for Raster Maps Based On Mobile

Lossless Compression for Raster Maps Based On Mobile

... With the growth of using portable devices such as mobile phones, using maps in the phones are become popular. The maps are useful to know the current locations of the user who want to know their location from their ...

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New Results in Perceptually Lossless Compression of Hyperspectral Images

New Results in Perceptually Lossless Compression of Hyperspectral Images

... few compression techniques have been explored for HSI in the past ...new compression co- decs developed after J2K in the past 15 years, it is worthwhile to revisit this re- search area and investigate if ...

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Lossless Compression of SKA Data Sets

Lossless Compression of SKA Data Sets

... Astronomical data refer to data that are collected and used in astronomy and other related scientific endeavours. In radio astronomy, data that are collected from radio telescopes and satellites are stored and analysed ...

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Image Compression Using Lossless and Lossy Technique

Image Compression Using Lossless and Lossy Technique

... Image compression is the way toward diminishing the measure of information required to speak to an ...Image Compression is utilized as a part of the field of Broadcast TV, Remote detecting, Medical ...and ...

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Comparative Analysis of Compression Techniques: A Survey

Comparative Analysis of Compression Techniques: A Survey

... With lossless compression, each and every piece of information that was initially in the record stays after the document is uncompressed. The greater part of the data is totally restored. This is for the ...

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An Efficient Approach for Image Compression using HAAR Wavelet Transform

An Efficient Approach for Image Compression using HAAR Wavelet Transform

... general compression strategy prevails in a tasteful level for image transmission in limited data measure over a telemedicine application abuse discrete cosine change (DCT) ...Image Compression", This ...

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Medical Image De-noising and Compression via a 2-D Wavelet Transform

Medical Image De-noising and Compression via a 2-D Wavelet Transform

... Image Compression, Image De-noising, Image Enhancement, Image Recognition, Feature Detection, Face Detection & Extraction, and Texture Classification [1] ...Image Compression is a procedure that ...

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Lossless image compression based on data folding

Lossless image compression based on data folding

... for lossless image compression at the region of interest and lossy compression means quality of image degrades in the rest part of the ...high compression ratio and achieves lossless ...

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Lossless Image Compression Technique Using Combination Methods

Lossless Image Compression Technique Using Combination Methods

... the compression ratio achieved by the proposed ...average compression ratio of each method after applied on all tested images (RLE ...of lossless compression algorithm, and Figure 2 can clear ...

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Enchanced of Network Security Using          Simplified Encryption Standard (SES)

Enchanced of Network Security Using Simplified Encryption Standard (SES)

... The compression of data may view as a branch of information theory in which primary objective is reducing size of data or file to be ...than compression techniques are available such as Arithmetic coding, ...

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The compression–error trade-off for large gridded data sets

The compression–error trade-off for large gridded data sets

... of compression ratios (original file size divided by compressed file size) measured for seven methods, applied to six test data sets (higher is better), plotted separately by dense variables and sparse variables ...

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Lossless Image Compression Using Neural Network

Lossless Image Compression Using Neural Network

... image compression is to remove the redundancy from image in so as to allow the same image reconstruction at the receiver ...image compression techniques, lossy and ...by lossless compression ...

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Low-Complexity, Lossless Volumetric Medical Image Compression with PPM-5& Linear Prediction

Low-Complexity, Lossless Volumetric Medical Image Compression with PPM-5& Linear Prediction

... COmplexity LOssless COmpression for Images) is the algorithm at the principal of the new ISO/ITU standard for lossless and near-lossless compression of images, ...state-of-the-art ...

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Comparative Analysis of Lossless Text Compression Techniques

Comparative Analysis of Lossless Text Compression Techniques

... In lossless compression the problem is to decompose a data set into a sequence of events, then to encode the events using as few bits as possible. The basic idea of arithmetic is to assign short codeword to ...

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Novel methods of image compression for 3D reconstruction

Novel methods of image compression for 3D reconstruction

... (i.e. lossless stream of ...purpose compression algorithms can be used to compress images, but the result is ...space. Lossless compression mean thata, when decompressed, the exact replica of ...

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Lossless Image Compression using Shift coding

Lossless Image Compression using Shift coding

... image compression lossless and near-lossless compression method is introduced which is efficient due to its high compression ratio and ...this compression method it is applied on ...

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Performance Enhancement of Huffman Coding Image Compression with Chinese Remainder Theorem

Performance Enhancement of Huffman Coding Image Compression with Chinese Remainder Theorem

... increasing compression ratio of resultant data, which in turn decreasing the energy ...Data compression schemes have been applied to the fields of Wireless Sensor Networks, medical imagery, and other fields ...

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