نتایج جستجو برای: lossy soil

تعداد نتایج: 186355  

2015
K. Rajakumar T. Arivoli

The performance of the wavelets in the field of image processing is well known. It is experimental with multiplicity of different images types are compressed using a fixed wavelet filter. In this work Integer Multiwavelet Transform (IMWT) algorithm for Lossy compression has been derived for three different types of images like Standard Lena, Satellite urban and Satellite rural. The IMWT shows h...

1997
Koen Denecker

| This paper presents a lossless block-transform coder based on the Hadamard transform that achieves a compression ratio as good as that of the current lossless JPEG-standard and about 10 to 20% lower than the currently best state-of-the-art technique Calic. The main advantage of the proposed technique is that it produces an embedded data stream which may be truncated to achieve lossy compressi...

Journal: :IEEE Trans. Circuits Syst. Video Techn. 2000
Detlev Marpe Gabi Blattermann Jens Ricke Peter Maass

In this paper, we propose a wavelet-based image-coding scheme allowing lossless and lossy compression, simultaneously. Our two-layered approach utilizes the best of two worlds: it uses a highly performing wavelet-based or wavelet packet-based coding technique for lossy compression in the low bit range as a first stage. For the second (optional) stage, we extend the concept of reversible integer...

2000
Parosh Aziz Abdulla Christel Baier S. Purushothaman Iyer Bengt Jonsson

We consider the problem of deciding whether an innnite-state system (expressed as a Markov chain) satisses a correctness property with probability 1. This problem is, of course, undecidable for general innnite-state systems. We focus our attention on the model of proba-bilistic lossy channel systems consisting of nite-state processes that communicating over unbounded lossy FIFO channels. Abdull...

Journal: :IACR Cryptology ePrint Archive 2009
Brett Hemenway Benoît Libert Rafail Ostrovsky Damien Vergnaud

Lossy encryption was originally studied as a means of achieving efficient and composable oblivious transfer. Bellare, Hofheinz and Yilek showed that lossy encryption is also selective opening secure. We present new and general constructions of lossy encryption schemes and of cryptosystems secure against selective opening adversaries. We show that every re-randomizable encryption scheme gives ri...

In this paper, a miniaturized coplanar waveguide fed (CPW-fed) tapered slot antenna (TSA) is introduced for breast cancer detection. Here, a modified CPW to slot-line transition structure with an air-bridge is employed to broaden the transition bandwidth and increase the radiation efficiency. Through these applied modifications, negative features of the original TSA (limitation of transition) a...

2006
W. Randolph Franklin Metin Inanc

We propose a novel compression scheme to achieve lossy compression of elevation datasets. Our scheme does not use predictors in the traditional sense. Our predictors are based on planar dataset segments. We believe that this is a far better way of expressing context in an elevation dataset since it can capture continuities in different geometries and allows us to provide an error bound on the o...

2003
Rongshan Yu Xiao Lin Susanto Rahardja Chi Chung Ko

This paper presents Advanced Audio Zip (AAZ), an audio codec that provides the fine granular bit-rate scalability from lossy to lossless coding. Perceptually embedded coding principle is employed in AAZ to provide lossy reconstruction with optimal perceptual quality at intermediate bit-rates. AAZ also provides the backward compatibility where the lossless bit-stream embeds a compliant MPEG-4 AA...

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