Výsledky vyhledávání - QM coder

Improvement of the coding efficiency for the QM-coder Autor Kuroki, Yoshimitsu, Ohta, Teiji

“…The QM‐coder [1] is an arithmetic code that is used in common in JPEG and JBIG as the binary information source coding…”
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Design of integrated multimedia compression and encryption systems Autor Chung-Ping Wu, Kuo, C.-C.J.

“… Two specific encryption schemes are obtained by applying this approach to the Huffman coder and the QM coder…”
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Forward-adaptive method for context-based compression of large binary images Autor Ageenko, Eugene I., Fränti, Pasi

“… Only minor modifications to the QM‐coder are required, and therefore existing software implementations can be easily utilized…”
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Improving DC coding models of JPEG arithmetic coder Autor Lakhani, G.

“… This led us to investigate the discrete cosine transform and statistical models of JPEG arithmetic coder, and formulate two modifications to DC coefficient coding…”
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High-fidelity coding for super high-definition images Autor Kuroki, Yoshimitsu, Ohta, Teiji

“…The super high‐definition images (SHDI) expected to be prominent in the systems of the 21st century consist of approximately 4000 scan lines and have extremely…”
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Fast implementation of two-level compression method using QM-coder Autor Nguyen-Phi, K., Weinrichter, H.

“…We deal with bi-level image compression. Modern methods consider the bi-level image as a high order Markovian source, and by exploiting this characteristic,…”
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An embedded still image coder with rate-distortion optimization Autor Li, J, Lei, S

“…It is well known that the fixed rate coder achieves optimality when all coefficients are coded with the same rate-distortion (R-D) slope…”
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Source Coding Algorithms Autor Acharya, Tinku, Tsai, Ping‐Sing

“…In this chapter, we have presented some of the key source coding algorithms widely used in data and image compression. First we have described the run‐length…”
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The Qx-coder Autor Slattery, M. J., Mitchell, J. L.

“… The Joint Bi-level Image Experts Group (JBIG) settled upon a software-optimized QM-coder…”
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An algorithm for compression of bilevel images Autor Reavy, M.D., Boncelet, C.G.

“… In contrast, the Joint Bilevel Image Experts Group (JBIG) uses a patented arithmetic coder, the IBM QM-coder, to compress image data and a predetermined probability table to estimate…”
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A rapid probability estimator and binary arithmetic coder Autor Withers, W.D.

“…We present a new integrated algorithm for binary arithmetic coding and probability estimation, competitive in speed and compression performance with state-of-the-art algorithms such as the QM-coder and Z-coder…”
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Comparative Study of Performances in Lossless Data Compression for English and Romanian Text Files Using the Q-Coder Autor Radescu, Radu

“… compression and decompression operation is applied, this work focuses on compression using the Q-coder, which is a relatively new and less-used coder than the QM-coder, which largely uses the same…”
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A Greedy Renormalization Method for Arithmetic Coding Autor Yunwei Jia, En-hui Yang, Da-ke He, Chan, S.

“…A typical arithmetic coder consists of three steps: range calculation, renormalization, and probability model updating…”
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An improved pattern matching technique for lossy lossless compression of binary printed Farsi and Arabic textual images Autor Grailu, Hadi, Lotfizad, Mojtaba, Sadoghi-Yazdi, Hadi

“…Purpose - The purpose of this paper is to propose a lossy lossless binary textual image compression method based on an improved pattern matching (PM)…”
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The ELS-coder: a rapid entropy coder Autor Withers, D.

“… Previous algorithms for entropy coding include Huffman coding, arithmetic coding, and the Q- and QM-coders, but all show limitations of speed or compression performance, so that new algorithms…”
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Optimizing Deep Belief Echo State Network with a Sensitivity Analysis Input Scaling Auto-Encoder algorithm Autor Wang, Heshan, Wu, Q.M. Jonathan, Xin, Jianbin, Wang, Jie, Zhang, Heng

“…Echo State Network (ESN) is a specific class of recurrent neural networks, which displays very rich dynamics owing to its reservoir based hidden neurons. ESN…”
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Inverse mapping of quantum properties to structures for chemical space of small organic molecules Autor Fallani, Alessio, Medrano Sandonas, Leonardo, Tkatchenko, Alexandre

“… While quantum-mechanical (QM) methods, coupled with machine learning, already offer a direct mapping from 3D molecular structures to their properties, effective methodologies for the inverse mapping in chemical space remain elusive…”
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Efficiency enhancement of K-multi constraints paths in hybrid video coder using information based quantization method Autor Kumar, Krishan, Kumar, Rajender, Mahajan, Shubham, Pandit, Amit Kant

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Efficient Video Coding Using Legacy Algorithmic Approaches Autor Jianwen Chen, Feng Xu, Yun He, Villasenor, J., Yuxing Han, Yan Xu, Yaocheng Rong, Reader, C., Jiangtao Wen

“…We show that for high bit rates, a video coding algorithm using a suitable combination of the QM coder and on other methods first published over 20 years ago can deliver video quality rivaling that of H…”
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Redesigning of JPEG statistical model in the lossy mode fitting distribution of DCT coefficients Autor Kuroki, Y., Ueshige, Y., Ohta, T.

“…) coefficients into binary strings and context modeling in the case where the binary arithmetic coder called the QM-coder is employed as an entropy coder…”
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