Results 21 to 30 of about 238,673 (338)
Discrete Wavelet Transform [PDF]
, 1998 In general, discrete wavelet transforms are generated by samplings (in the time-scale plane) of a rorn sponding continuous wavelet transform.
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The Reproducing Kernel Function for the Image Space of a Limited Spectrum Wavelet Transform
Journal of Harbin University of Science and Technology, 2017 In order to describe the nature of image space of the wavelet transform and a limited spectrum and decay faster wavelet，this paper uses Shannon scaling function to construct a wavelet function，take advantage of wavelet analysis theory to give the nature ...
DENG Cai-xia, HE Peng, CHEN Xia-xia
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Non-decimated Wavelet Transform for a Shift-invariant Analysis
Trends in Computational and Applied Mathematics, 2018 Due to the ability of time-frequency location, the wavelet transform has been applied in several areas of research involving signal analysis and processing, often replacing the conventional Fourier transform.
Gabriela de Oliveira Nascimento Brassarote +2 more
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Optimal decomposition level of discrete, stationary and dual tree complex wavelet transform for pixel based fusion of multi-focused images [PDF]
Serbian Journal of Electrical Engineering, 2010 The fast development of digital image processing leads to the growth of feature extraction of images which leads to the development of Image fusion. The process of combining two different images into a new single image by retaining salient features from ...
Kannan Kanagaraj +2 more
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Timeline analysis and wavelet multiscale analysis of the AKARI All-Sky Survey at 90 micron [PDF]
, 2008 We present a careful analysis of the point source detection limit of the AKARI All-Sky Survey in the WIDE-S 90 $\mu$m band near the North Ecliptic Pole (NEP).
Clements, Dave +19 more
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Norm Retrievable Wavelet Systems [PDF]
Sahand Communications in Mathematical AnalysisThis paper focuses on the norm retrieval problem for wavelet transform. The wavelet transform associated with an admissible wavelet is norm retrieval. However, this problem is difficult in special cases, i.e., for wavelet systems. We give some results of
Mahdieh sadat Aghaei +1 more
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Wavelet analysis of the multivariate fractional Brownian motion [PDF]
, 2011 The work developed in the paper concerns the multivariate fractional Brownian motion (mfBm) viewed through the lens of the wavelet transform. After recalling some basic properties on the mfBm, we calculate the correlation structure of its wavelet ...
Achard, Sophie +2 more
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IEEE Transactions on Signal Processing, 2013 Some recent methods, like the Empirical Mode Decomposition (EMD), propose to decompose a signal accordingly to its contained information. Even though its adaptability seems useful for many applications, the main issue with this approach is its lack of theory. This paper presents a new approach to build adaptive wavelets. The main idea is to extract the
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True 2-D 5/3 wavelet transform and its application for CT image lossless compression
Dianxin kexue, 2016 Wavelet transform is widely used in the field of digital image processing，and it usually processes image by separating the row and column，which can’t meet the human visual system（HVS）completely.To address this situation，a kind of true 2-D 5/3 wavelet ...
Nini XU, Mingming ZHANG, Jianming WANG
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Gabor Wavelet Transform in Image Compression
Journal of Kufa for Mathematics and Computer, 2012 In the present paper, an important mathematical transform which is called Gabor transform be used to develop a method for image compression. Gabor transform is a type of wavelet-based transform.
Ali Hassan Al-Fayadh +2 more
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