نتایج جستجو برای: finite wavelet frames

تعداد نتایج: 349345  

Journal: :iranian journal of medical physics 0
seyed vahab shojaedini electrical engineering department, iranian research organization for science and technology, tehran, iran

introduction automated methods for sperm characterization in microscopic videos have some limitations such as: low contrast of the video frames and possibility of neighboring sperms to touch each other. in this paper a new method is introduced for detection of sperms in microscopic videos. materials and methods in this work, first microscopic videos are captured from specimens of human semen. s...

2003
MINH H. LE

The Rake receiver for wavelet video compression with four levels of unequal error protection (UEP) codes in wide-band code division multiple access (W-CDMA) system over additive white Gaussian noise (AWGN) and Rayleigh fading channels are performed and evaluated. The deployment of Wavelets has approached a powerful technique for compressing video sequence. The wavelet transform compression tech...

Journal: :Journal of Approximation Theory 2010
Patrick L. Combettes Noli N. Reyes

A common problem in applied mathematics is that of finding a function in a Hilbert space with prescribed best approximations from a finite number of closed vector subspaces. In the present paper we study the question of the existence of solutions to such problems. A finite family of subspaces is said to satisfy the Inverse Best Approximation Property (IBAP) if there exists a point that admits a...

Journal: :JSW 2012
Fei Xiao Hexin Chen Yan Zhao

The algorithm of wavelet decomposition and reconstruction are applied in the audio error concealment method in this paper. When there is lost frame of the audio signal, the correct frames which lie before and after the lost frame are wavelet decomposed firstly. Then the two sets of the wavelet coefficients obtained from the wavelet decomposition are utilized to get the wavelet coefficients for ...

Ali Kermani Seyed Vahab Shojaedini, Vahid Reza Nafisi

Introduction Automated methods for sperm characterization in microscopic videos have some limitations such as: low contrast of the video frames and possibility of neighboring sperms to touch each other. In this paper a new method is introduced for detection of sperms in microscopic videos. Materials and Methods In this work, first microscopic videos are captured from specimens of human semen. S...

Journal: :IEEE Transactions on Signal Processing 2015

Journal: :Applied and Computational Harmonic Analysis 2008

Journal: :The Journal of Fourier Analysis and Applications 1997

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