نتایج جستجو برای: frequency compression
تعداد نتایج: 569252 فیلتر نتایج به سال:
Common image compression standards are usually based on frequency transform such as Discrete Cosine Transform. We present a different approach for lossless image compression, which is based on a combinatorial transform. The main transform is Burrows Wheeler Transform (BWT) which tends to reorder symbols according to their following context. It becomes one of promising compression approach based...
geometric and material nonlinear behavior of slender webs in i-column girders having stocky flanges under the action of combined lateral and axial loads is investigated. interaction curves corresponding to the application of compressive and shear loads at buckling and ultimate stages for both web plates and column sections are plotted. in addition, the effects of flange and web slenderness rati...
Address correspondence to: Susan D. Scollie, Ph.D., National Centre for Audiology, Elborn College, School of Communication Sciences and Disorders, Faculty of Health Sciences, University of Western Ontario, London, Ontario, Canada, N6G 1H1, [email protected] frequency versions of high frequency phonemes during the critical infant, toddler, and preschool years of speech and language acquisition....
BACKGROUND Previous cell culture and animal in vivo studies indicate the obvious effects of mechanical compression on disc cell biology. However, the effects of dynamic compression magnitude, frequency and duration on the immature nucleus pulposus (NP) from an organ-cultured disc are not well understood. OBJECTIVE To investigate the effects of a relatively wide range of compressive magnitudes...
A novel approach to audio signal compression is described which marries wavelet transform coding with fractal-based compression techniques. The signal is divided into frames which are subjected to a Fast Wavelet Transform, with subsequent fractal coding of high frequency wavelet coeecients using a collage approach. Results from initial implementations are examined. Compression ratios above 6:1 ...
Methods of text compression in Navy messages are not limited to sentence fragments and the omissions of function words such as the copula be. Text compression is also exhibited within ~grammatieal" sentences and is identified within noun phrases in Navy messages. Mechanisms of text compression include increased frequency of complex noun sequences and also increased usage of nominalizations. Sem...
design and implementation of a ground early warning receiver for monitoring signal of sar satellites
in this paper, a ground early warning receiver is introduced and explained for the reception and monitoring of signal from a space-borne synthetic aperture radar. this receiver can be used for various electronic warfare applications and implemented in two sectors of time parameter detector and frequency parameter detector. it can measure power, bandwidth, central frequency, pulse width, pulse r...
Wavelet transforms have become one of the most important and powerful tool of signal representation. Nowadays, it has been used in image processing, data compression, and signal processing. This paper will introduce the basic concept for Wavelet Transforms, the fast algorithm of Wavelet Transform, and some applications of Wavelet Transform. The difference between conventional Fourier Transform ...
EPC is a known coding scheme for RFID equipment. This paper suggest a scheme of an efficiently compression for EPC.
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