Video signal representation includes three aspects : the visual representation, transmission and digitalization 視頻信號(hào)的表現(xiàn)包括三個(gè)方面:視覺(jué)表現(xiàn)、傳輸與數(shù)字化。
Part i deals with background material in the acoustic theory of speech production, acoustic-phonetics, and signal representation 第一部分講述有關(guān)語(yǔ)音生成的聲學(xué)理論的背景知識(shí),聲學(xué)-語(yǔ)音學(xué),及信號(hào)表達(dá)。
As compared with the solution using pulse envelope representation, the propagation equation using complex analytic signal representation reveals different spatiotemporal behaviors such as spectrum redshifting, narrowing, and pulse broadening, etc . 2 復(fù)解析信號(hào)解會(huì)出現(xiàn)光譜紅移、變窄、脈沖變寬等與脈沖包絡(luò)解不同的時(shí)空特性。
The four-parameter basis functions decomposition of time-frequency signal representation is presented based on the characteristics of doppler frequency of the radar echoes, thereby dopplerlet transform is introduced 根據(jù)接收到的雷達(dá)目標(biāo)回波信號(hào)的多普勒頻率特性,提出用4參數(shù)基函數(shù)的時(shí)頻信號(hào)表示法,從而引出多普勒小波變換的概念。
It is well known that discrete wavelet transform yields a shift variant signal representation, which means that a simple integer shift of the input signal will usually result in a nontrivial modification of the decomposed coefficients 近年來(lái),基于小波變換的多傳感器融合得到了廣泛的關(guān)注與研究。但小波變換由于其變換過(guò)程中存在2取1的抽樣過(guò)程,使得小波變換不具備移不變特性。
In past decade, scalable video coding, allowing partial decoding at a variety of resolution and quality levels from a single compressed stream, is widely considered as a promising resolution for efficient signal representation and transmission in a network environment, such as wireless-net, internet 經(jīng)過(guò)近十年的研究,可擴(kuò)展視頻編碼被認(rèn)為是一種在無(wú)線、因特網(wǎng)等網(wǎng)絡(luò)環(huán)境下進(jìn)行視頻傳輸?shù)木幋a解決方案,它僅用一個(gè)可調(diào)整的碼流就可以滿足不同用戶的個(gè)性化需求。