significance bit 中文意思是什麼
significance bit
解釋
有效位- significance : n. 1. 有意義，意味深長；意義，旨趣。2. 重要（性），緊要，重大；【統計學】顯著性。
- bit : n 1 少許，一點兒，一些；（食物的）一口，少量食物。 〈pl 〉 吃剩的食物；小片。2 〈口語〉一會兒，一...
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It ' s reviewed for the coefficient classification of existing wavelet image encoding technologies. wavelet coefficient is clustered with gray structuring elements dilation and outputted in the form of fractional bit plane according to the different significance. zero tree structure is used to employ cross - subband dependency to promote the coding effort
在對現有的小波編碼器對系數的分類方法的分析下，通過灰度結構元的形態學膨脹運算對小波系數進行更細的聚類分析，按照重要性的不同以分數比特平面的形式輸出系數，通過零樹結構開發帶間相關性。 -
By reducing coding rate, more speech signals can be transferred in the same channel. so, low bit rate speech coding has especially important significance when the transmission rate is limited very strictly
通過降低編碼速率，可以使同樣的通道容量能夠傳輸更多路的語音信號，在傳輸比特限制十分嚴格的場合，低速率語音編碼具有特別重要的意義。 -
Firstly, it introduces the development of speech coding, along with the significance of the low bit rate speech coding. it also compares the model of traditional dualistic excitation lpc vocoder and the multi - band excitation vocoder, and lucubrates the analytical method of frequency domain and time domain in the parameter extraction of multi - band excitation vocoding. secondly, based on the parameter extraction operation of keynote cycle, it adopts time domain in rough estimate operation of keynote and frequency domain in fine estimate operation of keynote, in according to the immediacy required in practice, to minish operation amount
本文闡述了一種基於fpga的多帶激勵語音編碼器的研究與設計，首先介紹語音編碼研究的發展狀況以及低速率語音編碼研究的意義，接著對比分析了傳統二元激勵lpc聲碼器模型和多帶激勵編碼器模型，並深入研究了多帶激勵語音編碼參數提取的頻域和時域分析法，然後根據實際應用的實時性要求，為了減小運算量，在基音周期參數的提取的演算法實現上，本文採用在時域進行基音粗估運算，在頻域進行基音精細估計運算。 -
Introducing gray structuring elements dilation to the classification of wavelet coefficients, producing different significance for different clustering and benefiting for fractional bitplane coding. suggesting decompose encoded ll subband to get seed coefficients of dilation firstly. at the beginning of each bit plane coding the seeds is acquired, by the within - subband and cross - subband dilation of over significant pixels and significant pixels
而另一種演算法bdrl雖然編碼性能不如mcgsd ，但是由於在整個編碼的過程中沒有進行太多的分數比特平面編碼，沒有任何來回掃描圖像的步驟，所以與目前的嵌入式小波編碼器相比，復雜度是最低的，可以應用於對復雜度要求嚴格的環境。
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