spatial coding 中文意思是什麼
spatial coding
解釋
空間編碼-
Frequency and spatial coding of auditory information in auditory cortex and inferior colliculus was studied in this research
本報告以蝙蝠為實驗動物，對聽皮層和中腦下丘對聽覺信息的頻率和空間的編碼進行了研究。 -
For video codec, after analyzing and researching the newest standard h. 264, an efficiency algorithm was proposed in this paper using self - feature, spatial correlation and temporal correlation to judge the encoding mode of one macro - block. through this method, the best prediction mode can be obtain before encoding, then, the coding time can be reduced dramatically with a little expense of bit - rate. for video transmission, in this paper, a transmit method was proposed using tcp / ip protocol under the environment of local networks
首先，在分析及研究最新的視頻編碼標準h . 264的基礎上，利用宏塊自身的特點和其時間、空間的相關性來判斷宏塊應該採用的編碼模式，從而提前得到該宏塊的最佳編碼模式，新方法有效地克服了原標準演算法中窮舉式的復雜演算法，在壓縮碼流只有少許增加的情況下，大幅度地提高了幀內及幀間編碼的速度。 -
This method has many advantages compared to the latter and is testified by many images. ( 2 ) because fractal coding has the characteristic of high compression ratio, this thesis designed a spatial self - embedding watermarking technique. after self - embedding, it can detect any changes to a watermarked image as well as localizing the areas that have been tampered
（ 2 ）鑒于分形圖像壓縮具有很高的壓縮比且重構圖像效果好的優點，本文利用分形壓縮實現了一種空域自嵌入水印演算法，不但能對篡改區域進行有效定位，而且具有修復功能。 -
Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality
由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。 -
Based upon application background, this thesis firstly analyses the requirements of rail - track engineering gis. then the data contents, data classification, data format, coding and layout of spatial data ( digital map ), are worked out and discussed. according to the specific equipment characteristics, operation requirements and relational database features, the corresponding coding rules are made
本碩士論文基於這一應用背景，首先對鐵路工務gis需求進行了分析，規劃了鐵路工務地理信息系統的數據內容、數據分類和數據格式，對空間數據（數字地圖）的分類、編碼和分層進行了詳細討論，並按照設備特點、業務需求以及關系數據庫要求建立了數據結構，制訂了相應的編碼規則。 -
Based on that, furthermore, the concept and logic of the database was designed. after classifying and coding of the data, a spatial database including such data types as text, figures and tables was built
以此為依據，進一步進行數據庫的概念與邏輯設計，經過數據分類、編碼等的處理，建立了一個包括圖形、文本、表格等數據類型的空間數據庫。 -
Because of the high space correlation among four descriptions, the coding method is very robust but unpractical. in this paper, a new multiple description video coding algorithm, called prediction - based spatial polyphase transform ( pspt ) multiple description video coding, is proposed to promote the error resilient ability and reduce the computational complexity of the h. 264 coder
本文在空間多相變換基礎上引入子序列間的預測，提出了一種新的基於h . 264的多描述視頻編碼演算法? ?基於子序列間預測的空間多相變換多描述視頻編碼，提高了空間多相變換多描述編碼的效率。 -
Without much theoretical deduction in this dissertation, we focus mainly on the several characteristics of wavelet, such as the localization in both the spatial and the frequency domain derived from the compact support in the two domains ; the rnultiresolution representation property ; and the octave divided frequency property, etc. after a brief overview of the principles and methods of image compression, video coding algorithms are introduced including 3 - d wavelet video coding and 2 - d wavelet video coding. based on the above, the research of this dissertation consists of three aspect : firstly, the 3d - spiht algorithm is modified which optimizes bit allocation
具體說，本論文包括以下內容：首先，本文分析介紹了小波理論，文中沒有過多的理論推導，而是從小波具有的一些特性，如時頻局部性、多解析度分解特性和倍頻程頻帶分解特性入手，力求對小波變換有一個宏觀的了解。其次，介紹了基於小波的圖像編碼的原理和常用的編碼方法。最後，介紹了基於小波的視頻編碼的方法，一種是基於3 ? d小波視頻編碼，另一種是基於2 ? d的小波視頻編碼方法。 -
Space - time coding technique is a coding technique which is applied in mimo system. it correlates to multiple antennae and signals transmitted in different periods in temporal and spatial domains, which enable the receiver can overcome fading over mimo channel and reduce error code transmitted
空時編碼是一種用於mimo系統的編碼技術，該編碼在多根發射天線和各個時間周期的發射信號之間能夠產生空域或時域的相關性，這種空時相關性可以使接收機克服mimo通道衰落和減少發射誤碼。 -
Because using ofdm, a frequency - selective fading channel can be transformed into multiple frequency - flat fading sub - channels, in the coding process, spatial diversity ( due to multiple antennas ) is integrated with frequency diversity ( due to delay spread ), therefore, the proposed code can provide higher diversity gain than space - time code alone
該編碼利用正交頻分復用把頻率選擇性衰落通道變換成平衰落通道的特性，同時引入了基於多天線的空間分集和基於時延擴展的頻率分集，比空時編碼具有更高的分集增益。 -
Interframe predictive coding is used to eliminate the large amount of temporal and spatial redundancy that exists in video sequences and helps in compressing them. motion eliminate can help to eliminate these redundancy. different kinds of algorithms use different criteria for comparison of blocks
它採用開放的編碼系統和新一代視頻編碼技術，它在視頻編碼發展史上第一次把編碼對象從圖像幀拓展到具有實際意義的任意形狀視頻對象，從而實現了從基於像素的傳統編碼向基於對象和內容的現代編碼的轉變。 -
In this paper, firstly, based on image spatial correlation, a fast algorithm named advance predictive correlation vq ( apcvq ) is presented, which aims at reducing the average coding time
本文首先利用圖像內部的空間相關性，提出一種旨在降低平均編碼時間的超前預測相關矢量量化快速演算法，並對其進行測試。
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