transform coding造句
例句與造句
- The survey of vidio compressed coding is introduced in this paper at first . then the vidio compressed method based on transform coding and the content of mpeg - 2 standard are presented . the hardware realization method of mpeg - 2 vidio compressed decoder is given in detail
本文首先介紹視頻壓縮編碼發(fā)展的概況；然后介紹基于變換編碼的視頻壓縮方法，并簡(jiǎn)要闡述mpeg - 2標(biāo)準(zhǔn)的內(nèi)容；隨后給出了一種基于專用芯片的mpeg - 2視頻壓縮編解碼器硬件實(shí)現(xiàn)方法。 - This scheme is based on the combination of traditional transform coding and prediction coding on motion compensation . and then rtp / rtcp is adopted to conduct information feedback , which makes associated error control in the coder and decoder
該視頻編碼方案以傳統(tǒng)的變換編碼與基于運(yùn)動(dòng)補(bǔ)償?shù)念A(yù)測(cè)編碼相結(jié)合的混合編碼模式為基礎(chǔ),將信源編碼與差錯(cuò)掩蓋相結(jié)合的差錯(cuò)控制方法應(yīng)用于其中,采用rtp / rtcp協(xié)議進(jìn)行網(wǎng)絡(luò)信息反饋,在編碼端與解碼端進(jìn)行聯(lián)合差錯(cuò)控制。 - Then . this paper analyzes h . 263 - protocol for video coding which is the core part of the system . the h . 263 protocol integrates the prediction coding dct transform coding and entropy coding to realize the compression for video data . in addition , it describes the codec architecture and data format . this paper ( 1 ) presents a effective algorithm of motion estimation for inter - frame prediction coding ; ( 2 ) analyzes the way implementing 2 dimension dct transform by algorithm of 1 dimension fast dct transform ; ( 3 ) optimizes the above procedures with the mmx and sse of intel . then comes up with an effective dct algorithm
接著，著重分析了系統(tǒng)的核心部分： h . 263視頻編碼協(xié)議。該協(xié)議將預(yù)測(cè)編碼、 dct變換編碼和熵編碼相結(jié)合實(shí)現(xiàn)對(duì)視頻數(shù)據(jù)的壓縮，并規(guī)定了編碼器的總體結(jié)構(gòu)和數(shù)據(jù)格式。本文( 1 )提出了一種有效的運(yùn)動(dòng)估計(jì)算法進(jìn)行幀間預(yù)測(cè)編碼； ( 2 )分析了通過(guò)一維dct快速算法完成二維dct變換編碼的方法； ( 3 )應(yīng)用intel的mmx和sse對(duì)上述過(guò)程進(jìn)行了優(yōu)化，并結(jié)合mmx和sse技術(shù)提出了一種有效的dct計(jì)算方法。 - We firstly summarize the basic theory on image code , introduce some familiar compression techniques and some international compression standards on image and video frequency ; and then , we introduce the basic theory on wavelet transform code and the jpeg2000 standard and its pivotal technique ; at last , we mainly study the embedded zerotrees wavelet ( ezw ) code , we propose a compression technique based on modification of original ezw coding , the main objective of this improved algorithm is to enhance compression ratio of an image with minimal loss during reconstruction , and we verify the improved algorithm ' s performance by doing experiments
首先概述圖像編碼理論的基本原理和方法，介紹了一些常見(jiàn)的壓縮方法和一些涉及圖像、視頻的國(guó)際壓縮標(biāo)準(zhǔn)；接著介紹了小波變換及其應(yīng)用于圖像壓縮編碼的相關(guān)理論，在此基礎(chǔ)上介紹了jpeg2000標(biāo)準(zhǔn)及其關(guān)鍵技術(shù)；最后重點(diǎn)研究了基于小波變換的嵌入零樹(shù)編碼( ezw ： embeddedzerotreeswavelet )算法，并在此基礎(chǔ)上提出了一種改進(jìn)算法，改進(jìn)算法目的是以較小的圖像重建質(zhì)量損失來(lái)獲得壓縮率的提高，并進(jìn)行了實(shí)驗(yàn)驗(yàn)證，驗(yàn)證了該改進(jìn)算法的合理性和有效性。 - Image code is a developing field on image compress and a lot of methods on that has now generated , such as statistic code , predict code , transform code , subband code , model code , wavelet transform code , vector quantization code , neural networks code , fractal code etc . in this thesis , we mainly describe our work on vector quantization code and wavelet transform code on image compress
常見(jiàn)的圖像壓縮編碼方法有：統(tǒng)計(jì)編碼，預(yù)測(cè)編碼，變換編碼，子帶編碼，模型基編碼，小波變換編碼，矢量量化編碼，神經(jīng)網(wǎng)絡(luò)編碼，分形編碼等。本文以矢量量化壓縮編碼和小波變換壓縮編碼這兩種圖像壓縮編碼方法為主要研究對(duì)象。 - It's difficult to find transform coding in a sentence. 用transform coding造句挺難的
- Secondly , we bring statistic coding , prediction coding , transform coding and analysis & synthesis coding into radar area . according to the properties of radar data , we take 4 methods , which are huffman coding ; prediction error model and lzw coding ; fft , uniform quantization in each frequency bank and huffman coding ; wavelet transform , uniform quantization in each frequency bank and lzw coding , to compress the genuine ground clutter radar data and give the corresponding results
根據(jù)雷達(dá)回波的特性，分別采用了huffman編碼法，預(yù)測(cè)誤差模型和lzw編碼法， fft 、分頻帶均勻量化和huffman編碼的壓縮算法，小波變換、子帶均勻量化和lzw編碼的壓縮算法等四種算法，并給出了用這些算法對(duì)真實(shí)的地雜波雷達(dá)回波數(shù)據(jù)進(jìn)行壓縮的實(shí)驗(yàn)結(jié)果。 - By first reviewing the basic video coding theory and then analyzing kinds of sub - module in video coding system . adaptive overlapped block motion compensation ( aobmc ) is combined with pds technology for temporal prediction . the system composed of hybrid transform coding and motion compensation prediction coding is constructed
第五章討論了本文運(yùn)動(dòng)估計(jì)和運(yùn)動(dòng)補(bǔ)償方法在視頻編碼中的應(yīng)用，首先闡述了視頻編碼理論和編碼系統(tǒng)各個(gè)子模塊的基本原理，然后在預(yù)測(cè)性菱形搜索和自適應(yīng)重疊塊運(yùn)動(dòng)補(bǔ)償基礎(chǔ)上運(yùn)用變換編碼加運(yùn)動(dòng)補(bǔ)償?shù)念A(yù)測(cè)編碼方法實(shí)現(xiàn)一個(gè)混合視頻編碼的方案。 - The proposed md mesh - based motion coding methodis then combined with the pairwise correlating transform , and acomplete md video coding scheme is proposed . further measures are takento reduce the mismatch between the encoder and decoder that occurs whenonly one description is received and the decoder reconstruction isdifferent from the encoder . the performance of the proposed scheme isevaluated using computer simulations , and the results show , compared toreibman s md transform coding mdtc method , the proposed schemeachieves better redundancy rate distortion performance
數(shù)據(jù)重傳必然會(huì)引起延遲，因而在需要很短延遲的應(yīng)用中是行不通的，如雙向無(wú)線通信同時(shí)在以廣播方式進(jìn)行數(shù)據(jù)傳輸時(shí)也是行不通的當(dāng)有大量突發(fā)錯(cuò)誤時(shí)，糾錯(cuò)碼如分組糾錯(cuò)碼block code及卷積碼convolutional code無(wú)法在不產(chǎn)生額外延遲及需要額外運(yùn)算的前提下對(duì)數(shù)據(jù)提供足夠的保護(hù)而錯(cuò)誤掩蔽的性能則受接收到數(shù)據(jù)與丟失數(shù)據(jù)之間的殘留相關(guān)性大小的影響。 - Image code is a developing field on image compression and a lot of methods on that has now generated , such as predict code , transform code , statistic code , subband code , fractal code , model code , vector quantization code , neural networks code , wavelet transform code , etc . in this paper , we set focus on the wavelet transform code
常見(jiàn)的主要編碼方法有預(yù)測(cè)編碼，變換編碼，統(tǒng)計(jì)編碼，子帶編碼，分形編碼、模型編碼、矢量量化編碼，神經(jīng)網(wǎng)絡(luò)編碼，小波變換編碼等等。本文主要研究基于小波變換的圖像編碼方法。 - At the receiver , we analyzed the problem with reconstruction of information lost in image sub - block based on transform coding of image , and a technology of lost information reconstruction with corresponding fast algorithm of sub - block information reconstruction based on the boundary information of image sub - block is proposed
在接收端，我們以變換編碼技術(shù)為對(duì)象，對(duì)于圖像子塊受損的信息重建問(wèn)題進(jìn)行了深入分析，建立了利用圖像子塊邊界信號(hào)重建丟失信息的模型。 - Currently , transforming coding is one of the most used approach for image coding , where the discrete cosine transform ( dct ) , the discrete wavelet transform ( dwt ) , and the lapped biorthogonal transform ( lbt ) are widely utilized . how to reduce the complexity of these discrete transforms , is the key technique to image compression . in this thesis , a type of lapped biorthogonal transform which can map integers to integers is considered
變換編碼是圖像壓縮中的主流方法，其采用的主要變換有離散余弦變換、離散小波變換、雙正交疊式變換，如何減少這些離散變換的計(jì)算復(fù)雜性，一直是圖像壓縮研究的重要課題。
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