邊緣壓縮 的英文怎麼說
中文拼音 [biānyuányāsuō]
邊緣壓縮
英文
arris compression-
According to the characteristic of ieee 1394 with wide bandwidth, common and real - time, the author put forward ieee 13 94 should be applied into real - time digital video transfer in optics - electronics theodolite. before engineering realization, carried out a video image transfer test on three types of digital video tape recorders and camera with ieee 1394 interface. we found that digital videos without compression transfered under ieee 1394 standard ( transfer from 4. 5m to 100m ), compared with analog videos, have no geometric distortion, and have better luminance, contrast, definition
作為工程實現前的實驗研究，對三類具有ieee1394介面的數字錄像機和攝像機進行了視頻圖像傳輸實驗，發現無壓縮格式的按ieee1394標準傳輸的數字視頻圖像（傳輸距離從4 . 5米到100米之間） ，較原始模擬視頻圖像在幾何位置信息上沒有衰變，而在亮度、對比度、邊緣清晰度這些方面有明顯的優勢；但是按dvcam壓縮格式（常見于sony公司的系列產品，是5 ： 1的dct幀內壓縮）壓縮的數字視頻圖像，較原始模擬參照圖像有明顯的幾何畸變。In the course of measurement of workpiece face runout, variance method of the most species based on separability and image edges distilling based on morphology and marr filtering based on edges segmentation are used to enhance effectively accuracy of image segmentation and edges distilling. accuracy of measurement of face runout is enhanced effectually by use of least square method of compressing rectangle fitting edge of image and transforming of dft
該系統在工件端面跳動測量過程中，採用了基於可分性的最大類間方差法和形態學邊緣提取以及基於邊界分割的marr演算法，使圖像分割和邊緣提取的準確性得到了很大的提高；用壓縮矩形的最小二乘法擬合工件端面圖像的邊緣以及用dft變換對工件端面的跳動量進行測量，使端面跳動測量的準確性得到了很大的提高。Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress
現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。After the introduction of the innovations and the improvements of foreign hydraulic shock absorbers, the profound cushion mechanics study is done aiming to the shock absorbers chosen for the thesis ; the cushion process of hydraulic shock absorbers can be divided into several stages, which include local pressure loss caused by across sectional area shrinking, sharp edge throttling and aperture throttling
在對國外新型液壓緩沖器的研究基礎上，針對本課題所選液壓緩沖器的結構特點，提出了分階段建立機理數學模型方法。將液壓緩沖器緩沖過程分為：由於流道斷面突然收縮引起的局部壓力損失階段，緩沖柱塞的邊緣和緩沖孔的邊緣形成銳緣節流階段，當緩沖柱塞進入緩沖孔中形成的縫隙節流階段等三過程。? we justify the applicability of antisymmetry biorthonormal wavelets ( asbw ) to image coding by a number of experiments, and found that the performance of some selected asbws is at least the same as the famous 9 _ 7 wavelet, which is a symmetry biorthonormal wavelet. however asbw has a potential advantage, namely extracting image edges from the coefficients decomposed by asbw, it may give a way to feature extraction from image compression data domain without completely image reconstruction
它的性能和目前在壓縮編碼中常用的9 - 7對稱雙正交小波可以比擬，但是由於反對稱雙正交小波還有如下潛在優點，即從壓縮數據域中不經重構圖像即可提取圖像邊緣，故應對反對稱雙正交小波在圖像編碼中的地位予以充分重視。Marginal compression fractures of acetabular posterior wall with posterior dislocation of hip
髖臼後壁邊緣壓縮骨折伴髖關節后脫位的診治As to still image coding, even though the performance of wavelet image coding algorithms excel first generation image compression standard jpeg, but they will produce boring mosquito noise at low bit - rates, which are mainly located around image edges. besides that, their coding efficiency will drop rapidly for those natural images with rich textures
而在靜態圖像編碼方面，雖然小波圖像演算法的編碼性能遠遠超過第一代圖像壓縮標準jpeg ，但它在低位率條件下也會出現蚊式噪音，主要集中在圖像邊緣附近，而且對于包含豐富紋理的自然圖像，其編碼效率也會急劇下降。When the pumping area cannot approach the disk had aperture, the concentrated tensile stress appears near the edge of disk hard aperture, while the disk is pumped full aperture the surface exhibits compressive stress, and center is tensile stress which is lesser
當抽運光斑未充滿激光介質時，介質的表面靠近邊緣處會出現大的拉應力集中，並且介質中最大拉應力和表面的最大軸向位移隨抽運光斑尺寸縮小面增大；而當抽運光充滿介質時，表面是壓應力，較小的拉應力存在於介質內部。The arithmetic expressed in this text solved contradiction between the watermark ' s transparence and the arithmetic ' s maleness, using the inlaid watermark of that arithmetic having goodly transparence, and the result of the experiment shows the arithmetic has goodly maleness to jpeg compress, noise, low channel filter wave, mosaic, signal tone up, secondary watermark, cut and zoom, especially to sharpen, strengthen contrast, strengthen edge, equilibrium, and so on, signal strengthen can hardly effect to get away the watermark
實驗表明，本文演算法較好地解決了水印透明性與演算法魯棒性之間的矛盾，使用該演算法嵌入的水印具有較好的透明性，同時本文演算法對jpeg壓縮、噪聲、低通濾波、馬賽克、信號增強、二次水印、剪切和縮放等操作有較高魯棒性，特別是銳化、對比度增強、邊緣增強、直方圖均衡等信號增強處理幾乎不影響水印的抽取。The edge of image is often considered as its fundamental feature in image processing. it has been used in image processing and analyzing technologies such as feature description, image recognition, image segmentation, image enhancement and image data compression on a high level. then we can comprehend and analyze the edge image later on
在實際的圖像處理問題中，圖像的邊緣圖作為圖像的一種基本特徵，被經常應用到較高層次的特徵描述、圖像識別、圖像分割、圖像增強以及圖像壓縮等等的圖像處理和分析技術中，從而可對圖像作進一步的分析和理解。After the image lifting wavelet transformation, its coefficients have some characteristics, for example : the frequency compression characteristic, namely the primitive image energy majority of gathers to the low frequency sub - belt ; spatial compression characteristic, namely high frequency sub - belt energy majority of centralisms in primitive corresponding and so on image edge, outline position ; the coefficient distribution similarity, namely in the
經提升小波變換后，其系數具有如下特性:頻率壓縮特性，即原始圖像的能量大部分聚集到低頻子帶;空間壓縮特性，即高頻子帶的能量大部分集中在原始圖像的邊緣、輪廓等對應的位置;系數分佈相似性，即同一方向上各級子帶系數幅值分佈大體一致。To all features extracted, we selected 12 features, for example, area, perimeter, six color features, two image edge moment features, and two fractal dimension features. considering practical situation, we contracted six color features to one dimension. therefore, we obtained seven efficient features in all
對提取的特徵進行選擇，共選擇出面積、周長、六個顏色特徵、兩個圖像邊緣矩特徵、兩個分形維數特徵等共12個特徵；結合具體情況，把六個鄭州大學工學碩士論文顏色待征壓縮為一維，因此共形成了七個有效特徵。The main contributions in this paper can be summarized as follows : ? the choice of the threshold in mallat ? image multiscale edges extraction based on wavelet transfonnation is improved. a new way of choosing the threshold by using rectangle self - adapting method is presented
這樣一來，當我們利用這種小波變換數據進行圖像編碼壓縮后，從這些壓縮數據中仍可直接提取圖像邊緣而勿需重構圖像，這就為在壓縮數據域中提取圖像特徵奠定了基礎。In this paper, the causes for compression artifacts are analyzed theoretically, and the metrics to evaluate the three major types of compression artifacts ( ringing, blocking, edge blur ) are introduced
本文從理論上分析了壓縮損傷產生的原因，並提出了可對三種主要壓縮損傷（振鈴現象、塊效應和邊緣模糊）進行定量測量的方法。The paper analyzes binary - split gradient & threshold initial codebook generation - algorithms, codebook generation algorithms based on kohonen self - organizing feature map neural network, a fast codeword searching algorithm using l2 - norm pyramid data structure, side - match vector quantization algorithms, and a fuzzy classified vector quantization algorithm, systematicly explores their application to image compression, computer simulation results show that they are practical and efficient
文中重點分析了二元分裂梯度與閾值初始碼書生成演算法、基於kohonen自組織特徵映射神經網路的碼書生成演算法、基於l2范數金字塔數據結構的快速碼字搜索演算法、邊緣匹配矢量量化演算法、模糊分類矢量量化演算法，系統地研究了它們在圖像壓縮編碼中的應用，並進行了計算機模擬，實驗結果表明這些演算法是實際有效的。The paper presents a modified fuzzy kohonen neural network clustering algorithm fit for image compression, which is applied to codebook generation, theoretic analysis and computer simulation results shows that it can solve some problems which exist in ordinary kohonen self - organizing feature map neural network algorithms and improve encoding quality. the paper also presents a fast correlation - side match algorithm, which is applied to codeword searching for image vector quantization and has a good result
本文提出一種適用於圖像壓縮的碼書生成演算法? ?改進的模糊kohonen神經網路分類演算法，通過理論分析和計算機模擬，表明該演算法能夠解決普通的kohonen自組織特徵映射神經網路演算法存在的一些問題，且使編碼質量有所改善。文中還提出了快速相關?邊緣匹配演算法，將其應用於圖像矢量量化中的碼字搜索過程，取得了良好的效果。The edge which is widely used in image processing such as feature description, image segmentation, image enhancement, image compression and pattern recognition etc. is one of the most important fundamental feature of an image. it is not so much that we argue the importance of the edge of image
在實際的數字圖像處理中，圖像的邊緣圖包含了圖像的位置、輪廓等的特徵，是圖像的基本特徵之一，常常被用來進行進一步的較高層次的特徵描述、圖像分割、圖像增強、圖像復原、模式識別、圖像壓縮等等的圖像分析和處理中，以便對圖像進行進一步的理解和分析。分享友人