比較好的圖像 的英文怎麼說
中文拼音 [bǐjiàohǎodetúxiàng]
比較好的圖像
英文
reasonable image- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 較 : Ⅰ動詞1 (比較) compare 2 [書面語] (計較) dispute Ⅱ副詞(比較) comparatively; relatively; fair...
- 的 : 4次方是 The fourth power of 2 is direction
- 圖 : Ⅰ名詞1 (繪畫表現出的形象; 圖畫) picture; chart; drawing; map 2 (計劃) plan; scheme; attempt 3...
- 像 : Ⅰ名詞1 (比照人物製成的形象) likeness (of sb ); portrait; picture 2 [物理學] image Ⅱ動詞1 (在...
- 比較 : 1 (對比) compare; compare with; contrast; parallel (with); comparison; by comparison; in comp...
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By two ways, this paper debates the theory of fracture detection : on one hand by the way of edge detection in image processing ; on the other hand by time series analysis. the detection by time series analysis is more antinoise than edge detection in image processing. edge detection theory in image processing mainly includes correlation data, fuzzy edge detection, entropy operator edge detection and gradient edge detection
圖像處理中的邊緣檢測的方法主要包括相干數據體法、模糊邊緣檢測法、基於熵運算元的邊緣檢測法、梯度邊緣檢測法;其中模糊邊緣檢測法比較依賴于參數的選擇,其渡越點兩邊的像素區別明顯;熵運算元的檢測方法則是檢測的圖像邊緣比較光滑,連通性好;梯度檢測法可以使用不同的運算元核,演算法比較簡單;相干數據體對于總體的大的裂縫的分佈具有比較奸的反應。Fractal coding has been proved useful for image compression. it is also proved effective for content - based image retrieval. in the paper, we present a block - constrained fractal coding scheme and a matching strategy for content - based image retrieval. in this coding scheme, an image is partitioned into non - overlap blocks of a size close to that of a query iconic image. fractal codes are generated for each block independently. in the similarity measure of fractal codes, an improved nona - tree decomposition scheme is adopted to avoid matching the fractal codes globally in order to reduce computational complexity. our experimental results show that our coding scheme and the matching strategy we adopted is useful for image retrieval, and is compared favorably with other two methods tested in terms of storage usage and computing time
分形編碼在圖像壓縮方面取得了很好的效果,同時,分形編碼也能夠用於基於內容的圖像檢索.本文提出了一種基於塊限制的分形編碼演算法和匹配策略,並將它們用於圖像檢索.在我們編碼演算法中,圖像會被預先分成互相不重疊的子圖像塊,然後對這些子圖像進行獨立地分形編碼,從而獲得整幅圖像的分形碼.該編碼演算法能夠在很大程度上減少編碼時間.在進行圖像間相似性的匹配時,我們採用改進的基於九叉樹的分配策略,從而避免全局地進行分形碼的匹配,減少了計算量.實驗結果說明,我們的編碼演算法和匹配策略能夠比較有效地應用於基於內容的圖像檢索,在計算時間和存儲時間上都優于實驗中其它兩種方法2, under equally see the quantity, compress the calculate way s exportation code plain deal connect the good and bad that decide its function of the good and bad, or say, output the code the term of same alike rate the bottom, and the portrait quantity reflected the function of the compression calculate way. adopt with dv all because of the m - jpeg an inside compress the way, efficiency of their compression certainly want lower than mpeg2. certainly, this is an average circumstance, at the time that low code rate, the mpeg2 can compare the m - jpeg compression the ratio high and a lot of but keep the good diagram to resemble the quantity ; but at request the diagram to resemble the quantity the good time for example the sow the room program edit with empress period creation, their difference to is not very big. too is to say, just at the compression efficiency that not emphasize the portrait quantity that the circumstance, mpeg2 is high
2在同樣的視頻質量下,壓縮演算法的輸出碼率直接決定其性能的優劣,或者說,輸出碼率相同的條件下,圖象質量的優劣反映了壓縮演算法的性能。由於m - jpeg和dv都是採用幀內壓縮方式,它們的壓縮效率當然要比mpeg2低。當然,這是一個平均情況,在低碼率的時候, mpeg2可以比m - jpeg的壓縮比高很多而保持較好的圖像質量而在要求圖像質量很好的時候比如演播室節目編輯和後期製作,它們的差別不是很大。By means of images processing of satellite, geometrical correction of images from uav rs system was accomplished by polynomial. in the processing of images of wuming in guangxi province, a set of scan large - scale relief maps were used
借鑒衛星影像的處理方法,將目標區現有的大比例尺地形圖數字化后,利用多項式法完成了廣西武鳴城區無人機遙感飛行試驗影像的幾何糾正,並取得了較好的效果。In this dissertation, towards different states of tongue, we define different tongue pathology areas, propose relevant sub - images selection methods and gets research objects ; according different states of tongue, this dissertation compares different ways to extract texture features and classifies states of tongue well using the most appropriate features, making preparation for the auto - diagnosis of symptoms and diseases ; the dissertation sets up a texture - based symptom diagnosis model and diagnoses asthenia and sthenia syndrome and external and internal syndrome more accurately ; moreover, based on expert knowledge, this dissertation uses texture, colors and shape information of tongue images, to survey diagnosis of some diseases. first, the red prickles classification is studied in the dissertation
本文針對不同的舌象,確定了不同的舌病理區域,提出了相應的舌子圖像選取方法,明確了紋理特徵的研究對象;針對不同的舌象,比較了多種紋理特徵提取方法,確立了每種舌象的最佳紋理特徵,較準確的分類了各類舌象,為證候和疾病的自動化診斷做好了準備;建立了基於紋理特徵的證候診斷模型,應用該模型,較準確的診斷了虛實證候和表裡證候;此外,基於專家知識,本文融合了舌圖像的紋理、顏色和形狀信息對部分疾病的自動診斷進行了研究並取得了較好的結果。In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )
主要研究內容包括:一、總結分析了當前水下導航的常用方法和不足之處,指出基於航位推算的導航方法,存在著最大的問題就是導航誤差的積累問題,如果沒有修正系統,這種方法很難滿足使用要求;其次指出基於聲學的導航方法,造價昂貴,導航范圍有限,難以滿足自主水下航行器大范圍導航的需求;二、總結了當前水下地形輔助導航的主要技術路線,一是基於地形高程的匹配方法,這是當前研究的重點;二是基於地形圖像的匹配方法,由於缺乏良好的圖像傳感器,和可用的海底圖像地圖,目前這種方法還有待研究發展;三、將兩種地形高程匹配的常用方法應用到自主水下航行器上:以相關演算法為前提的地形輪廓匹配( tercom )方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航( sitan )方法,前者演算法簡單可靠,但是導航精度不高,後者雖然精度比較高,但存在著演算法較為復雜、有可能發散和出現奇異值等問題。This paper studies to get the image of thenar by using a video camera, and carries on the necessary image processing by software with the information captured, and gets the ideal image to provide the image data basis for follow - up cad after the processing such as median filtering, sobel or kirsch ' s operator edge detection, image reversal and image enhancement etc. in this paper, the pressed image information of thenar captured by camera have been carried on processing and analyzing, and the result has been compared with that of image acquired by the scanner
本文研究了利用攝像頭獲取腳底圖像,再通過軟體將所獲信息進行必要的圖像處理,經中值濾波、 sobel或kirsch運算元邊緣檢測、亮度調整及反置、圖像增強等處理后,得到滿意的圖像為后續的cad提供圖像數據依據。本文對攝像頭採集的足底受壓圖像信息進行了處理和分析並與掃描儀的圖像處理結果進行了比較,由結果得知攝像頭輸入方法是一種簡單實用的輸入方法,且能很好的滿足設計要求。The eno - biorthogonal wavelet transforms are fit for compressing the images which contain a great lot jumps, and having good ratio of compression
Eno -雙正交小波變換演算法非常適合於壓縮包含大量劇烈跳躍信息的圖像,具有較好的性能壓縮比。In addition, we proposed an adaptive histogram equalization method with variant window size over each pixel. this method produces more appropriate window size for each pixel than others
與已有的方法相比,由該方法生成的窗口大小能較靈活地適應了圖像中不同區域的灰度分佈,取得了較好的結果。By comparison of k - l change and k - t change, this paper thinks tasseled cap change can separate vegetation from soil better
比較cbers - 01圖像k - l變換和k - t變換的兩個主要成分,發現纓帽變換能較好地分離土壤和植被。Two kinds of method to divide the photo into blocks are presented in the dissertation, then the techniques of appending zero, dct transform and changing low frequency coefficents are utilized to hide information ( in fact, information is masked in dc components ). so information is hided in the low frequency domain of a photo. furthermore, good quantity evaluation is got after compared with original photos
本文通過對原圖像分別使用兩種分塊方法進行分塊,然後通過補零, dct變換,改變低頻系數來進行信息隱藏(實際上是在直流分量上隱藏信息) ,實現了在低頻域進行信息隱藏的目的,且使得隱藏后的圖像與原圖像相比具有較好的質量評價。The study indicates that digital photographic aerial photo, ikonos ( panchromatic and multi - spectral ), spots ( panchromatic and multi - spectral ) and the emerging map of spot4 ( panchromatic ) and etm can all be used in the forest management inventory, whereas etm ( including tm ) or the emerging map of etm and spot4 ( panchromatic ) can be used to investigate forest resources and draw maps in the mountain area of better forest aspect, when the first three remote - sensing sources can be used in the investigation of urban resources and the demand on detailed investigation is higher or the map - drawing of 10, 000 ratio scale
研究表明:數字航空像片、 ikonos (全色和多光譜) 、 spot5 (全色和多光譜) 、 spot4 (全色)與etm的融合圖都可以應用於森林資源二類清查,而前三種遙感信息源也適用於城市資源調查以及要求調查詳細程度更高或1 : 1萬比例尺的制圖,在林相較好的山區,可應用etm (包括tm )或etm與spot4 (全色)的融合圖進行森林資源調查與制圖。Secondly : i choose a non - linear filter named hybrid filter which combines linear and nonlinear filters is proposed for print gray image, it performs better than average fil ters and median filters on noise reduction. while retaining edges of an image. i suggest a modified version and fast implementation of this filter improve its performance. because of its reduced computation complexity, this filter excels in real - time tasks
因為噪聲時常包含非線性問題,針對這種情況,既要抑制噪聲,又要保護圖像邊緣,本文採用一從度指紋圖像上噪處理研究種基於線性,非線性的混合濾波器演算法,該演算法比均值濾彼器,中值加權濾波器,格形濾波器,具有更好的抑制噪聲的能力,不但較好的保持圖像地邊緣,而且能反映圖像的幾何結構和細節特性。But for some special medium materials, such as liquid crystal display controller pcb, magnifiers must be used to gather images to gain enough precision of inspection for the weak contrast between the basic board and the conductor. the images near the light axes are much cleared than that far away from the light axes, so the images can not be simply segmented by black and white and inspected with the methods of pcb which are based on the black white image
但對於一些特殊介質材料,如液晶顯示控制電路板的檢測,由於基板和導體之間對比度不大,而且為了達到檢測精度,必須採用放大鏡頭進行圖像採集,成像系統光軸附近的圖像成像質量較好,而偏離光軸較遠的圖像質量較差。不能通過簡單二值化來很好地分割圖像,而已有的印刷電路板檢測方法都是建立在二值圖像進行分析的基礎上。The simulation results show the proposed method can effectively filter the impulse noise and deduce the negative impact on image smoothing by the median filter. ( 2 ) for the feature extraction, an improved barnard - log feature extraction algorithm is proposed
並通過模擬說明該演算法能夠比較好的濾除沖激噪聲和減小中值濾波對圖像引入的平滑效應; ( 2 )針對特徵提取問題,採用與log特徵聯合操作的方法,改進barnard特徵提取演算法。2. because traditional invariant moments have their limitations in recognition and computation, the wavelet moment invariants are introduced and applied to the image recognition of airplane
針對傳統的幾種矩的缺陷:對有噪聲的圖像的識別效果不理想; zernike矩雖然有比較好的識別效果,但計算量大。As a conclusion, the jpeg stationary picture has a good compressing effect on middle and high bit rate, but exists a serious diamond effect at low bit rate resulting from the block - based dct scheme. so jpeg images can not very well make the needs transmitting images by networks at high compressing rate
實驗結果表明,在一些低復雜度的應用中, jpeg2000不可能代替jpeg ,但對于有較好的圖像質量、較低比特率或者是一些特殊特性的要求(漸進傳輸和感興趣區域編碼等)時, jpeg2000將是最好的選擇,從而驗證了採用jpeg2000圖像壓縮標準的優越性和可行性。Gabor transformation : in frequency field, gabor transform has sound direction selectivity. selecting a certain direction and picking - up corresponding feature value by this means was another choice for image research
基於頻率域分解的gabor變換, gabor變換有著比較好的方向選擇性,利用這一點特性,為圖像分析提供了另一個思路。At last, parallel algorithm design is researched and applied to image edge detection, some good results are gained correspondingly on a simulation cluster system. at the same time, by using theoretical analysis and simulated computation, with reference to
使用靜態負載平衡、多進程歸約兩種策略,實現了圖像邊緣檢測運算元在圖像處理中的并行演算法,並在模擬集群環境下實驗運行,獲得了相對比較好的實驗結果。Mpeg file integrates in - frame compression and between - frame compression. it has good graph quantity while the compression ratio is high. therefore, the storage space is saved
Mpeg文件綜合了幀內壓縮和幀間壓縮方法,在壓縮比較高的同時保證了很好的圖像質量,這樣節省了存儲空間。分享友人