pixel image 中文意思是什麼
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Sequentially, the author discussed the technologies of medical image 3d visualization according to the clinical applications. with the development of computer, 3d visualization and computer graphics, the 3d visualization of medical images has progressed from fourier transform and convolve inverse projection to mpr ( multi - planar reformation, mpr ) and mtp ( maximum intensity projection, mtp ), nowadays, the real 3d reconstruction method, surface and volume rendering has risen. the image registering, image segmentation, pixel data set construction and 3d special interpolation are the key technologies in medical images 3d reconstruction
隨著計算機技術、三維可視化理論和計算機圖形學的發展，醫學圖像的三維可視化技術也從傅立葉變換、卷積反投影等基本圖像處理演算法，發展到真正的三維重建演算法：面繪制和體繪制；醫學圖像的三維可視化技術的應用也從三維醫學成像發展到虛擬內窺鏡，以及今天的虛擬可視化人體研究；而圖像的配準、圖像分割、體數據集的構建、三維空間插值則是醫學圖像三維可視化實現過程中的關鍵技術環節。 -
A sub - pixel image matching method on re - sampling and curve fitting
重采樣和曲面擬合的圖像匹配方法 -
In the process of processing image, image ' s vision effect is improved by some image enhance technique such as neighboring region average and pixel expanding. in accord with the feathers of the soil microphotograph, a three - level segmentation scheme is used to segment the soil microphotograph
在圖像處理過程中，對圖像進行了增強處理改善圖像視覺效果，採用了諸如灰度變換、改進的鄰域平均法和像素點擴張法改善圖像對比度以及消除圖像中的噪聲。 -
Conclusion r1 represent pixel - value of original image range block, r represent mean - value of original image range block, d represent mean - value of original image domain block, d1 represent pixel - value of resumptive image domain block, d represent mean - value of resumptive image domain block. superior perfermance of resumptive image range block is obtained as compared to conventional creative function by one iteration, that is,
） ， d _ i （ i = 1 ， 2 ， … ， n ）分別為某一恢復圖像定義域塊的均值和每一像素的像素值，我們用傳統的和改進的生成函數分別進行一次迭代，則用改進的生成函數進行迭代的恢復圖像每一值域塊的效果較好，即： -
In object - oriented image analysis " scale " is not the pixel size, but the segmentation scale threshold. scale is different for each remote sensing im age analysis
面向對象影像分析中的尺度概念已不再是像元大小，而是指影像的分割尺度，是關于影像對象異質性最小的閾值。 -
Each virtual - loop ' s output signals mainly derive from the pixel difference between consecutive image frames within the virtual - loop area. when the result of consecutive frame difference is smaller than the threshold, current frame subtracts the background to produce the virtual - loop ' s signals
各個虛擬線圈的輸出信號主要來源於幀間差分，當幀間差分的結果小於判斷閾值時，系統會自動調用減背景圖像處理方法來產生虛擬線圈信號。 -
First, resistance to geometrical distortion was obtained by using moment normalization ; second, we focus on the phase of fourier - mellin transform. before detecting watermark, synchronization could be retrieved by using the phase information. to eliminate the influence of pixel value distortion generated during print / scan process, a dft - based robust watermark algorithm was designed, which could successfully detect watermark from a severe distorted image
另一種思路是根據圖像經過旋轉、縮放、平移后，其傅立葉?梅林變換域只有相位受到影響的特點，從其相位中提取幾何失真信息，然後再進行相應的失真補償，從而消除幾何失真的影響；對于列印掃描過程產生的像素值失真，本文也提出了一種基於dft的魯棒性演算法，能在較嚴重的圖像失真情況下，成功檢測水印。 -
By using threshold segmentation, edge recognition, pixel labeling and center of gravity method, the accurate sites of every model can be acquired from the image
綜合運用閾值分割、邊緣識別和像素標記法等圖像識別技術，通過圖像得到每個模型的相關定位信息。 -
The algorithms of image processing, including pixel gray - level detection, intensity transform, noise smoothness and image sharpen are discussed in detail
本文詳細的研究了圖像處理的演算法，實現了像素灰度提取、灰度變換、圖像平滑、圖像銳化等演算法。 -
Starting from this premise, we can easily conceive a height map as a greyscale image, where the intensity of each pixel corresponds to a height
在這個前提下，我們可以很容易的想到高度圖就是一個灰度圖，每個象素的強度值就為相應的高度值。 -
Through describing the space sampling process of ccd, the composing factors of modulate transfer function ( mtf ) of ccd integral sampling process are analyzed. meanwhile, an effective method to analyze the mtf of discrete sampling image system is put forward and is used to analyze and compare mtfs of sub - pixel image system and singlechip ccd system. as a result, definitions of ccd optical transfer function ( otf ) and optical mtf are presented and effective methods to measure ccd mtf are brought forward
本文通過對ccd器件空間采樣過程的描述，詳細分析了ccd積分采樣過程調制傳遞函數的構成要素，提出了分析離散采樣成像系統調制傳遞函數的有效方法，並用該方法分析比較了亞像元成像系統與單片ccd系統的mtf ，給出了ccd器件光學傳遞函數（ otf ）和光學調制傳遞函數（ mtf ）的定義，提出了檢測ccd調制傳遞函數有效方法，採用幾種不同測量方法測定了tdiccd的調制傳遞函數，並進行了比較分析。 -
A hardware independent image acquisition interface is designed. aimed at grid images, a reasonable image processing procedure is employed, including segmentation, binarization, close, thinning and sub - pixel image processing technique based on b - spline interpolation
基於網格標記圖象，設計了一系列的合理的圖象處理步驟，包括圖象分割並二值化、二值圖象閉運算、細化以及基於b樣條插值的亞象素圖象處理技術。 -
Under the condition of space moving changed system and the engineering practice, a function of the pixel dimension, the mtf of ccd sensor imaging, the width of target strip and the image motion has been acquired 4. under the condition of one pixel image motion and the nyquist frequencies, adopting the convolution method, the ratios of the mtf with image motion to the idea mtf are 0. 667
這樣就為在工程實際中，在空間移變條件下，求取了ccd探測器影像的mtf 、像元尺寸、影像分辨力和像移量四者之間的一個簡潔的函數關系:材了萬二1一（ 2 + n一m ） 2 ? o4n4 .採用模擬的方法和採用卷積方法的比較。 -
Through it, betelgeuse would appear not as a mere point of light but as a 3, 000 - pixel image offering a level of detail currently available only for nearby planets
至於參宿四，看起來不再是一個光點，而是具3000像素的影像，所提供的詳細程度是目前在附近行星上才能得到的。 -
The algorithms employed in this paper are redesigned or improved for grid images. for example, an adaptable moving window gray scale threshold image segmentation method is proposed originally, a parallel template matching thinning algorithm is improved greatly, a sub - pixel image processing algorithm based on b - spline interpolation is present independently. 3
其中獨立設計了自適應的移動窗口灰度閾值圖象分割法，優化設計了并行模板匹配細化演算法，獨立提出了基於三次均勻b樣條插值放大局部圖象的亞象素圖象處理演算法，並都取得了較好的處理效果。 -
This camera provided a 720, 000 - pixel image
本照相機提供了一個72萬像素的圖像。 -
Gets the 8 x 8 pixel image that will be drawn in the properties window
獲取將繪制在「屬性」窗口中的8 x 8像素圖像。 -
Let ' s use the blackberry logo 196 x 169 pixel image used in the screen shots above as an example
讓我們用黑莓標志形象用於196 169像素以上鏡頭畫面為例 -
In normalization of the iris image preprocessing stage, the iris image is normalized into a 64 1024 grey pixel image. after normalization, the normalized image is divided into three parts and then these parts are divided into eighteen bands
接著，在虹膜圖像預處理的歸一化演算法中，本文採用直角坐標與極坐標映射理論把定位后的圖像歸一化到一個64 1024的灰度矩陣中。 -
Under the condition of one pixel image motion, adopting the modulation method, the ratios of the mtf with image motion to the idea mtf are 0. 591. the difference amount of mtf is shown. they are analyzed that the types of optic system, obstructive ratio influence the mtf and the methods improvement the imaging resolution of remote sensing camera
在存在一個像元的像移量時在奈奎斯特頻率處，卷積法的有像移的mtf值和理想的mtf值之比為0 . 591 ，模擬法在存在一個像元的像移量時，有像移的mtf值和理想的mtf值之比為0 . 667 ，從中看到了兩者之間定量的差異。
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