virtual images 中文意思是什麼

virtual images 解釋
虛象
  • virtual : adj. 1. 實際上的,實質上的,事實上的。2. 【物理學】虛像的。3. 【物理學】有效的;【計算機】(網上)虛擬的。4. 〈古語〉具有可產生某種效果之內在力的。
  • images : 物象
  1. Unlike concave mirrors, the convex kind produces right - side - up virtual images, smaller than the original object, which cannot be projected onto a canvas

    與凹面鏡相反,凸面鏡呈現的虛像不會顛倒,影像比原來的物體要小,且無法投射到畫布上。
  2. The sampled representation scheme is the key problem in ibr, as the data structures decide how the reference images are collected and stored as well as how the virtual images are created. we devel op a prismy panoramic model and discuss the acquisition and rendering of the datasets

    圖像模型是基於圖像的繪制技術的關鍵所在,因為圖像的組織形式直接決定源圖像的採集存儲以及新圖像生成的方式和速度,為此我們提出了稜柱面全景圖模型並推導了新圖像生成演算法。
  3. Technology, virtual images and the destiny of metaphysics

    鮑德里亞對形而上學問題的哲學反思
  4. Such objects are made in different media ? words, physical materials, virtual images - - and, in turn, these media afford different possibilities for interpretation and manipulation

    這些實物透過不同的媒介製作? ?話語、物質材料、視覺圖片- -依次地,這些媒介為解釋和運用提供了不同的可能性。
  5. In two - view case, a method is presented for calculation 2d projective transformation and construction the virtual elements by combination of spatial points and lines. so more 3d invariants of object ' s spatial structures can be extracted from real elements and virtual eleme nts. ( 3 ) the geometric characteristics of 2d symmetric objects " in perspective images are lucubrated

    ( 2 )擴展了2d射影變換矩陣的求解方法,將單純利用點集對應的計算模式擴展到利用直線集、點線組合等多種類型來建立兩個射影平面的對應關系;總結了平面上基於點、直線元素可求解的多種3d不變量;提出了雙視圖下由點、直線元素的多種對應關系求解2d射影變換來構造「虛元素」的方法,結合「實元素」和「虛元素」可以提取更多的空間3d不變量。
  6. An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively

    基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵,即運動點目標的兩個位置相鄰近、灰度值一正一負,提出一種在復雜背景下,基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對,進而構造反相點對矢量圖,最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明,當信噪比大於或等於1 . 5時,可以有效檢測出運動點目標
  7. The human brain is an online virtual hospital site hosted by the university of iowa that provides a stunning array of images of the human central nervous system from infants to adults

    人腦是由愛荷華大學在網上開辦的一家虛擬醫院,它提供從嬰兒到成人中樞神經系統的大量精美圖片的展示。
  8. The method is used to construct virtual objects from real objects quickly, and then render the virtual objects as if they were real objects except for one more step of merging their images with the real objects images

    虛物體的概念最早被用來繪制平面反射和近似的薄板折射效果。 1998年, ofek將虛物體的概念擴展到繪制曲面反射效果,但是他的方法同樣只能得到近似結果。
  9. ( 2 ) the method of images subsection interpolation, by which an image - based 3d reconstruction and virtual navigation system is developed, is presented to solve the perspective consistency problem of virtual navigation

    ( 2 )提出了視圖分段插值方法以解決虛擬測覽中的透視關系一致性問題,實現了基於圖象的虛擬環境三維重建和虛擬瀏覽系統。
  10. The human brain is an online virtual hospital site hosted by the university of iowa that provides a stunning array of images of the human central nervous system from infants to adult

    人類大腦為愛荷華大學建立的虛擬醫院網站,提供從小孩到成人的人類中樞神經系統之影像。
  11. With above iso - surface reconstruction and the cutting of reconstructed 3d models, it is convenient to observed the inner tissues or organs images information around some point, and at the same time a basic work is given to the farther virtual acupuncture human

    結合前幾章的表面模型的構建、模型的剖切工作,比較好地顯示了穴位空間位置信息和周圍組織或器官的關系,為開展中醫針炙穴位虛擬人體研究工作打下了一個基礎。
  12. In this paper, two novel algorithms of reconstructing high resolution images from both overlapped parallel projection data and overlapped fan beam projection data with low resolution are presented. one is called virtual detector algorithm, and the other is direct reconstruction algorithm. both of the algorithms with two forms for the parallel data and fan beam data respectively are developed based on the interpolative algebraic reconstruction techniques ( iart )

    本文在研究插值代數重建法( iart )的基礎上,根據特別設計的數據採集模式(平行相疊采樣和扇形相疊采樣) ,提出了由相疊低分辨數據重建高分辨圖像的兩個新演算法,即虛擬探測器法和直接重建法。
  13. In contrast with the conventional geometry - based approaches of using 3 - d models for creating new virtual views, ibr techniques use a collection of photographs as the underlying data representation, and render directly from these original images based on pixel interpolation or reprojection

    與傳統的基於幾何的繪制技術不同,基於圖像的繪制技術所採用的數據模型是由光學圖像集構成,直接由這些源圖像通過插值或重投影的方式獲得新的圖像。
  14. One of important task in virtual reality based on images is stitching pictures to get panoramas

    基於圖像繪制的虛擬現實技術的一個重要任務是全景圖像拼接。
  15. First, we will generate a virtual model by marching _ cube surface rendering algorithm, after we segment ct images. a simplified method is used to eliminate the ambiguity problem

    本文首先由marchingcube面繪制的方法對實驗的ct數據三維可視化,並提出了解決二義性問題的方法,得到虛擬模型。
  16. The simulation results show that, either for parallel geometry or for fan beam geometry, high resolution images can be reconstructed by means of both the algorithms from the overlapped projection data. moreover, the quality of the images reconstructed by the virtual detector algorithm from the overlapped low - resolution projection data is almost as good as that of the images reconstructed directly from the high - resolution projection data

    大量模擬試驗結果表明,無論對平行束的相疊低分辨數據還是對扇形束的相疊低分辨數據,用虛擬探測器法和直接重建法均可由相疊低分辨數據重建出具有較高解析度的圖像。
  17. The main contributions of this thesis are : this thesis proposes an algorithm to build an efficient representation for large complex virtual environment from large set of reference images via pixel classification and obb technique ; this thesis proposes a hybrid representation of a complex scene by a combination of points and polygons

    該方法通過像素分類以及obb技術將整個龐雜的輸入數據重新組織為虛擬環境的有效表示;本文提出了一個點面混合的復雜場景表達方式,即以多邊形的方式表達場景中大的平面物體,而以點的方式表達場景中形狀復雜的物體。
  18. We also propose a method generating ir target images from visible images in the same scene. by pre - generation ir depth texture images using the calculation software of atmosphere radiation propagation and considering the mechanism of the noise disturbance of thermal imager, we successfully realize the real - time generation of dynamic ir scene and its virtual walkthrough

    提出了由可見圖像轉化生成場景目標紅外圖像的方法,採用了大氣輻射傳輸計算軟體和考慮熱像儀噪聲擾動機制的方法來預生成紅外深度衰減紋理圖像的模型,實現了動態紅外場景的實時生成和虛擬漫遊。
  19. Basing on these, sages enhanced and developed continuously the idea of knowledge, aesthetics and creation including touching off mood with imagery, seeking ideal state with mood, attaining the virtual image hidden behind real images by breaking the fetters of language

    正是基於「言意之辨」 ,先哲們不斷豐富、發展了以象興意、借象求境、 「得意忘言」的認識、審美與創作思想。
  20. The representation takes full advantages of traditional and cutting edge computer graphics techniques to achieve an efficient and packed representation for virtual environment ; this thesis proposes a sampling rate comparison algorithm based on jacobi matrix to eliminate redundant pixels among the reference images ; this thesis proposes a texture reconstruction algorithm to reconstruct the corresponding textures of surfaces suitable for polygon - based representation

    該表示充分利用傳統圖形學和現代圖形學的新技術,以獲取高效的虛擬場景表達方式;本文提出了一個基於jacobi矩陣的采樣密度比較演算法,以刪除參考圖象間存在的大量冗餘象素;本文提出了一個平面紋理提取方法。
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