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vanishing point (透視畫的)消滅點;沒影點;〔口語〕快消滅的最后一點。

“ the distance implied in all objectification remains , of course , but the distance brought about by disidentification shrinks to the vanishing point . 當然,在所有客觀化中暗含的距離依然存在,但由不認同帶來的距離在此則減少到幾乎沒有。

vanishing target

In this paper , we mainly discuss several problems in the field of 3 - d computer vision , which are the algorithms for based on vanishing points to calculate the other geometry structure relationship , the self - calibration and the stratified reconstruction , etc , our main work is as following : ( 1 ) based on vanishing points to calculate geometry structure relationship 本文主要討論了三維計算機視覺領域中的利用消失點判斷空間關系、攝像機自標定、三維分層重構等問題。主要工作如下: ( 1 )利用消失點判斷空間關系。

( 4 ) the special geometric restrictions like parallelism and perpendicularity implicated in vanishing elements are deeply studied . in single - view case , the theory is presented to interpret relationship between two planar lines by applying 3d invariants of vanishing points . in two - view case , the method on extraction vanishing point of an arbitrary sp atial line is described , and moreover , the theory is presented to interpret relationship between two elements in 3d space , such as two lines , two planes , line and plane , and so on ( 4 )詳細論述了消失元素(消失點、消失直線、消失平面等)所體現的垂直、平行等特殊幾何約束關系;對單視圖,提出了一種利用消失點列的3d不變量解釋平面直線關系的方法;對雙視圖,提出了利用自共軛三角形和對極幾何約束,提取任意直線的消失點的算法,并在此基礎了提出了一種利用消失元素的3d不變量解釋直線間、直線與平面間、平面間等多種空間幾何關系的方法。

By taking advantage of parallel lines and orthogonal lines in architecture , the camera internal parameters , rotation and translation can be recovered from a set of un - calibrated images via computing absolute conic and vanishing points . the euclidean 3d model of architecture ( up to a scale factor ) can be recovered too 利用建筑物中常見的平行直線和正交直線等特點,通過絕對二次曲線和消影點等射影幾何量的計算,可以從圖象中恢復攝像機的內參數、旋轉和平移位置,同時恢復建筑物的三維歐氏幾何模型(相差一個尺度因子) 。

After the theory of the generalized point photogrammetry is introduced , its applications are presented , including computer of image parameter from vanishing point and modelling by single image , determination of image parameters by matching between vector and image , inspection of sheet - metal part and determination of plane pose by contour line matching 論述了廣義點攝影測量理論,介紹了其應用,包括由滅點計算影像參數及單像建模,由矢量與影像的匹配確定影像的參數,鈑金件的檢測與由輪廓線匹配確定飛機的姿態等。

Both methods provide good performance , and the latter is better since it can give a better describing of the residual distribution of matches . in the study of camera self - calibration , firstly , based on discussion of using and the selecting of scene constraints , two new robust vanishing point estimation algorithms are presented . one is based on peransac , and the other is based on clustering 在相機自定標技術的研究中,首先,在討論利用和選擇景物約束的基礎上,提出兩個新的消失點估計算法:基于peransac的估計算法和基于聚類分析的估計算法,后者在估計精度上優于前者;其次,提出了綜合利用空間平行線約束和相機主點位置約束的線性迭代自定標方法,提高了相機自定標的魯棒性。

In the appliance of object identify and scene analysis , we need comprehend the geometry structure relationship . if camera is not calibration how to use the scene ' s information and vanishing points to accomplish it . then we give two algorithms and introduce the range of apply 在目標識別和場景分析的應用中,我們經常需要了解場景中的空間幾何結構關系,如何在攝像機未事先標定的情況下,利用場景中的有關信息,結合圖像中的消失點,獲得場景中相關幾何信息。

In this paper , combined with vanishing point geometrical restriction given by the aerial photogrammetric modeling , a method for extracting vertical lines based on the adaptive fuzzy hough transform is presented . then the extracted vertical lines are validated by analyses of window texture 本文結合航空攝影模型給出的滅點幾何約束,利用自適應模糊hough變換,提出了一種建筑物垂直邊緣檢測方法,并用窗戶紋理分析技術來驗證高層建筑物的垂直邊緣。

The laws of geometric perspective guarantee that in a concave - mirror projection of a symmetric chandelier onto van eyck ' s support all parallel lines would meet at a vanishing point , just as the image of train track rails meet on the horizon in a photograph 幾何透視定理保證,形狀對稱工整的吊燈經過凹面鏡投射到范艾克的屏臺時,所有平行線會在消逝點上交會,就好像照片上的火車鐵軌會在地平線上交會。

The algorithm of camera ' s self - calibration is always a important research domain . in this paper by taking advantage of parallel lines and orthogonal lines in architecture as usual , we can calculate the absolute conic image and vanishing points 攝像機自標定的線性算法一直是計算機視覺領域的研究熱點,本文利用場景中的兩兩正交三條直線,計算直線的消失點,進而線性計算絕對二次曲線的像。

But the lines i drew for the painted chandelier are quite haphazard ? like pickup sticks tossed carelessly onto a floor ? and show no hint of a coherent vanishing point underneath the chandelier 不過我為圖中吊燈所畫的線卻十分散亂無序,就好像把一堆棍子隨意扔到地上一樣,并沒有在吊燈下方產生一個共同的消逝點。

A projected image obeys the laws of perspective , but the perspective lines of the floor , window casement and other features in the painting do not meet at a vanishing point as they should 投射的影像遵從透視定律,但畫中地板、窗戶及其他物體的透視線并沒有落在共同的消逝點。

“ the distance implied in all objectification remains , of course , but the distance brought about by disidentification shrinks to the vanishing point . 當然,在所有客觀化中暗含的距離依然存在,但由不認同帶來的距離在此則減少到幾乎沒有。

Looking at a box from a corner , one wall would head towards one vanishing point , the other wall would head towards the opposite vanishing point 你可以試著從一個角去看方盒子,一個垂直面朝一點消失,另一面朝相反的一點消失。 )

This close - up image of the skin makes you suddenly imagine a hole on your body that continuously sucks your skin towards a vanishing point 微觀的皮膚表層影像,乃臆想人身上若是有個孔動會不斷的將皮吸入,不停止的往某點消逝。

However , the vagueness of the vanishing point also holds a thin thread tightly pulling the skin , like a hair being pulled accidentally 而相對于消失點的模糊,由一條細索緊緊拉扯的表皮,像是無意的拉扯一支毛發之類的觸感。

Convergence lines : all parallel lines in a scene will always appear to converge to a single point ( the vanishing points ) 一點透視:當物體平行或者垂直于觀察者的時候,一點透視是很明顯的。

Based on the screened images , the vanishing point theory is used to carry on the experiment 根據所攝得的影像,運用該標定方法進行實驗,測得數碼相機的內方位元素及物鏡畸變系數。

Vanishing point control 合點控制