projective line 中文意思是什麼
projective line
解釋
射影直線- projective : adj. 1. 投影的，射影的。2. 凸出的，突出的。3. 【心理學】投射的。
- line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
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Based on projective geometry, the research works about 3d invariance ' s extraction and application have been done in this thesis as following : ( 1 ) the basic theories and concepts in projective geometry are systematically summarized. it includes : the camera models of perspective imaging, projective collineation, cross ratio, a simple compare about invariance ( invariant ) among some geometry transformations, fundamental matrix, epipolar and epipolar line in epipolar geometry, and so on. ( 2 ) the calculation methods for 2d projective transformation are extended from points to multi - element, which includes points, lines, points lines and so on, to get the relationship between two projective planes
基於射影幾何理論，論文圍繞3d不變特徵的提取和應用進行了如下的研究工作： （ 1 ）系統總結了射影幾何中的若干基礎概念，包括：透視成像的相機模型、射影對應、交比不變量、基於不同幾何變換下的不變量的簡單對比、對極幾何中的基礎矩陣、對極點、對極線等。 -
Secondly, according to convex geometric characteristics, a common - perpendicular - line algorithm is developed for the distance between the convex nurbs surfaces by making surfaces discrete, approximating the distance by one between convex hulls of discrete surfaces and solving a linear programming problem to get their vertical projective length on common perpendicular direction, that is, the original distance
然後，針對凸曲面的幾何特徵，給出了nurbs凸曲面間距離求解的公垂線法和切平面法。公垂線法是把曲面間的距離求解問題轉化成曲面的離散點生成的凸殼間的距離，再歸之為兩凸殼在其公垂線上投影集合間的距離，由此抽象成一個線性規劃問題，估算出近點對。 -
Another important content in this chapter is that we linearly calibrate the nonlinear parameters of camera based on the rectification features of lens and the fact that projective transform converts a line into a line
本章中另外一個重要的內容是，基於透鏡畸變的特點並根據射影變換保持直線不變的約束條件，線性地確定非線性內參數。
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