3D Edge Detection by Selection of Level Surface Patches

2008 ◽  
Vol 34 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Enric Meinhardt ◽  
Ernesto Zacur ◽  
Alejandro F. Frangi ◽  
Vicent Caselles
2015 ◽  
Author(s):  
Miguel Angel Villanueva Portela-CA ◽  
Ricardo Emiro Ramirez Heredia

2012 ◽  
Vol 170-173 ◽  
pp. 2962-2965
Author(s):  
Yong He Deng

In this paper, it is proved that the principle of level surveying is uncertainty, formula of level surveying varies with selection of horizontal surface and level surface, formula of level surveying doesn’t vary with placement of level, and the principle formula of level surveying of college surveying is explained reasonably. Finally, I advise to study all results of humans level surveying based on my paper to find some new and exciting results.


2015 ◽  
Vol 1125 ◽  
pp. 541-545 ◽  
Author(s):  
Muhamad Lazim Talib ◽  
Suzaimah Ramli

Lane detection system for the driver of the car is an important issue for the inquiry as a platform for safe driving experience. Implementation of this system is trying to investigate the possibility of traffic accidents, monitor the efficiency of the movement and position of the car contributes to the development of autonomous navigation technology. The purpose of this study is to get the best selection of banks in a better Hough transform technique to detect lane roads using edge detection techniques. For this study, Canny, Sobel and Prewitt edge detection is used as a trial. Selection of the best edge detection was using neural network techniques. Improved Hough Transform is used to extract features of a structured road. Point area near the straight line model adopted to accelerate the speed of calculation data and find the appropriate line. Prior knowledge is used in the process of finding a path to efficiently reduce the Hough space efficiently, thereby increasing the resistance by increasing the processing speed. Experiments provide good results in detecting straight and smooth fair curvature lane on highway even the hallways are painted shadows. Data from the lane highways have been taken in video format. Experiments have been done using an edge detection technique of choice in each scenario, and found that the best method of producing high accuracy of detection is to use intelligent edge detector. In this way, other people will be the best in certain cases scenarios lane highway.


2006 ◽  
Vol 188 (12) ◽  
pp. 4522-4530 ◽  
Author(s):  
Catherine L. Lawson ◽  
Brian H. Yung ◽  
Alan G. Barbour ◽  
Wolfram R. Zückert

ABSTRACT Vsp surface lipoproteins are serotype-defining antigens of relapsing fever spirochetes that undergo multiphasic antigenic variation to allow bacterial persistence in spite of an immune response. Two isogenic serotypes of Borrelia turicatae strain Oz1 differ in their Vsp sequences and in disease manifestations in infected mice: Vsp1 is associated with the selection of a neurological niche, while Vsp2 is associated with blood and skin infection. We report here crystal structures of the Vsp1 dimer at 2.7 and 2.2 Å. The structures confirm that relapsing fever Vsp proteins share a common helical fold with OspCs of Lyme disease-causing Borrelia. The fold features an inner stem formed by highly conserved N and C termini and an outer “dome” formed by the variable central residues. Both Vsp1 and OspC structures possess small water-filled cavities, or pockets, that are lined largely by variable residues and are thus highly variable in shape. These features appear to signify tolerance of the Vsp-OspC fold for imperfect packing of residues at its antigenic surface. Structural comparison of Vsp1 with a homology model for Vsp2 suggests that observed differences in disease manifestation may arise in part from distinct differences in electrostatic surface properties; additional predicted positively charged surface patches on Vsp2 compared to Vsp1 may be sufficient to explain the relative propensity of Vsp2 to bind to acidic glycosaminoglycans.


Author(s):  
Masaya Kaneko ◽  
Takahiro Hasegawa ◽  
Yuji Yamauchi ◽  
Takayoshi Yamashita ◽  
Hironobu Fujiyoshi ◽  
...  

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