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[emuch.net]MDI_Jade_5教程
飞机的设计和制造一直是与性能优异的材料
联系在一起。20世纪60年代中期以碳纤维为增强体
的复合材料问世,70年代初开始应用于军用飞机
结构,80年代开始应用于民用飞机结构。复合材料
具有比强度高和比刚度高的独特优点,飞机结构
采用复合材料,其重量可相应减少20%~30%[1]。此
外,复合材料还具有可设计性强、疲劳性能好、耐
腐蚀、易于大面积整体成型、维护性好等优点。目
前,复合材料已经成为重要的飞机结构材料。(he design and manufacture of aircraft has been a material with excellent performance
Relate. In the mid 1960s, carbon fibers were used as reinforcements
The composite material came out and was used in military aircraft in the early 70s
The structure began to be applied to civil aircraft structures in 80s. Compound material
The aircraft structure has the unique advantages of high specific strength and high specific stiffness
The weight of the composites can be reduced by 20%~30%[1] accordingly. this
Besides, the composite material has the advantages of good design, good fatigue performance and good resistance to fatigue
Corrosion, easy to form a large area, good maintainability and so on. order
Before, composite materials have become important aircraft structural materials.)
- 2017-07-22 16:43:10下载
- 积分:1
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marked_image
数字水印技术的matlab实现,一个简单的水印算法,注意自己修改图片名(Digital watermark technology matlab to achieve a simple watermarking algorithm, pay attention to their own to modify the name of the picture)
- 2012-09-14 16:35:33下载
- 积分:1
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三维数据的法矢量 NormalAdjust
计算三维数据的法矢量并进行调整,里面包括了自己做的实验数据和结果(Three-dimensional data, vector calculation method and make adjustments, which includes the make their own experimental data and results)
- 2020-07-28 19:28:39下载
- 积分:1
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qulv
利用MATLAB处理图形图像,求曲线的曲率(Using MATLAB processing graphics demand curve curvature)
- 2012-11-01 15:50:46下载
- 积分:1
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visual-detecting-for-PCB
用VC++视觉检测程序,可以打开PCB板的照片文件,对其进行编辑、点运算、几何变换、正交变换、图像增强、形态变换、边缘与轮
廓检测、图像分析与复原、图像编码等功能。其中点运算包括图像反色、线性变换、阀值变换等功能;边缘检测包括Robert算子、
Sobel算子、Gauss-Laplace算子等;正交变换包括傅里叶变换、离散余弦变换、沃尔什变换;图像编码包括哈弗曼编码表、香农弗
曼编码表、行程编码、LZW编码等。
对于研究电子封装技术,视觉检测及电机精确控制的同学学习参考使用。(visual detecting for PCB.rar)
- 2020-09-28 17:27:44下载
- 积分:1
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src
说明: ORB-SLAM 基本延续了 PTAM 的算法框架,但对框架中的大部分组件都做了改进, 归纳起来主要有 4 点:
ORB-SLAM 选用了 ORB 特征, 基于 ORB 描述量的特征匹配和重定位, 都比 PTAM 具有更好的视角不变性。此外, 新增三维点的特征匹配效率更高, 因此能更及时地扩展场景。扩展场景及时与否决定了后续帧是否能稳定跟踪。ORBSLAM 加入了循环回路的检测和闭合机制, 以消除误差累积。系统采用与重定位相同的方法来检测回路(匹配回路两侧关键帧上的公共点), 通过方位图 (Pose Graph) 优化来闭合回路。PTAM 需要用户指定 2 帧来初始化系统, 2 帧间既要有足够的公共点, 又要有足够的平移量. 平移运动为这些公共点提供视差 (Parallax) , 只有足够的视差才能三角化出精确的三维位置。ORB-SLAM 通过检测视差来自动选择初始化的 2 帧。PTAM 扩展场景时也要求新加入的关键帧提供足够的视差, 导致场景往往难以扩展. ORB-SLAM 采用一种更鲁棒的关键帧和三维点的选择机制——先用宽松的判断条件尽可能及时地加入新的关键帧和三维点, 以保证后续帧的鲁棒跟踪; 再用严格的判断条件删除冗余的关键帧和不稳定的三维点,以保证 BA 的效率和精度。(Orb-slam basically continues the algorithm framework of PTAM, but most of the components in the framework have been improved, which mainly includes four points:)
- 2020-06-11 23:43:54下载
- 积分:1
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SSDA
matlab序贯相似性检测算法源代码。比模板相似性检测算法高效。(Sequential similarity detection algorithm matlab source code.Than template similarity detection algorithm is efficient.)
- 2020-10-22 10:37:23下载
- 积分:1
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affine-invariant-moment
仿射图像匹配时候可以用到,需要已知先验知识,然后直接调用就可以了(Affine image matching can be used when the need is known a priori knowledge, then you can directly call the)
- 2013-06-04 11:58:01下载
- 积分:1
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public_code_ST
结构张量来进行自适应正则化图像重建,单幅图像重建(Structure tensor adaptive regularized image reconstruction, a single image reconstruction)
- 2016-11-29 12:09:57下载
- 积分:1
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curves-movement-by-level-set-method
本程序采用水平集方法,演示了一个心形曲线在曲率力的作用下,逐渐消逝的过程。(This procedure uses the level set method, shows the process of a heart-shaped curve s disappearing under the force of the curvature.)
- 2020-12-21 16:09:08下载
- 积分:1