1) Matte/Shadow
投影材质
2) projection drawings
投影教材
1.
Based on modern education theory,Cognitive theory and the new demand to teachers,together with the consideration of the contents of physics teaching methodology,through making projection drawings,bettering the classroom situation for physics methodology teaching,the qualities of would-be teacher will be improved.
从现代教育理论和认识论的观点出发 ,根据现代化教师队伍的培养要求 ,结合物理教学法课的内容特点 ,开展自制投影教材活动 ,优化教法课的微环境 ,提高“未来教师”的素质 。
3) projection properties
投影性质
1.
This paper represents projection properties of roofs, walls and shadows of the buildings with right angle and flat roofs in 3D scene in the projection process of aerial images and educes some related computation formulae of two-dimensional geometric properties.
研究了三维现实场景中直角平顶房屋的屋顶、墙体、阴影在航空摄影时的投影性质,以及它们在航空影像中相应的二维几何特征。
2.
Using a set of so-called J-characteristic values, we also derive some new results on orthogonal arrays and give an easy proof to Proposition 2 in reference [1], which characterizes the important projection properties of orthogonal arrays.
借助于一系列所谓的J $特征值,推导出了正交阵列的一些新的结果,并给出了文献1中性质2的一个简单证明,性质2本身刻划了正交正列的重要的投影性质。
4) ground projection point of center of mass
质量中心投影点
5) Shading Groups and Materials
阴影组和材质
6) projection
[英][prə'dʒekʃn] [美][prə'dʒɛkʃən]
投影
1.
Emulate-holographic mathematic treatment of parallel projection applied in mining engineering visualization;
平行投影在矿业工程可视化中仿全息数学处理
2.
New method for multi-attribute decision making based on vague set——projection method;
基于Vague集的多属性决策新方法——投影法
3.
Surveying Projection of Over-head Point & Line Using Intersecting Line of Two Vertical Plane;
垂面交线法悬点与悬线投影测量研究
补充资料：滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中，无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution)，即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正，然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单，速度快，所得图像逼真、清晰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条