1) LED-based projection
LED投影
1.
The classification of LED-based projection, its existing situation and coming tendency are discussed and evaluated.
概括论述和评价LED投影的分类、现状和趋势,LED投影光源的设计和应用前景,LED投影引擎的设计考虑。
2.
The future trends of LED-based projection are discussed including of product categories,improving output of light,application developing,combinin g mobile projector with other personal video products and industry chain of LEDbased projection.
本文述评移动投影的发展现状,讨论LED投影的发展趋势,包括产品范畴、光输出提高、应用发展、产品组合以及产业链。
2) LED projection engine
LED投影引擎
1.
The design and the application of LED light source,the design consideration of LED projection engine are also reviewed.
概括论述和评价LED投影的分类、现状和趋势,LED投影光源的设计和应用前景,LED投影引擎的设计考虑。
3) luminaire of led-based projection
LED投影光源
4) LED Projection Display
LED投影系统
5) LED shadowless lamp
LED无影灯
1.
The clean flow field in operating room which is equipped with no-lamp,traditional shadowless lamp or hollow LED shadowless lamp is modeled in three-dimensional and numerically simulated.
对空载、配置有传统无影灯及中空式LED无影灯的手术室的洁净气流流场三维建模并进行数值模拟。
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