There was a model of celestial sphere when the ancients observed the sky with the naked eye.
古人裸眼目视观测天象时亦有天球模型,通过天球模型的建立,按1尺=1度的换算标准,可以确定“丈、尺、寸”天象记录的几何意义,并对“大如X”形式的记录进行尺度或亮度的量化,最后将两种记录统一在一个系统中。
Compared with the national standard method, the visual colorimetry with nitrite test paper has a series of features, such as low-cost, convenient-measuring, convenient-phore, and can be suitable for semi-quantitative analysis.
以中速定性滤纸作为试纸用纸的材料,目视比色卡是选用1。
It established a method of the determination of lead in water by concentration visual colorimetry, with simplified operation and good quality of selection.
利用铅的碘络阴离子可与孔雀石绿形成有色不溶性三元缔合物的性质，建立了水中铅的富集目视比色检测方法，操作简便，选择性好，适于在广大基层单位的水污染监测中推广应用。
Research on binocular stereo vision sensor;
双目视觉测量传感器研究
A binocular stereo vision with laser system was developed.
设计研制了结构激光双目视觉传感器,该传感器加入结构激光,很好地解决了立体视觉中对应点的匹配问题。
In the dissertation, we firstly elaborate the optical measurement principium based on binocular stereo vision system, then prove the feasibility of this method in theory.
而后利用C++语言程序实现了双目视觉测量系统的相对位置、姿态测量的算法仿真。
The sandy land information was obtained by TM images from Landsat-5 and the dynamic variation of sandy land was analyzed by method of visual interpretation combined with field investigation in Poyang Lake region.
应用TM图像数据提取鄱阳湖地区沙地资源信息,采用目视解译的方法结合野外调查获得了鄱阳湖地区沙地资源的动态变化,得出1999年鄱阳湖地区的沙地面积为217。
From four aspects,which are the interpretation keys establishment,tone and color interpretation,pattern interpretation,and size and shape interpretation,this paper presents several issues concerning the visual interpretation of common remote sensing images,and suggests methods of increasing the interpretation speed and accuracy simultaneously.
从建立解译标志 ,色调和颜色解译 ,图型解译、大小和形状解译四个方面给出了常见遥感图像目视解译过程中值得注意的问题 ,同时给出提高解译速度和解译精度的方
In the light of Sichuan Province "The Gold Land Project" geological remote sensing comprehensive survey of the agricultural work programme,through the appropriate image processing and the establishment of accurate interpretation signs,using visual interpretation combining with man-machine interactive interpretation of the comprehensive interpretation methods to get more accurate i.
利用高分辨率的QuickBird影像数据,对遂宁市船山区新桥镇的土地利用类型进行调查,参照四川省"金土地工程"农业地质遥感综合调查工作方案,通过对图像进行适当的处理,建立较为准确的解译标志,采用人工目视解译结合人机交互式解译的综合判读方法,从图像上获取相对准确的土地利用类型信息。