Static choice in the presence of unforeseen contingencies
Static choice in the presence of unforeseen contingencies
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出现不可预见的突发事件时的静态选择
DOI：
10.7551/mitpress/2581.003.0015
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
David M. Kreps
中科院分区：
文献类型：
--
作者：
David M. Kreps
一种自动立体测绘系统，用于从立体图像中导出地形信息，该立体图像由从稍微不同的角度拍摄的相同地形的两张照片的叠加投影产生。一种扫描器，包括在X、Y和Z坐标中可控制的Nipkow盘，提供线扫描，用于在立体图像的范围上以增量为基础导出视频信息。死区时间补偿装置被用来用更接近于在正常行扫描期间获得的视频信号的信号来替换在扫描行之间出现的不想要的瞬态视频信号。然后将得到的补偿视频信号加到一个相关器上，以导出误差信号，该误差信号用于根据立体图像的仰角和斜率自动控制扫描器的仰角和倾斜度。照相打印机耦合到扫描器，用于在相应的阴极射线管上自动产生立体图像的正投影再现和高度轮廓图。
An automatic stereomapping system for deriving topographical information from a stereoscopic image produced by the superposed projections of two photographs of the same terrain taken from slightly different angles. A scanner including a Nipkow disc controllable in X, Y, and Z coordinates provides line scanning for deriving video information on an incremental basis over the extent of the stereo image. Dead-time compensation means are employed to replace the unwanted transient video signals occuring between scan lines with signals more closely approximating the video signals obtained during normal line scanning. The resulting compensated video signals are then applied to a correlator for deriving error signals which are used to automatically control the elevation and tilt of the scanner in accordance with the elevation and slope of the stereo image. A photographic printer is coupled to the scanner for automatically producing on respective cathode ray tubes an orthographic reproduction and an altitude profile chart of the stereoscopic image.