The effect of under-exposure on the performance of gray scale projection algorithm is studied by synthetic and real video experiments.
通过合成视频实验探讨、实际视频实验论证相结合的研究方法，探讨曝光量不足对灰度投影算法性能的影响。
2
Results Optimal tube voltage and milliampere parameters of the full-length leg projection was acquired in terms of the distribution of spatial resolution under different parameters of exposure.
结果根据不同摄影参数下的空间分辨率分布情况，获取优化的CR下肢全长摄影的管电压和毫安量参数。
3
Plate projection system: a plat exposure system which works by projecting the image from microfilm or compact roll film rather than by the same-size one-to-one contact printing of films.