光照快速变化条件下的运动目标检测

为了解决视频监控系统中光照快速变化对运动目标检测产生的影响,提出一种新的运动目标检测方法。通过建立光照变化模型、色度差模型和亮度比模型来消除光照快速变化产生的影响。当光照快速变化的时候,背景像素和运动目标像素会被检测为前景像素。为了从检测到的前景像素中分离出运动目标像素和伪前景像素,分别建立色度差模型和亮度比模型来估计伪前景像素的亮度差和亮度比。色度差模型和亮度比模型的建立均依赖于光照变化模型。实验结果表明,本文的方法在光照快速变化的条件下具有较好的检测效果和检测实时性。

Submarine Pipeline Routing Risk Quantitative Analysis

A new method for submarine pipeline routing risk quantitative analysis was provided, and the study was developed from qualitative analysis to quantitative analysis.The characteristics of the potential risk of the submarine pipeline system were considered, and grey-mode identification theory was used. The study process was composed of three parts: establishing the indexes system of routing risk quantitative analysis, establishing the model of grey-mode identification for routing risk quantitative analysis, and establishing the standard of mode identification result. It is shown that this model can directly and concisely reflect the hazard degree of the routing through computing example, and prepares the routing selection for the future.