Passive shadows resulted from roadside buildings or trees and active shadows caused by moving vehicles, are one of the factors that arise errors in video based vehicle detection.
在基于视频图像的交通监视系统中，由路边建筑、树木等物体引起的静态阴影和由运动物体如车辆引起的运动阴影，是导致车辆检测错误的一大主要因素。
Finally, the loss of fault coverage due to the introduction of the parity tree is analyzed, and the detection of faults in the parity trees are described.
最后，分析了由于奇偶树的引入带来的故障覆盖率的损失及奇偶树中故障的检测。
Safety features including: identifying trees, rocks and obstacles, sensor equipped bumpers, mower lift detection and child lock.
安全装置有：识别树枝、石头、障碍物； 具有缓冲特征的传感器； 割草机升降装置以及儿童锁。
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