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2. 发明授权

US6137531A Detecting device for road monitoring 失效
标题翻译：道路监控检测装置
公开(公告)号：US6137531A
公开(公告)日：2000-10-24
申请号：US925938
申请日：1997-09-08
申请人： Yoshiharu Kanzaki , Mikihiro Okamoto , Isao Tofuku , Hiroshi Haruyama
发明人： Yoshiharu Kanzaki , Mikihiro Okamoto , Isao Tofuku , Hiroshi Haruyama
IPC分类号： G01V8/10 , B60K31/00 , G01D21/02 , G01J3/46 , G06T1/00 , G06T7/00 , G08B21/00 , G08G1/00 , G08G1/04 , H04N7/18
CPC分类号： G06T7/2053 , B60K31/0008 , G01D21/02 , B60W2550/10 , B60W2550/20 , G06T2207/10016 , G06T2207/10024 , G06T2207/30236
摘要： A detecting device for road monitoring which detects traveling states of vehicles on a road (traffic stagnation, stopping of vehicles, etc.) or fallen objects on a road is provided. Luminance change detecting unit prepares background image data by taking a time average of luminance for each picture element, and detects image portions where inputted image data is different in luminance from the prepared background image data. Hue change detecting unit prepares background image data by taking a time average of hue for each picture element, and detects image portions where inputted image data is different in hue from the prepared background image data. Overlapping portion extracting and judging unit extracts overlapping portions between image portions detected by the luminance change detecting unit when it is in the daytime and illuminance is larger than a predetermined value and image portions detected by the hue change detecting unit at the same point of time, and judges the extracted overlapping portions to represent objects to be detected. Comprehensive portion extracting and judging unit extracts comprehensive portions covering image portions detected by the luminance change detecting unit when it is in the daytime and illuminance is smaller than a predetermined value and image portions detected by the hue change detecting unit at the same point of time, and judges the extracted comprehensive portions to represent objects to be detected.
摘要翻译：提供一种用于道路监测的检测装置，其用于检测道路上的车辆的行驶状态（交通停滞，车辆停止等）或道路上的物体的落下。亮度变化检测单元通过拍摄每个像素的亮度的时间平均来准备背景图像数据，并且从准备的背景图像数据中检测输入的图像数据的亮度不同的图像部分。色调变化检测单元通过拍摄每个图像元素的色相的时间平均来准备背景图像数据，并且检测输入的图像数据与准备的背景图像数据不同的图像部分。重叠部分提取和判断单元在白天和亮度大于预定值时提取由亮度变化检测单元检测的图像部分之间的重叠部分，并且在同一时间点由色相变化检测单元检测到图像部分，并且将所提取的重叠部分判断为要检测的对象。综合部分提取和判断单元提取在亮度变化检测单元处于白天并且照度小于预定值时检测到的图像部分的综合部分，并且由相同时间点由色相变化检测单元检测到的图像部分，并且判断所提取的综合部分来表示要检测的对象。

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