公开(公告)号：EP0454166A2

公开(公告)日：1991-10-30

申请号：EP91106852.6

申请日：1991-04-26

申请人： HITACHI, LTD.

发明人： Takatou, Masao ,  Takenaga, Hiroshi ,  Morooka ,Yasuo , 

IPC分类号： G08G1/04 ,  G08G1/08

CPC分类号： G08G1/08 ,  G08G1/04

摘要： This invention relates to a method an apparatus for measuring traffic flows or in other words, the flows of vehicles, inside and near a crossing, and is directed to provide method and apparatus capable of extracting vehicles with a high level of accuracy.
Overlap of vehicles can be avoided by setting the field of a camera (101) not to a range from the inflow portion to the vicinity of center of the crossing but to a range from the center to the vicinity of the outflow portion (151) of the crossing. Accordingly, accuracy of traffic flow measurement can be improved.

摘要翻译： 本发明涉及一种用于测量交通流量或换句话说，车辆在交叉口内部和附近的流量的装置的方法，并且旨在提供能够以高精度提取车辆的方法和装置。 通过将摄像机（101）的场域设定在从流入部分到交叉口的中心附近的范围，但是从流出部分（151）的中心到附近的范围可以避免车辆的重叠 过境。 因此，可以提高交通流量测量的准确性。

公开(公告)号：EP0454166A3

公开(公告)日：1992-04-08

申请号：EP91106852.6

申请日：1991-04-26

申请人： HITACHI, LTD.

发明人： Takatou, Masao ,  Takenaga, Hiroshi ,  Morooka ,Yasuo , 

IPC分类号： G08G1/04 ,  G08G1/08

CPC分类号： G08G1/08 ,  G08G1/04

摘要： This invention relates to a method an apparatus for measuring traffic flows or in other words, the flows of vehicles, inside and near a crossing, and is directed to provide method and apparatus capable of extracting vehicles with a high level of accuracy. Overlap of vehicles can be avoided by setting the field of a camera (101) not to a range from the inflow portion to the vicinity of center of the crossing but to a range from the center to the vicinity of the outflow portion (151) of the crossing. Accordingly, accuracy of traffic flow measurement can be improved.