公开(公告)号：EP0744726A2

公开(公告)日：1996-11-27

申请号：EP96111617.5

申请日：1991-04-26

申请人： HITACHI, LTD.

发明人： Takatou, Masao ,  Takahashi, Kazunori ,  Hamada, Nobuhiro ,  Kitamura, Tadaaki ,  Kikuchi, Kuniyuki ,  Takenaga, Hiroshi ,  Morooka, Yasuo

IPC分类号： G08G1/04 ,  G08G1/08

CPC分类号： G08G1/08 ,  G08G1/04

摘要： A traffic flow measuring apparatus comprises image input means (101a-d) for taking images of scenes near a crossing (50), image processing means (100) for processing said images, extracting possible vehicles and providing characteristic quantities of said possible vehicles and measuring means for determining position data of vehicles based on said characteristic quantities obtained from said image processing means (100), tracking said vehicles by use of said position data and calculating the number of vehicles in at least one direction in which vehicles run, means for measuring ( m 2 - 3m + 1 ) of the number of vehicles in a moving direction at an m-way crossing and means for calculating the remaining (2k - 1) number of vehicles in the moving direction by use of said measurement value and the numbers of inflowing and outflowing vehicles of each of said roads.

摘要翻译： 交通流量测量装置包括用于拍摄交叉点附近的场景的图像的图像输入装置（101a-d），用于处理所述图像的图像处理装置（100），提取可能的车辆并提供所述可能的车辆的特征量并测量 用于基于从所述图像处理装置（100）获得的所述特征量来确定车辆的位置数据的装置，通过使用所述位置数据跟踪所述车辆并计算车辆行驶的至少一个方向上的车辆数量;用于测量的装置 （m 2 -3 m + 1），以及用于通过使用所述测量值计算移动方向上的剩余（2k-1）个车辆的装置，以及 每条道路的流入和流出车辆的数量。

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：EP0454166B1

公开(公告)日：1997-01-29

申请号：EP91106852.6

申请日：1991-04-26

申请人： HITACHI, LTD.

发明人： Takatou, Masao ,  Takahashi, Kazunori ,  Hamada, Nobuhiro ,  Kitamura, Tadaaki ,  Kikuchi, Kuniyuki ,  Takenaga, Hiroshi ,  Morooka, Yasuo

IPC分类号： G08G1/04 ,  G08G1/08

CPC分类号： G08G1/08 ,  G08G1/04

公开(公告)号：EP0744726A3

公开(公告)日：1996-12-18

申请号：EP96111617.5

申请日：1991-04-26

申请人： HITACHI, LTD.

发明人： Takatou, Masao ,  Takahashi, Kazunori ,  Hamada, Nobuhiro ,  Kitamura, Tadaaki ,  Kikuchi, Kuniyuki ,  Takenaga, Hiroshi ,  Morooka, Yasuo

IPC分类号： G08G1/04 ,  G08G1/08

CPC分类号： G08G1/08 ,  G08G1/04

摘要： A traffic flow measuring apparatus comprises image input means (101a-d) for taking images of scenes near a crossing (50), image processing means (100) for processing said images, extracting possible vehicles and providing characteristic quantities of said possible vehicles and measuring means for determining position data of vehicles based on said characteristic quantities obtained from said image processing means (100), tracking said vehicles by use of said position data and calculating the number of vehicles in at least one direction in which vehicles run, means for measuring ( m 2 - 3m + 1 ) of the number of vehicles in a moving direction at an m-way crossing and means for calculating the remaining (2k - 1) number of vehicles in the moving direction by use of said measurement value and the numbers of inflowing and outflowing vehicles of each of said roads.

摘要翻译： 一种交通流量测量装置，包括：图像输入装置（101a-d），用于拍摄十字路口（50）附近的场景图像;图像处理装置（100），用于处理所述图像;提取可能的车辆并提供所述可能车辆的特征量; 用于基于从所述图像处理装置（100）获得的所述特征量来确定车辆的位置数据的装置，通过使用所述位置数据来跟踪所述车辆并且计算在车辆行驶的至少一个方向上的车辆数量，用于测量的装置 （m-3m + 1），以及利用所述测量值和所述测量值计算移动方向上剩余的（2k-1）个车辆的数量的装置 每条所述道路的流入和流出车辆。

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.