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1. 发明公开

EP0986036A3 Method of updating reference background image, method of detecting entering objects and system for detecting entering objects using the methods 审中-公开
标题翻译：，通过使用相同的检测对象进入和系统用于检测进入的对象中的方法，用于更新参考背景图像的方法
公开(公告)号：EP0986036A3
公开(公告)日：2003-08-13
申请号：EP99117441.8
申请日：1999-09-08
申请人： HITACHI DENSHI KABUSHIKI KAISHA
发明人： Ito, Wataru , Yamada, Hiromasa , Ueda, Hirotada
IPC分类号： G08B13/194 , G06T7/20
CPC分类号： G08B13/19602 , G08B13/19604 , G08B13/19691
摘要： A method of updating a reference background image used for detecting objects entering an image pickup view field based on the binary image generated from the difference between an input image and the reference background image of the input image. The image pickup view field is divided into a plurality of view field areas (201), and a reference background image corresponding to each of the fixed divided view field areas is updated (204). An entering object detection apparatus using this method has an input image processing unit including an image memory (603) storing an input image from an image input unit, a program memory (606) storing the program for activating the entering object detecting unit, a work memory (604) and a central processing unit (605) activating the entering object detecting unit in accordance with the program. The processing unit has an entering object detecting unit (104) determining intensity difference for each pixel between the input image and the reference background image not including an entering object to be detected and detecting an area with the difference larger than a predetermined threshold as an entering object, a dividing unit (201) dividing the image pickup view field of the image input unit into a plurality of view field areas, an image change detecting unit (202) detecting the change of the image in each of the divided view field areas, and a reference background image updating unit (204) updating each portion of the reference background image corresponding to each of the divided view field areas associated with the portion of the input image free of the image change, wherein the entering object detecting unit detects entering objects based on the updated reference background image.

2. 发明公开

EP0977437A3 Method of distinguishing a moving object and apparatus of tracking and monitoring a moving object 审中-公开
标题翻译：方法来区分用于跟踪移动物体和装置以及监视移动物体
公开(公告)号：EP0977437A3
公开(公告)日：2007-11-21
申请号：EP99114219.1
申请日：1999-07-26
申请人： HITACHI DENSHI KABUSHIKI KAISHA
发明人： Ito, Wataru , Ueda, Hirotada , Yamada, Hiromasa
IPC分类号： H04N7/18 , G08B13/194 , G06T7/20
CPC分类号： G08B13/1961 , G01S3/783 , G01S3/7865 , G06T7/254 , G08B13/19602 , G08B13/19606 , G08B13/19608
摘要： A moving object recognition method for recognizing a specified moving object in an input image signal in distinction from other objects, and a moving object tracking and monitoring apparatus using the method. One or more moving objects in the input image signal are sequentially detected by the subtraction method (101 to 104), the physical quantities of the detected moving objects are sequentially stored (110) in a memory (604). Based on this physical quantities, one or more loci of the detected moving objects are determined (106). A group of physical quantities associated with each locus are stored (107) in a memory (604) as correlated information series of a moving object. Based on the information series thus stored, at least one of a plurality of classification methods is applied to each moving object for determining whether the moving object belongs to the specified moving object or other than the specified moving object (201, 301, 402). Thus, a detected moving object is recognized as to whether it is a specified moving object or not. A plurality of the classification methods include a method based on the continuity of the locus of a detected moving object, a method based on the smoothness of position change of the detected moving object and a method based on the size of the detected moving object.
摘要翻译：在输入图像信号中区分从其他对象认识指定移动对象，以及使用该方法的移动对象跟踪和监视装置的移动物体的识别方法。输入图像信号中的一个或多个移动物体依次被减法方法（101〜104）检测到时，检测到的运动物体的物理量被顺序地存储（110）在存储器中（604）。在此基础上的物理量，所检测的移动物体中的一个或多个基因座是确定性的开采（106）。 A组与每个轨迹相关联的物理量的被存储（107）在存储器中（604）作为关联信息系列的运动物体的。根据这样存储的信息序列，分类方法的多个的至少一个被施加到每个移动物体确定性采矿无论运动对象属于比指定的移动对象（201，301，402）指定的移动物体或其他。因此，检测到的运动对象被识别其是否是一个指定的移动物体或没有。的分类方法的多个包括基于检测到的运动对象，基于所检测的移动物体的位置的变化，并根据检测到的移动对象的大小的方法的光滑度的方法的轨迹的连续性的方法。

3. 发明公开

EP0986036A2 Method of updating reference background image, method of detecting entering objects and system for detecting entering objects using the methods 审中-公开
标题翻译：，通过使用相同的检测对象进入和系统用于检测进入的对象中的方法，用于更新参考背景图像的方法
公开(公告)号：EP0986036A2
公开(公告)日：2000-03-15
申请号：EP99117441.8
申请日：1999-09-08
申请人： HITACHI DENSHI KABUSHIKI KAISHA
发明人： Ito, Wataru , Yamada, Hiromasa , Ueda, Hirotada
IPC分类号： G08B13/194
CPC分类号： G08B13/19602 , G08B13/19604 , G08B13/19691
摘要： A method of updating a reference background image used for detecting objects entering an image pickup view field based on the binary image generated from the difference between an input image and the reference background image of the input image. The image pickup view field is divided into a plurality of view field areas (201), and a reference background image corresponding to each of the fixed divided view field areas is updated (204). An entering object detection apparatus using this method has an input image processing unit including an image memory (603) storing an input image from an image input unit, a program memory (606) storing the program for activating the entering object detecting unit, a work memory (604) and a central processing unit (605) activating the entering object detecting unit in accordance with the program. The processing unit has an entering object detecting unit (104) determining intensity difference for each pixel between the input image and the reference background image not including an entering object to be detected and detecting an area with the difference larger than a predetermined threshold as an entering object, a dividing unit (201) dividing the image pickup view field of the image input unit into a plurality of view field areas, an image change detecting unit (202) detecting the change of the image in each of the divided view field areas, and a reference background image updating unit (204) updating each portion of the reference background image corresponding to each of the divided view field areas associated with the portion of the input image free of the image change, wherein the entering object detecting unit detects entering objects based on the updated reference background image.
摘要翻译：更新用于检测对象输入基于来自之间对输入图像和输入图像的参考背景图像的差异所产生的二值图像上的图像拾取视野的参考背景图像的方法。图像拾取视野分为视场区域（201）的多个，并且参考背景图像对应于每个划分的固定视场区域的被更新（204）。关于使用该方法进入物体检测装置具有于输入图像处理单元包括：从图像输入单元，存储程序，用于激活所述进入对象检测单元，一个工作的程序存储器（606）输入的图像的存储的图像存储器（603）存储器（604）和激活所述进入对象检测在雅舞蹈单元有该程序的中央处理单元（605）。该处理单元具有在进入对象检测单元（104）确定的开采强度对输入图像和不包括在进入对象的参考背景图像之间的每个像素与所述差大于预定阈值大的差被检测和检测区域的，以进入对象，分割单元（201）将所述图像输入单元的图像拾取视野进入视场区，一个多元化的图像变化检测部（202）检测所述图像的每一个分割的视场区域的变化，和参考背景图像更新部（204）更新所述参考背景图像对应于与自由图像变化的输入图像的所述部分相关联的分割视场区域的每个部分，worin所述进入对象检测单元检测进入的对象基于更新参考背景图像上。

4. 发明公开

EP0977437A2 Method of distinguishing a moving object and apparatus of tracking and monitoring a moving object 审中-公开
标题翻译：方法来区分用于跟踪移动物体和装置以及监视移动物体
公开(公告)号：EP0977437A2
公开(公告)日：2000-02-02
申请号：EP99114219.1
申请日：1999-07-26
申请人： HITACHI DENSHI KABUSHIKI KAISHA
发明人： Ito, Wataru , Ueda, Hirotada , Yamada, Hiromasa
IPC分类号： H04N7/18
CPC分类号： G08B13/1961 , G01S3/783 , G01S3/7865 , G06T7/254 , G08B13/19602 , G08B13/19606 , G08B13/19608
摘要： A moving object recognition method for recognizing a specified moving object in an input image signal in distinction from other objects, and a moving object tracking and monitoring apparatus using the method. One or more moving objects in the input image signal are sequentially detected by the subtraction method (101 to 104), the physical quantities of the detected moving objects are sequentially stored (110) in a memory (604). Based on this physical quantities, one or more loci of the detected moving objects are determined (106). A group of physical quantities associated with each locus are stored (107) in a memory (604) as correlated information series of a moving object. Based on the information series thus stored, at least one of a plurality of classification methods is applied to each moving object for determining whether the moving object belongs to the specified moving object or other than the specified moving object (201, 301, 402). Thus, a detected moving object is recognized as to whether it is a specified moving object or not. A plurality of the classification methods include a method based on the continuity of the locus of a detected moving object, a method based on the smoothness of position change of the detected moving object and a method based on the size of the detected moving object.

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