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公开(公告)号：US10691947B2
公开(公告)日：2020-06-23
申请号：US16328176
申请日：2017-09-21
发明人： Kazunari Iwanaga , Wataru Ito
IPC分类号： G06K9/00 , G06T7/194 , G06T7/11 , G06T7/246 , G08B21/24 , G06T7/20 , G06K9/62 , H04N7/18 , G08B13/196 , G06T7/00
摘要： An image monitoring system includes: a reference image generation unit generating a reference image serving as a reference image, based on an input image; a foreground extraction unit detecting, from the input image, a foreground region different from the reference image; a stationary region extraction unit extracting a stationary region from the foreground region; a feature quantity extraction unit extracting a feature quantity of the stationary region; a feature quantity recording unit recording feature quantities as a function of time; a stationary object detection unit clustering pixels, recorded feature quantities of which meet predetermined criteria, and detecting a stationary object; a left object determination unit determining whether the stationary object is a left object, based on a feature quantity of the stationary object and evaluation of the surrounding environment; and a left object management unit managing attributes of left objects, and issuing a report when a certain condition is met.
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公开(公告)号：US09589181B2
公开(公告)日：2017-03-07
申请号：US14771004
申请日：2014-02-18
发明人： Wataru Ito , Yohei Akimoto
IPC分类号： G06K9/60 , G06K9/00 , G08B13/196 , G06F17/30
CPC分类号： G06K9/00288 , G06F17/30247 , G06K9/00268 , G06K9/00295 , G06K9/00771 , G08B13/19613
摘要： Provided is a suspicious person detection method. First, a normal similar facial image search is carried out. Next, facial images, which are detected automatically from the input images and specified manually, are specified to be determined. Next, similar faces are searched for limited time on a time axis on the database. Next, the number of search results that distance between the features is lower than predetermined value is calculated and it is determined that the number of appearances is large and a possibility of a prowling person is high if the number of cases is large, and otherwise a possibility of prowling person is low. Last, a similarity between a facial image of a pre-registered residents and a facial image of a person whose number is large is calculated, and it is re-determined that the person is residents if the similarity is high, regardless of the determination.
摘要翻译： 提供了可疑人员检测方法。 首先，进行正常的相似面部图像搜索。 接下来，确定从输入图像中自动检测并手动指定的面部图像。 接下来，在数据库上的时间轴上搜索有限的时间相似的面。 接下来，计算特征之间的距离低于预定值的搜索结果的数量，并且如果情况数量大，则确定外观数量大并且徘徊者的可能性高，否则为 猥亵人的可能性很低。 最后，计算预登记居民的面部图像与数量大的人的面部图像之间的相似度，并且如果相似度高，则重新确定该人是居民，而不管确定。
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公开(公告)号：US10853949B2
公开(公告)日：2020-12-01
申请号：US16327745
申请日：2017-09-21
发明人： Yuichiro Komiya , Muneaki Yamaguchi , Hiroaki Nakakita , Kazunari Iwanaga , Junichi Togashi , Yohei Akimoto , Masaya Okada , Atsushi Sassa , Wataru Ito
摘要： The purpose of the present invention is to provide a technology which adaptively switches video analysis methods according to a congestion situation within a video, and which carries out a suitable video analysis by a limited computational volume. Provided is an image processing device 100, wherein a congestion estimation unit 102 estimates a congestion situation within a video which is acquired from an image input unit 101. A control unit 103 switches methods for video analysis according to the congestion situation. In a situation of low congestion, an image analysis unit for use in normal situations 105 carries out the video analysis by a basic method. In a situation of high congestion, an image analysis unit for use in congested situations 106 carries out a high-precision video analysis, such as an analysis which spans a plurality of frames.
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公开(公告)号：US10181168B2
公开(公告)日：2019-01-15
申请号：US15127243
申请日：2014-03-31
发明人： Wataru Ito
摘要： Disclosed is a system whereby it is possible to verify the safety of a person even if the person is not aware that the person is being searched for as a missing person. In this system, each verification requesting person who is searching for another person registers, in a database of a portal server (4), a set comprising a feature value of the face of the searched-for person and personal information (e.g., telephone number) about the searched-for person or the verification requesting person. A field server (2) constantly compares feature values of captured face images with the database, and if a close match is found between the feature value of a captured face image and the stored feature value of the face of a person, the field server (2) presents the registered personal information associated with that person to the person from which the captured face image was derived and requests verification from the latter person. Since the system is open to the public, the feature values stored in the database are protected by a template protection scheme. For example, random projections which differ with different locality-sensitive hash values of feature values are used so that it can be assumed that, in the vicinity of a target feature value, a local distance-preserving mapping is established between feature values and the corresponding protected feature values.
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公开(公告)号：US09704259B2
公开(公告)日：2017-07-11
申请号：US14779044
申请日：2014-03-14
发明人： Wataru Ito
CPC分类号： G06T7/246 , G06K9/00362 , G06K9/00771 , G06T7/12 , G06T7/168 , G06T2207/10016 , G06T2207/20061 , G06T2207/30196 , G06T2207/30232 , G06T2207/30241 , G06T2207/30242
摘要： A people counting device includes an edge extracting unit configured to extract an edge from a planar image of a target area, and a circle candidate detecting unit configured to detect a circle candidate included in the planar image based on the edge extracted by the edge extracting unit. The people counting device further includes a person determining unit configured to calculate a brightness gradient for each edge pixel constituting an edge of each circle candidate detected by the circle candidate detecting unit and determine that a circle candidate whose uniformity of brightness gradients for the edge pixels of the circle candidate is higher than a reference is a person's head portion, and a people counting unit configured to count the number of circle candidates determined to be a person's head portion by the person determining unit.
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公开(公告)号：US20150043775A1
公开(公告)日：2015-02-12
申请号：US14378388
申请日：2012-11-30
发明人： Miyuki Fujii , Wataru Ito
CPC分类号： G06K9/00771 , G06K9/00 , G06K9/00362 , G06T5/008 , G06T5/009 , G06T2207/10004 , G06T2207/20208 , G06T2207/30196 , G06T2207/30232 , G08B13/19604 , H04N7/18
摘要： A technique is proposed for enabling stable detection of an object even when the contrast of an image is lowered overall or partially.A preprocessing section 12 is added to the upstream stage of an object detecting processing section 13, and provides an obtained corrected image (image obtained by subjecting an input image to contrast enhancement) as an input image for the object detecting processing section 13. This facilitates the detection of the object even when the contrast of the entire screen is lowered due to fog or rain. Furthermore, the object detecting processing section 13 detects the object by using not only the corrected image from the preprocessing section 12 but also correction characteristic information 23 containing image characteristics regarding the correction (contrast enhancement). This attempts to reduce an influence of noises enhanced by the contrast enhancement.
摘要翻译： 即使当图像的对比度全部或部分地降低时，也提出了一种能够对物体进行稳定检测的技术。 将预处理部12添加到物体检测处理部13的上游侧，并将得到的校正图像（通过使输入图像进行对比度增强而获得的图像）作为对象检测处理部13的输入图像。这有助于 即使当整个屏幕的对比度由于雾或雨而降低时，物体的检测也是如此。 此外，对象检测处理部13不仅使用来自预处理部12的校正图像，还使用包含关于校正（对比度增强）的图像特性的校正特性信息23来检测对象。 这样做会降低由对比度增强增强的噪音的影响。
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公开(公告)号：US11017537B2
公开(公告)日：2021-05-25
申请号：US16490043
申请日：2017-04-28
发明人： Junichi Togashi , Wataru Ito
摘要： An abandoned item detection unit detects an abandoned item shown in an image taken by any of a plurality of imaging devices. A person identification unit specifies the image directly before or directly after the appearance of the abandoned item as an image of abandonment timing, and identifies at least one person shown in the image of abandonment timing as a target person. A person search unit searches for an image showing the target person from among the images respectively taken by any of the plurality of imaging devices. A result display unit outputs a display showing the movement of the target person on the screen of a user terminal on the basis of the imaging device that has taken each image showing the target person and the imaging time at which each image showing the target person was taken.
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公开(公告)号：US09877011B2
公开(公告)日：2018-01-23
申请号：US14766845
申请日：2014-03-14
发明人： Miyuki Fujii , Wataru Ito
CPC分类号： H04N13/275 , B60R1/00 , B60R2300/304 , B60R2300/50 , B60R2300/60 , G06T3/00 , G06T15/20 , H04N7/183 , H04N13/257 , H04N13/296
摘要： An image display apparatus for converting an image into a virtual viewpoint image so that the image of an object is not distorted.
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公开(公告)号：US09443150B2
公开(公告)日：2016-09-13
申请号：US14378388
申请日：2012-11-30
发明人： Miyuki Fujii , Wataru Ito
IPC分类号： G06K9/00 , G06T5/00 , G08B13/196 , H04N7/18
CPC分类号： G06K9/00771 , G06K9/00 , G06K9/00362 , G06T5/008 , G06T5/009 , G06T2207/10004 , G06T2207/20208 , G06T2207/30196 , G06T2207/30232 , G08B13/19604 , H04N7/18
摘要： A technique is proposed for enabling stable detection of an object even when the contrast of an image is lowered overall or partially.A preprocessing section 12 is added to the upstream stage of an object detecting processing section 13, and provides an obtained corrected image (image obtained by subjecting an input image to contrast enhancement) as an input image for the object detecting processing section 13. This facilitates the detection of the object even when the contrast of the entire screen is lowered due to fog or rain. Furthermore, the object detecting processing section 13 detects the object by using not only the corrected image from the preprocessing section 12 but also correction characteristic information 23 containing image characteristics regarding the correction (contrast enhancement). This attempts to reduce an influence of noises enhanced by the contrast enhancement.
摘要翻译： 将预处理部12添加到物体检测处理部13的上游侧，并将得到的校正图像（通过使输入图像进行对比度增强而获得的图像）作为对象检测处理部13的输入图像。这有助于 即使当整个屏幕的对比度由于雾或雨而降低时，物体的检测也是如此。 此外，对象检测处理部13不仅使用来自预处理部12的校正图像，还使用包含关于校正（对比度增强）的图像特性的校正特性信息23来检测对象。 这样做会降低由对比度增强增强的噪音的影响。
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公开(公告)号：US20140320682A1
公开(公告)日：2014-10-30
申请号：US14363408
申请日：2012-11-29
发明人： Munemitsu Kuwabara , Wataru Ito , Madoka Tanaka
CPC分类号： H04N5/357 , G06T5/003 , G06T7/248 , G06T7/269 , G06T2207/10004 , G06T2207/20201 , H04N5/23229 , H04N5/23254 , H04N5/23267
摘要： An image processing device 102 includes a background-object reference image estimation unit 1, a background-object optical flow calculation unit 2, moving-object reference image estimation units 4 and 9, moving-object heat-haze fluctuation calculation units 5, 6, 7, 10 and 11, and a motion correction unit 3. The image processing device 102 is configured such that optical flow of a background object and heat-haze fluctuation of a moving-object are obtained from input images inputted in succession, partial images of the input images are moved so as to cancel the heat-haze fluctuation, and a corrected image, which has the heat-haze fluctuation upon the background object and the moving-object within the input images removed, is generated.
摘要翻译： 图像处理装置102包括背景物体参照图像估计单元1，背景物体光流计算单元2，运动物体参考图像估计单元4和9，移动物体加热雾度波动计算单元5,6， 7,10和11以及运动校正单元3.图像处理装置102被配置为使得背景物体的光流和运动物体的热雾波动由连续输入的输入图像获得，部分图像 移动输入图像以消除热霾波动，并且产生在去除输入图像内的背景物体和移动物体之间具有热霾波动的校正图像。
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