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公开(公告)号：US09794517B2
公开(公告)日：2017-10-17
申请号：US14779497
申请日：2014-02-12
发明人： Jae Ryong Ha , Ki Bum Park
摘要： A privacy masking method is provided. The privacy masking method is configured to accurately position a mask area on a privacy area in a captured image despite any kind of camera movement. Therefore, even if a camera makes any one or more of pan, tilt, and zoom movements, the present invention can accurately match a mask area with a privacy area.
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公开(公告)号：US09202115B2
公开(公告)日：2015-12-01
申请号：US13795076
申请日：2013-03-12
发明人： Ki Bum Park
CPC分类号： G06K9/00624 , G08B17/125
摘要： Provided is an event detection system including an image acquisition unit that acquires an image of a predetermined region, an image analysis unit that obtains focus data including a focus distance and a focus gain of the acquired image, an event occurrence determination unit that determines based on the focus data whether an event has occurred, and an alarm generation unit that generates an alarm signal according to an event signal transmitted from the event occurrence determination unit.
摘要翻译： 提供一种事件检测系统，包括获取预定区域的图像的图像获取单元，获取包括获取图像的聚焦距离和聚焦增益的焦点数据的图像分析单元，基于 聚焦数据是否已经发生，以及报警产生单元，其根据从事件发生确定单元发送的事件信号产生报警信号。
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公开(公告)号：US11889185B2
公开(公告)日：2024-01-30
申请号：US17056815
申请日：2019-05-24
发明人： Dong Jin Park , Dae Bong Kim , Young Sang Kwon , Ki Bum Park , Joon Chan Park , Young Sub Kim
摘要： A monitoring system includes a camera module configured to photograph a subject, a laser distance sensor configured to sense a distance to the subject, the laser distance sensor being arranged in a line with the camera module, and a processor configured to acquire a first angle and a first sensing value of the laser distance sensor in response to an event, calculate a first distance between the camera module and the subject by using the first angle and the first sensing value, calculate a second angle by using the first distance, a laser angle of view of the laser distance sensor, and a laser angle of view length of the laser distance sensor, rotate the laser distance sensor up to the second angle when a difference between the first angle and the second angle exceeds a predetermined range, and acquire a second sensing value of the laser distance sensor.
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公开(公告)号：US10904445B2
公开(公告)日：2021-01-26
申请号：US16493055
申请日：2017-06-27
发明人： Dae Bong Kim , Young Sang Kwon , Ki Bum Park
IPC分类号： H04N5/232
摘要： A zoom tracking method performed by a control unit of a zoom camera includes operations (a) through (c). In operation (a), the control unit determines a focusing progress state at a time when a zooming start signal is received. In operation (b), the control unit narrows an estimated range of a subject distance or estimates the subject distance, according to the focusing progress state. In operation (c), the control unit performs focusing for a zoom magnification according to the narrowed estimated range or the estimated subject distance.
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