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公开(公告)号：US20140160308A1
公开(公告)日：2014-06-12
申请号：US14179809
申请日：2014-02-13
Applicant: AXIS AB
Inventor： Carl-Axel ALM , Stefan LUNDBERG , Willy SAGEFALK
IPC: H04N5/232
CPC classification number: H04N5/23203 , G02B6/3604 , H04N5/2251
Abstract: A pan-tilt camera is arranged to include a camera head, a stationary unit, an intermediate member arranged between the camera head and the stationary unit, a first rotary joint rotatably connecting the camera head to the intermediate member, and a second rotary joint, rotatably connecting the intermediate member to the stationary unit. A communication path is provided between the camera head and the stationary unit, including an optical waveguide arranged between the camera head and the stationary unit. The optical waveguide has a first end positioned at the first rotary joint to receive light from the camera head through the first rotary joint. The other end of the waveguide is positioned at the second rotary joint and is arranged to send light to the stationary unit through the second rotary joint.
Abstract translation: 俯仰摄像机被配置为包括相机头，固定单元，布置在相机头和固定单元之间的中间构件，将照相机头可旋转地连接到中间构件的第一旋转接头和第二旋转接头， 将中间构件可旋转地连接到固定单元。 在相机头和固定单元之间提供通信路径，包括布置在相机头和固定单元之间的光波导。 光波导具有位于第一旋转接头处的第一端，以通过第一旋转接头接收来自照相机头的光。 波导的另一端位于第二旋转接头处，并且布置成通过第二旋转接头将光发送到固定单元。
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Patent Agency Ranking
公开(公告)号：US20220182591A1
公开(公告)日：2022-06-09
申请号：US17528669
申请日：2021-11-17
Applicant: Axis AB
Inventor： Carl-Axel ALM , Stefan LUNDBERG
Abstract: An image processing device a camera and a method for of encoding images captured by a camera are disclosed. For each image of an image sequence captured by the camera, the image is pre-processed by filtering the image by applying a privacy filter, the privacy filter being configured to distort the image in such a way that privacy is achieved in the filtered image, and, for at least a subset of the filtered images, by colour revising the filtered image by changing colour of pixels of a plurality of scattered areas of the filtered image such that a respective colour of one or more pixels of each area of the plurality of scattered areas represents one or more original colours of one or more pixels before filtering at a location of that area in the filtered image. The pre-processed images are then encoded into an encoded video stream.
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公开(公告)号：US20210409573A1
公开(公告)日：2021-12-30
申请号：US17349939
申请日：2021-06-17
Applicant: Axis AB
Inventor： Carl-Axel ALM , Håkan ARDÖ , Raphael TELLER , Song YUAN , Tim BORGLUND
Abstract: A method for anonymizing a digital colour image comprising obtaining the digital colour image, and applying a linear random function to a respective colour vector representing colour components of a respective pixel of the digital colour image to obtain a monochrome image. The linear random function varies over the pixels of the digital colour image, and is further dependent on at least one random parameter.
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公开(公告)号：US20220201253A1
公开(公告)日：2022-06-23
申请号：US17524063
申请日：2021-11-11
Applicant: Axis AB
Inventor： Stefan LUNDBERG , Carl-Axel ALM
Abstract: There is provided a camera and a method therein for facilitating installation of the camera. The method comprises capturing a video stream of a scene when the camera is installed with a first FOV, which scene comprises an object. A size in the video stream of at least one part of the object is estimated. As long as the estimated size is above a first threshold and below a second threshold, providing a first, edge-filtered, version of the video stream to secure privacy of the object. In response to the estimated size being above the second threshold indicating that the privacy is at risk of being revealed, entering an enhanced secure privacy mode comprising generating an alert to prompt an installer to re-install the camera with a second FOV different from the first FOV, and disabling provision of the first, edge-filtered, version of the video stream.
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公开(公告)号：US20210195133A1
公开(公告)日：2021-06-24
申请号：US17070939
申请日：2020-10-15
Applicant: Axis AB
Inventor： Carl-Axel ALM
IPC: H04N5/3745 , H04N5/378 , G06K9/00
Abstract: The present invention discloses a method of injecting additional data in one or more image sensor frames in an image sensor device. The method comprises: providing (801) additional data in the form of a numeric sequence, controlling (802) the lengths of subsequent blanking intervals in one or more image sensor frames to represent the numeric sequence, and transmitting the one or more image sensor frames from the image sensor device. The one or more image sensor frames may be transmitted to an image processor (12, 72). Examples of image processors (12, 72) and a system (1, 7) comprising an image processor (12, 72) are also disclosed.
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公开(公告)号：US20160119553A1
公开(公告)日：2016-04-28
申请号：US14887949
申请日：2015-10-20
Applicant: Axis AB
Inventor： Carl-Axel ALM , Stefan LUNDBERG , Johan WENNERSTEN
CPC classification number: H04N5/272 , G06K9/00771 , G06K9/3241 , G06T7/20 , G06T2207/10016 , G08B13/19667 , G08B13/19682 , G08B13/19691 , G08B13/19697 , H04N7/183 , H04N7/188
Abstract: The present application relates to methods and systems for including sensor data from a sensor unit (108) as an overlay (204) in a video stream from a camera (106) monitoring a scene (200). The overlay has overlay regions (206a-f) corresponding to scene regions (202a-f), and when the sensor unit detects motion in a scene region a graphical element (208) is added to the overlay in the overlay region corresponding to that scene region. Video analytics procedures, such as object feature detection or motion or change detection may then be used to determine if detection has been made in a specific scene region by both the camera and the sensor unit.
Abstract translation: 本申请涉及用于将来自传感器单元（108）的传感器数据作为监视场景（200）的相机（106）的视频流中的覆盖（204）的方法和系统。 覆盖层具有对应于场景区域（202a-f）的覆盖区域（206a-f），并且当传感器单元检测到场景区域中的运动时，图形元素（208）被添加到对应于该场景的覆盖区域中的覆盖层 地区。 然后可以使用诸如对象特征检测或运动或变化检测的视频分析程序来确定在相机和传感器单元两者中是否在特定场景区域中进行检测。
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