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公开(公告)号:US10070053B2
公开(公告)日:2018-09-04
申请号:US15483579
申请日:2017-04-10
Applicant: Axis AB
Inventor: Per Kannermark , Andreas Nilsson , Gustav Träff
CPC classification number: H04N5/23225 , G06K9/00771 , H04N5/144 , H04N5/23212 , H04N5/23219
Abstract: The present invention relates to a method and a camera for determining an image adjustment parameter. The method includes receiving a plurality of images representing an image view, detecting from the plurality of images events of a specific event type, identifying a location within the image view where the event of the specific type is present, determining a presence value of each of the identified locations, and determining an image adjustment parameter based on data from an adjustment location within the image view. The adjustment location is determined based on the presence value in each location of a plurality of locations within the image view.
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公开(公告)号:US20170214850A1
公开(公告)日:2017-07-27
申请号:US15483579
申请日:2017-04-10
Applicant: Axis AB
Inventor: Per Kannermark , Andreas Nilsson , Gustav Träff
CPC classification number: H04N5/23225 , G06K9/00771 , H04N5/144 , H04N5/23212 , H04N5/23219
Abstract: The present invention relates to a method and a camera for determining an image adjustment parameter. The method includes receiving a plurality of images representing an image view, detecting from the plurality of images events of a specific event type, identifying a location within the image view where the event of the specific type is present, determining a presence value of each of the identified locations, and determining an image adjustment parameter based on data from an adjustment location within the image view. The adjustment location is determined based on the presence value in each location of a plurality of locations within the image view.
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公开(公告)号:US09965835B2
公开(公告)日:2018-05-08
申请号:US14555803
申请日:2014-11-28
Applicant: Axis AB
Inventor: Fredrik Svensson , Per Kannermark , Andreas Nilsson
Abstract: A method and system are disclosed. The method may include determining a histogram of intensity values for pixels in image sensor data in which the histogram is bimodal. The method may include determining a breakpoint between the two modes. The histogram may include a first distribution of intensity values below the breakpoint and a second distribution of intensity values above the breakpoint. The method may include generating output intensity values. Generating output intensity values may include compressing the first distribution of intensity values of the pixels with intensity values below the breakpoint, stretching the second distribution of intensity values of the pixels with intensity values above the breakpoint, and generating an output image based on the output intensity values.
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公开(公告)号:US20160155218A1
公开(公告)日:2016-06-02
申请号:US14555803
申请日:2014-11-28
Applicant: Axis AB
Inventor: Fredrik Svensson , Per Kannermark , Andreas Nilsson
Abstract: A method and system are disclosed. The method may include determining a histogram of intensity values for pixels in image sensor data in which the histogram is bimodal. The method may include determining a breakpoint between the two modes. The histogram may include a first distribution of intensity values below the breakpoint and a second distribution of intensity values above the breakpoint. The method may include generating output intensity values. Generating output intensity values may include compressing the first distribution of intensity values of the pixels with intensity values below the breakpoint, stretching the second distribution of intensity values of the pixels with intensity values above the breakpoint, and generating an output image based on the output intensity values.
Abstract translation: 公开了一种方法和系统。 该方法可以包括确定直方图是双峰的图像传感器数据中的像素的强度值的直方图。 该方法可以包括确定两种模式之间的断点。 直方图可以包括低于断点的强度值的第一分布和高于断点的强度值的第二分布。 该方法可以包括产生输出强度值。 生成输出强度值可以包括以强度值低于断点压缩像素的强度值的第一分布,用强度值高于断点的像素的强度值的第二分布进行拉伸,以及基于输出强度生成输出图像 价值观。
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公开(公告)号:US09319668B2
公开(公告)日:2016-04-19
申请号:US14092136
申请日:2013-11-27
Applicant: AXIS AB
Inventor: Per Kannermark , Stefan Lundberg
CPC classification number: H04N17/002 , H04N5/23206 , H04N17/02
Abstract: The present invention relates to a method for generating real-time motion video. The method comprises receiving, at a video processing device, calibration data from a memory in an image sensor unit, the calibration data relating to properties of the image sensor unit. The video processing device receiving real-time raw image data from the image sensor unit via a communication cable and a communication protocol. The video processing device processing the real-time raw image data received from the image sensor unit, where the processing includes adjusting received image data based on at least part of the received calibration data and encoding the image data to a predetermined video format, and outputting the processed image data in real time.
Abstract translation: 本发明涉及一种用于产生实时运动视频的方法。 该方法包括在视频处理设备处接收来自图像传感器单元中的存储器的校准数据,所述校准数据与图像传感器单元的属性相关。 视频处理设备经由通信电缆和通信协议从图像传感器单元接收实时原始图像数据。 视频处理装置处理从图像传感器单元接收的实时原始图像数据,其中处理包括基于接收到的校准数据的至少一部分来调整接收到的图像数据并将图像数据编码为预定的视频格式,以及输出 经处理的图像数据实时。
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公开(公告)号:US08982228B2
公开(公告)日:2015-03-17
申请号:US14038360
申请日:2013-09-26
Applicant: AXIS AB
Inventor: Per Kannermark , Anders Johannesson
CPC classification number: H04N5/2357 , H04N5/3532 , H04N5/376
Abstract: An image acquisition device and a method for capturing image data is disclosed. The method comprises exposing an image sensor to light from a scene, selecting substantially all rows of sensor pixels in an image sensor in a substantially random order, starting an exposure period for each row of sensor pixels in the image sensor in the order the rows were selected, buffering the rows of sensor pixels comprised in an image frame until all rows of the image frame have registered image data for the presently captured image frame, and outputting image data representing the image frame by outputting image data from each row of sensor pixels.
Abstract translation: 公开了一种用于捕获图像数据的图像获取装置和方法。 该方法包括将图像传感器曝光到场景的光,基本上随机的顺序选择图像传感器中的基本上所有行的传感器像素,以图像传感器中的行的顺序为每行传感器像素开始曝光周期 选择,缓冲包括在图像帧中的传感器像素的行,直到图像帧的所有行都具有用于当前捕获的图像帧的已登记图像数据,并且通过从每行传感器像素输出图像数据来输出表示图像帧的图像数据。
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公开(公告)号:US08964113B2
公开(公告)日:2015-02-24
申请号:US14043595
申请日:2013-10-01
Applicant: AXIS AB
Inventor: Per Kannermark , Andreas Nilsson
CPC classification number: H04N5/23241 , H04N5/23206
Abstract: A monitoring camera is connected to an external power source. The external power source has an external maximum power level. Image data is being processed in a first processing state. The monitoring camera detects (202) an event and determines (206) a type of the detected event. An amount of energy in an energy accumulator is determined (208) in the monitoring camera. Based on the type of the event and based on the external maximum power level and based on the determined amount of energy in the energy accumulator, a second processing state is determined (210). The second processing state requires a power level that is higher than the external maximum power level. Image data is then processed (212) in the second processing state.
Abstract translation: 监控摄像机连接到外部电源。 外部电源具有外部最大功率电平。 正在以第一处理状态处理图像数据。 监控摄像机检测(202)事件并确定(206)检测到的事件的类型。 在监控摄像机中确定能量累加器中的能量(208)(208)。 基于事件的类型并且基于外部最大功率电平并且基于确定的能量累加器中的能量的量,确定第二处理状态(210)。 第二处理状态需要高于外部最大功率电平的功率电平。 然后在第二处理状态下对图像数据进行处理(212)。
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