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    • 2. 发明申请
    • System and method for using a video monitoring system to prevent and manage decubitus ulcers in patients
    • 使用视频监控系统预防和治疗患者褥疮溃疡的系统和方法
    • US20120026308A1
    • 2012-02-02
    • US12804774
    • 2010-07-29
    • Steve Gail JohnsonMatthew Cameron ClarkStephen EckerKyle Brook JohnsonRichard Craig Kuether
    • Steve Gail JohnsonMatthew Cameron ClarkStephen EckerKyle Brook JohnsonRichard Craig Kuether
    • G06K9/00H04N7/18
    • G06K9/00369G06K9/00711G06K9/00771G06K2009/00738G06T7/73G06T2207/10016G06T2207/10024G06T2207/30196G06T2207/30201G06T2207/30232H04N7/18
    • A video monitoring system captures image frames of a patient in various positions. The captured image frames are analyzed by the system for changes in a patient's position or movement, frames in which the system detects one or both of patient movement and repositioning are retained. The system analyzes an area of interest within each image frame that corresponds to an area in the camera's view field with the patient. Sequential image frames are compared for motion, only frames without motion, where the patient is still, are analyzed. Analysis techniques include selecting a plurality of vertical positions in the area of interest, each vertical position corresponding to a part of the patient body indicative of the patient's position, horizontally scanning values along the horizontal pixel row at each vertical position in the area of interest, finding an average value for each vertical position and identifying a patient interval of the horizontal pixel row having pixel values different from the average and a representative horizontal position of the patient interval for each vertical interval. Then, comparing those median horizontal positions from a current image frame to the representative horizontal positions from a previous image frame to determine a change in the patient's position.
    • 视频监控系统以各种位置捕获患者的图像帧。 由系统分析捕获的图像帧以改变患者的位置或运动,其中保持系统检测到患者运动和重新定位中的一个或两个的框架。 系统分析每个图像帧内与感兴趣的区域相对应的位置,该区域与患者的相机视野中的区域相对应。 对顺序图像帧进行运动进行比较,仅分析不依赖于患者的运动的帧。 分析技术包括选择感兴趣区域中的多个垂直位置,每个垂直位置对应于指示患者位置的患者体部的一部分,沿着感兴趣区域中的每个垂直位置处的水平像素行水平扫描值, 找到每个垂直位置的平均值,并且识别具有与每个垂直间隔的患者间隔的平均值和代表性水平位置不同的像素值的水平像素行的患者间隔。 然后,将来自当前图像帧的那些中间水平位置与来自先前图像帧的代表性水平位置进行比较,以确定患者位置的变化。
    • 3. 发明授权
    • System and method for using a video monitoring system to prevent and manage decubitus ulcers in patients
    • 使用视频监控系统预防和治疗患者褥疮溃疡的系统和方法
    • US08675059B2
    • 2014-03-18
    • US12804774
    • 2010-07-29
    • Steve Gail JohnsonMatthew Cameron ClarkStephen EckerKyle Brook JohnsonRichard Craig Kuether
    • Steve Gail JohnsonMatthew Cameron ClarkStephen EckerKyle Brook JohnsonRichard Craig Kuether
    • H04N7/18
    • G06K9/00369G06K9/00711G06K9/00771G06K2009/00738G06T7/73G06T2207/10016G06T2207/10024G06T2207/30196G06T2207/30201G06T2207/30232H04N7/18
    • A video monitoring system captures image frames of a patient in various positions. The captured image frames are analyzed by the system for changes in a patient's position or movement, frames in which the system detects one or both of patient movement and repositioning are retained. The system analyzes an area of interest within each image frame that corresponds to an area in the camera's view field with the patient. Sequential image frames are compared for motion, only frames without motion, where the patient is still, are analyzed. Analysis techniques include selecting a plurality of vertical positions in the area of interest, each vertical position corresponding to a part of the patient body indicative of the patient's position, horizontally scanning values along the horizontal pixel row at each vertical position in the area of interest, finding an average value for each vertical position and identifying a patient interval of the horizontal pixel row having pixel values different from the average and a representative horizontal position of the patient interval for each vertical interval. Then, comparing those median horizontal positions from a current image frame to the representative horizontal positions from a previous image frame to determine a change in the patient's position.
    • 视频监控系统以各种位置捕获患者的图像帧。 由系统分析捕获的图像帧以改变患者的位置或运动,其中保持系统检测到患者运动和重新定位中的一个或两个的框架。 系统分析每个图像帧内与感兴趣的区域相对应的位置,该区域与患者的相机视野中的区域相对应。 对顺序图像帧进行运动进行比较,仅分析不依赖于患者的运动的帧。 分析技术包括选择感兴趣区域中的多个垂直位置,每个垂直位置对应于指示患者位置的患者体部的一部分,沿着感兴趣区域中的每个垂直位置处的水平像素行水平扫描值, 找到每个垂直位置的平均值,并且识别具有与每个垂直间隔的患者间隔的平均值和代表性水平位置不同的像素值的水平像素行的患者间隔。 然后,将来自当前图像帧的那些中间水平位置与来自先前图像帧的代表性水平位置进行比较,以确定患者位置的变化。