Automatic multiscale image acquisition from a steerable camera
    1.
    发明授权
    Automatic multiscale image acquisition from a steerable camera 失效
    从可控照相机进行自动多尺度图像采集

    公开(公告)号:US08289392B2

    公开(公告)日:2012-10-16

    申请号:US12166732

    申请日:2008-07-02

    IPC分类号: H04N7/18

    摘要: A system for automatically acquiring high-resolution images by steering a pan-tilt-zoom camera at targets detected in a fixed camera view is provided. The system uses automatic or manual calibration between multiple cameras. Using automatic calibration, the homography between the cameras in a home position is estimated together with the effects of pan and tilt controls and the expected height of a person in the image. These calibrations are chained together to steer a slave camera. The manual calibration scheme steers a camera to the desired region of interest and calculates the pan, tile and zoom parameters accordingly.

    摘要翻译: 提供了一种用于通过将俯仰变焦相机瞄准在固定摄像机视图中检测到的目标来自动获取高分辨率图像的系统。 该系统使用多台摄像机之间的自动或手动校准。 使用自动校准,估计初始位置的摄像机之间的单应性以及平移和倾斜控制的影响以及人物在图像中的预期高度。 这些校准被链接在一起以引导从照相机。 手动校准方案将相机引导到所需的感兴趣区域,并相应地计算平移,平铺和缩放参数。

    Automatic multiscale image acquisition from a steerable camera
    2.
    发明授权
    Automatic multiscale image acquisition from a steerable camera 有权
    从可控照相机进行自动多尺度图像采集

    公开(公告)号:US07796154B2

    公开(公告)日:2010-09-14

    申请号:US11074383

    申请日:2005-03-07

    IPC分类号: H04N7/18

    摘要: A system for automatically acquiring high-resolution images by steering a pan-tilt-zoom camera at targets detected in a fixed camera view is provided. The system uses automatic or manual calibration between multiple cameras. Using automatic calibration, the homography between the cameras in a home position is estimated together with the effects of pan and tilt controls and the expected height of a person in the image. These calibrations are chained together to steer a slave camera. The manual calibration scheme steers a camera to the desired region of interest and calculates the pan, tile and zoom parameters accordingly.

    摘要翻译: 提供了一种用于通过将俯仰变焦相机瞄准在固定摄像机视图中检测到的目标来自动获取高分辨率图像的系统。 该系统使用多台摄像机之间的自动或手动校准。 使用自动校准,估计初始位置的摄像机之间的单应性以及平移和倾斜控制的效果以及人物在图像中的预期高度。 这些校准被链接在一起以引导从照相机。 手动校准方案将相机引导到所需的感兴趣区域,并相应地计算平移,平铺和缩放参数。

    Automatic Multiscale Image Acquisition from a Steerable Camera
    3.
    发明申请
    Automatic Multiscale Image Acquisition from a Steerable Camera 失效
    自动多尺度图像采集从可转向相机

    公开(公告)号:US20080259179A1

    公开(公告)日:2008-10-23

    申请号:US12166732

    申请日:2008-07-02

    IPC分类号: H04N5/228 H04N5/225 H04N5/262

    摘要: A system for automatically acquiring high-resolution images by steering a pan-tilt-zoom camera at targets detected in a fixed camera view is provided. The system uses automatic or manual calibration between multiple cameras. Using automatic calibration, the homography between the cameras in a home position is estimated together with the effects of pan and tilt controls and the expected height of a person in the image. These calibrations are chained together to steer a slave camera. The manual calibration scheme steers a camera to the desired region of interest and calculates the pan, tile and zoom parameters accordingly.

    摘要翻译: 提供了一种用于通过将俯仰变焦相机瞄准在固定摄像机视图中检测到的目标来自动获取高分辨率图像的系统。 该系统使用多台摄像机之间的自动或手动校准。 使用自动校准,估计初始位置的摄像机之间的单应性以及平移和倾斜控制的效果以及人物在图像中的预期高度。 这些校准被链接在一起以引导从照相机。 手动校准方案将相机引导到所需的感兴趣区域,并相应地计算平移,平铺和缩放参数。

    Automatic Multiscale Image Acquisition from a Steerable Camera
    4.
    发明申请
    Automatic Multiscale Image Acquisition from a Steerable Camera 审中-公开
    自动多尺度图像采集从可转向相机

    公开(公告)号:US20120327246A1

    公开(公告)日:2012-12-27

    申请号:US13602973

    申请日:2012-09-04

    IPC分类号: H04N7/18

    摘要: A system for automatically acquiring high-resolution images by steering a pan-tilt-zoom camera at targets detected in a fixed camera view is provided. The system uses automatic or manual calibration between multiple cameras. Using automatic calibration, the homography between the cameras in a home position is estimated together with the effects of pan and tilt controls and the expected height of a person in the image. These calibrations are chained together to steer a slave camera. The manual calibration scheme steers a camera to the desired region of interest and calculates the pan, tile and zoom parameters accordingly.

    摘要翻译: 提供了一种用于通过将俯仰变焦相机瞄准在固定摄像机视图中检测到的目标来自动获取高分辨率图像的系统。 该系统使用多台摄像机之间的自动或手动校准。 使用自动校准,估计初始位置的摄像机之间的单应性以及平移和倾斜控制的效果以及人物在图像中的预期高度。 这些校准被链接在一起以引导从照相机。 手动校准方案将相机引导到所需的感兴趣区域,并相应地计算平移,平铺和缩放参数。

    Robust and efficient foreground analysis for real-time video surveillance
    6.
    发明授权
    Robust and efficient foreground analysis for real-time video surveillance 失效
    实时视频监控的强大而高效的前景分析

    公开(公告)号:US07620266B2

    公开(公告)日:2009-11-17

    申请号:US11039442

    申请日:2005-01-20

    IPC分类号: G06K9/64

    摘要: Systems and methods for foreground analysis in real-time video include background subtraction and foreground detection, shadow removal, quick lighting change adaptation, static foreground region detection, foreground fragment reduction, and frame level change detection. Processes include background image extraction and foreground detection, integrating texture information of the background image and a current frame to remove false positive foreground areas resulting from lighting changes, integrating pixel intensity information by determining a cross-correlation of intensities between a current frame and the background image for each pixel in a foreground mask to remove image shadows. Static foreground region detection and fragment reduction are also included.

    摘要翻译: 实时视频前景分析的系统和方法包括背景减影和前景检测,阴影去除,快速照明改变适应,静态前景区域检测,前景碎片缩减和帧级变化检测。 过程包括背景图像提取和前景检测,整合背景图像的纹理信息和当前帧以去除由照明变化引起的假正面前景区域,通过确定当前帧与背景之间的强度的互相关来对像素强度信息进行积分 用于去除图像阴影的前景蒙版中每个像素的图像。 还包括静态前​​景区域检测和片段缩减。

    INTELLIGENT SURVEILLANCE SYSTEM AND METHOD FOR INTEGRATED EVENT BASED SURVEILLANCE
    7.
    发明申请
    INTELLIGENT SURVEILLANCE SYSTEM AND METHOD FOR INTEGRATED EVENT BASED SURVEILLANCE 审中-公开
    智能监控系统和基于集成事件的监控方法

    公开(公告)号:US20080273088A1

    公开(公告)日:2008-11-06

    申请号:US12132872

    申请日:2008-06-04

    IPC分类号: H04N7/18 G08B13/00 G06F17/40

    CPC分类号: H04N7/18

    摘要: A surveillance system and method includes a plurality of sensors configured to monitor an environment. A plurality of analytic engines is associated with each of the plurality of sensors. The plurality of analytic engines employs different technologies and is configured to analyze input from the sensors to determine whether an event has occurred in a respective technology. A unifying data model is configured to cross correlate detected events from the different technologies to gain integrated situation awareness across the different technologies.

    摘要翻译: 监视系统和方法包括被配置为监视环境的多个传感器。 多个分析引擎与多个传感器中的每一个相关联。 多个分析引擎采用不同的技术,并且被配置为分析来自传感器的输入以确定在相应技术中是否已经发生事件。 配置统一的数据模型,将来自不同技术的检测到的事件交叉相关,以获得整个不同技术的综合情境意识。

    System and method for generating a viewable video index for low bandwidth applications
    8.
    发明授权
    System and method for generating a viewable video index for low bandwidth applications 有权
    用于为低带宽应用生成可视视频索引的系统和方法

    公开(公告)号:US07447331B2

    公开(公告)日:2008-11-04

    申请号:US10785890

    申请日:2004-02-24

    IPC分类号: G06K9/00 H04N5/225

    摘要: A system and method for generating a viewable video index for low bandwidth applications are provided. The exemplary aspects of the present invention solve the problems with the prior art systems by incorporating information for generating a viewable representation of the video data into the index, thus generating a viewable video index. The viewable video index contains information for generating a visual representation of moving objects in the video data, a visual representation of the background of the video capture area, i.e. the scene, a representation of the object trajectory, a representation of the object attributes, and a representation of detected events. The result is that the viewable video index may be transmitted to a low bandwidth application on a client device and may be used along with associated object and background models to generate a representation of the actual video data without requiring that the original video data itself be streamed to the client device.

    摘要翻译: 提供了一种用于为低带宽应用产生可视视频索引的系统和方法。 本发明的示例性方面通过将用于生成视频数据的可视表示的信息并入索引来解决现有技术系统的问题,从而生成可视视频索引。 可视的视频索引包含用于生成视频数据中的运动对象的视觉表示的信息,视频捕获区域的背景的视觉表示,即场景,对象轨迹的表示,对象属性的表示,以及 检测到的事件的表示。 结果是,可视的视频索引可以被发送到客户端设备上的低带宽应用,并且可以与相关联的对象和背景模型一起使用以生成实际视频数据的表示,而不需要流式传输原始视频数据本身 到客户端设备。

    Method and apparatus for object normalization using object classification
    10.
    发明授权
    Method and apparatus for object normalization using object classification 有权
    使用对象分类的对象规范化的方法和装置

    公开(公告)号:US07480414B2

    公开(公告)日:2009-01-20

    申请号:US10965298

    申请日:2004-10-14

    IPC分类号: G06K9/62

    摘要: Methods and apparatus are provided for normalizing objects across a plurality of image viewpoints. A set of classification results are obtained for a given object class across a sequence of images for each of a plurality of viewpoints. The classification results are each comprised of a position of one of the objects in the image, and at least one projected property of the object at that position. Normalization parameters are then determined for each of the viewpoints by fitting a high order model to the classification results to model a change in the projected property. The high order model may implement a least squares fit of a second order polynomial to the classification results. The normalization parameters may be used to compute normalized features and normalized training data for object classification.

    摘要翻译: 提供了用于在多个图像视点标准化对象的方法和装置。 对于多个视点中的每一个的图像序列,针对给定对象类获得一组分类结果。 分类结果各自包括图像中的一个对象的位置以及该位置处的对象的至少一个投影属性。 然后通过将高阶模型拟合到分类结果以对投影属性的变化进行建模来为每个视点确定归一化参数。 高阶模型可以对分类结果实施二阶多项式的最小二乘拟合。 归一化参数可用于计算归一化特征和归一化的对象分类训练数据。