Video processing system including advanced scene break detection methods for fades, dissolves and flashes
    2.
    发明申请
    Video processing system including advanced scene break detection methods for fades, dissolves and flashes 审中-公开
    视频处理系统包括先进的场景突破检测方法,用于淡化,溶解和闪烁

    公开(公告)号:US20060197879A1

    公开(公告)日:2006-09-07

    申请号:US10792598

    申请日:2004-03-02

    IPC分类号: H04N5/14 H04N9/64

    摘要: The invention provides a method and apparatus for detecting a scene transition in digitized video data. The method includes determining if a gradual transition is detected in the video data that ends with a current frame based at least on the current frame and one or more previous frames in the digitized video data. The gradual transition has a length. The method includes comparing the gradual transition to a synthetically produced gradual transition spanning a same length and generated from starting and ending frames associated with the detected gradual transition and marking the detected gradual transition only if the detected gradual transition is sufficiently similar to the synthetically produced gradual transition.

    摘要翻译: 本发明提供了一种用于检测数字化视频数据中的场景转换的方法和装置。 该方法包括至少基于当前帧和数字化视频数据中的一个或多个先前帧来确定在当前帧结束的视频数据中是否检测到逐渐转换。 逐渐过渡有一段长度。 该方法包括将逐渐过渡与跨越相同长度的合成产生的逐渐转变进行比较,并且从与检测到的逐渐转变相关联的起始和结束帧产生,并且仅在检测到的逐渐转变与合成产生的渐进过程充分相似时标记检测到的逐渐转变 过渡。

    Authentication of IP source addresses
    3.
    发明授权
    Authentication of IP source addresses 有权
    IP源地址认证

    公开(公告)号:US09258289B2

    公开(公告)日:2016-02-09

    申请号:US13872824

    申请日:2013-04-29

    IPC分类号: H04L29/06 H04W12/06 G06F17/30

    摘要: A method and system for authenticating IP source addresses by accessing one or more HTTP requests whose source client identifies itself as a legitimate web crawler. One or more IP addresses are detected from the one or more HTTP requests and each detected IP address is authenticated via a probability estimation regarding its association with a legitimate web crawler. A lookup table is preferably compiled for the authenticated IP addresses for reference, publication and authentication purposes.

    摘要翻译: 一种用于通过访问一个或多个HTTP请求来认证IP源地址的方法和系统,其源客户端将其自身标识为合法的网络爬网程序。 从一个或多个HTTP请求检测到一个或多个IP地址,并且通过关于其与合法网络爬虫的关联的概率估计来认证每个检测到的IP地址。 为了参考,出版和认证目的,优选地为认证的IP地址编辑查找表。

    Wellbore Control Device
    4.
    发明申请
    Wellbore Control Device 有权
    井筒控制装置

    公开(公告)号:US20130270466A1

    公开(公告)日:2013-10-17

    申请号:US13805138

    申请日:2011-07-04

    申请人: Jeffrey Edwards

    发明人: Jeffrey Edwards

    IPC分类号: E21B33/064

    CPC分类号: E21B33/064 E21B33/063

    摘要: A wellbore control device for use in a blow out preventer is described. The control device comprising a housing defining a throughbore, a gate, the gate being movable between a throughbore open position and a throughbore closed position, a first stem attached to the gate and a second stem releasably engageable with the gate, the first and second stems being arranged such that a portion of each stem is exposed to an internal housing pressure and a portion of each stem is exposed to an external housing pressure. When the internal pressure is greater than the external pressure, the pressure differential results in a force being applied to the gate to move the gate to, or retain the gate in, the throughbore closed position.

    摘要翻译: 描述了用于防喷器的井眼控制装置。 所述控制装置包括限定通孔的壳体,门,所述门能够在通孔开放位置和通孔闭合位置之间移动;附接到所述门的第一杆和与所述门可释放地接合的第二杆,所述第一和第二杆 被布置成使得每个杆的一部分暴露于内部壳体压力,并且每个杆的一部分暴露于外部壳体压力。 当内部压力大于外部压力时,压力差会导致施加在闸门上的力,以使闸门移动至通孔闭合位置或将闸门保持在通孔闭合位置。

    Riser control device
    5.
    发明申请
    Riser control device 有权
    立管控制装置

    公开(公告)号:US20050051339A1

    公开(公告)日:2005-03-10

    申请号:US10501325

    申请日:2003-01-15

    IPC分类号: E21B33/064 E21B17/01

    CPC分类号: E21B33/064

    摘要: Riser control device, particularly designed to be used in connection with spool or horizontal production trees (12) for wells in sub-sea oil and gas installations. Within a housing (1,2) of the device is provided, in opposed direction, radially movable pair of rams (6) for isolating (sealing off) the well and simultaniously, in opposed direction radially movable pair of shear blades (7) for cutting off an intervention string or the like. The rams (6) and blades (7) are driven by means of a within the housing (1,2) vertically provided actuator (8,9,23). The actuator may be in the form of a hydralically driven annulor piston (23)/annular chamber (29,30) device, which via piston rods (14) and translation beams (8) transforms the movement of the piston (23) to open or close the rams (6) and shear blades (7).

    摘要翻译: 提升管控制装置,特别设计用于与海底石油和天然气装置中的井的卷轴或水平生产树(12)结合使用。 在装置的壳体(1,2)内,在相对的方向上设置可径向移动的一对用于隔离(密封)井并同时地在一对相对的方向可径向移动的一对剪切刀片(7)上的一对柱塞(6),用于 切断干预弦等。 柱塞(6)和叶片(7)通过在壳体(1,2)垂直提供的致动器(8,9,23)内驱动。 致动器可以是液压驱动的环形活塞(23)/环形室(29,30)装置的形式,其通过活塞杆(14)和平移梁(8)将活塞(23)的运动转换成打开 或关闭公柱(6)和剪切刀片(7)。

    Workover riser compensator system
    6.
    发明授权
    Workover riser compensator system 有权
    修井提升补偿器系统

    公开(公告)号:US08727014B2

    公开(公告)日:2014-05-20

    申请号:US13456376

    申请日:2012-04-26

    申请人: Jeffrey Edwards

    发明人: Jeffrey Edwards

    IPC分类号: E21B17/01 E21B19/00

    摘要: A tensioning apparatus for applying a substantially constant tension to a workover riser (12) includes a first portion (40) adapted to be coupled to a workover riser, a second portion (44) adapted to be coupled to a marine riser (14) and tensioning means (46) for providing relative movement between the first portion and the second portion to, in use, tension, the workover riser.

    摘要翻译: 用于向修理提升器(12)施加基本上恒定的张力的张紧装置包括适于联接到修井提升管的第一部分(40),适于联接到海洋立管(14)的第二部分(44)和 张紧装置(46),用于在第一部分和第二部分之间提供相对运动,在使用中,使张力维持在修井提升器中。

    CONTROL MECHANISM FOR SUBSURFACE SAFETY VALVE
    7.
    发明申请
    CONTROL MECHANISM FOR SUBSURFACE SAFETY VALVE 有权
    用于表面安全阀的控制机构

    公开(公告)号:US20100243267A1

    公开(公告)日:2010-09-30

    申请号:US12595901

    申请日:2008-04-11

    申请人: Jeffrey Edwards

    发明人: Jeffrey Edwards

    IPC分类号: E21B34/16 E21B34/06

    摘要: A control mechanism for use with a safety valve adapted to seal a wellbore is described. The control mechanism comprises at least one valve actuator for engaging with the safety valve, the at least one actuator being moveable, in use, between a valve open position in which the safety valve is open and a valve closed position, in which the safety valve is closed. The control mechanism further comprises biasing apparatus adapted to bias the at least one valve actuator to the valve closed position, wherein, in use, the at least one valve actuator extends from the safety valve up to a wellbore wellhead. In one described embodiment, the safety valve is moved between the open and closed positions by movement of the at least one valve actuator with respect to the wellbore.

    摘要翻译: 描述了一种与适于密封井眼的安全阀一起使用的控制机构。 所述控制机构包括用于与所述安全阀接合的至少一个阀致动器,所述至少一个致动器在使用中可在所述安全阀打开的阀打开位置和阀关闭位置之间移动,其中所述安全阀 关闭了。 控制机构还包括偏置装置,其适于将至少一个阀致动器偏置到阀关闭位置,其中在使用中至少一个阀致动器从安全阀延伸到井眼井口。 在一个所描述的实施例中,通过至少一个阀致动器相对于井孔的运动,安全阀在打开和关闭位置之间移动。

    System, method and article of manufacture for tracking a head of a camera-generated image of a person
    10.
    发明申请
    System, method and article of manufacture for tracking a head of a camera-generated image of a person 有权
    用于跟踪人的相机生成图像的头部的系统,方法和制品

    公开(公告)号:US20050185054A1

    公开(公告)日:2005-08-25

    申请号:US11112433

    申请日:2005-04-21

    IPC分类号: G06T7/20 H04N9/47

    CPC分类号: G06T7/246

    摘要: A system, method and article of manufacture are provided for tracking a head portion of a person image in video images. Upon receiving video images, a first head tracking operation is executed for generating a first confidence value. Such first confidence value is representative of a confidence that a head portion of a person image in the video images is correctly located. Also executed is a second head tracking operation for generating a second confidence value representative of a confidence that the head portion of the person image in the video images is correctly located. The first confidence value and the second confidence value are then outputted. Subsequently, the depiction of the head portion of the person image in the video images is based on the first confidence value and the second confidence value.

    摘要翻译: 提供了一种用于跟踪视频图像中的人物图像的头部的系统,方法和制品。 在接收到视频图像时,执行第一头跟踪操作以产生第一置信度值。 这样的第一置信度值表示视频图像中的人物图像的头部正确定位的置信度。 还执行第二头跟踪操作,用于产生代表视频图像中的人物图像的头部正确定位的置信度的第二置信度值。 然后输出第一置信度值和第二置信度值。 随后,视频图像中的人物图像的头部的描绘基于第一置信度值和第二置信度值。