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    • 1. 发明授权
    • Sensor dark pixel offset estimation
    • 传感器暗像素偏移估计
    • US09369646B2
    • 2016-06-14
    • US14754005
    • 2015-06-29
    • Skybox Imaging, Inc.
    • Chwen-Yuan KuH. Keith NishiharaM. Dirk Robinson
    • H04N5/361
    • H04N5/361
    • Examples of systems and methods to provide estimates of dark current for pixels of a photosensor as a function of the temperature of the sensor and the gain applied to the photosensor are described. In various implementations, the dark current estimated for each pixel can depend at least partly on a global scale factor and a global bias that depend on temperature and gain and a temperature-independent and gain-independent offset value for each pixel. The scale, bias, and offsets may be determined from multiple dark field images taken by the sensor over a range of operating temperatures. In some cases, the scale and bias can be determined using a subset of less than all the image pixels. Scale and bias derived for a particular sensor can be used in the calibration of different sensors.
    • 描述了作为传感器的温度和施加到光传感器的增益的函数来提供光传感器的像素的暗电流的估计的系统和方法的示例。 在各种实施方案中,对于每个像素估计的暗电流可以至少部分地取决于全局比例因子和取决于每个像素的温度和增益以及与温度无关和增益无关的偏移值的全局偏差。 刻度,偏置和偏移可以由传感器在一定范围的工作温度下拍摄的多个暗场图像确定。 在某些情况下,可以使用小于所有图像像素的子集来确定比例和偏差。 用于特定传感器的尺度和偏差可用于校准不同的传感器。
    • 2. 发明授权
    • Satellite scheduling system
    • 卫星调度系统
    • US09262734B2
    • 2016-02-16
    • US13958433
    • 2013-08-02
    • Skybox Imaging, Inc.
    • Sean AugensteinJulian M. MannDaniel Berkenstock
    • B64G1/36G06Q10/06G06F17/30B64G1/10B64G1/24
    • G06Q10/06314B64G1/1021B64G1/1085B64G1/242G06F17/30241Y10S707/919Y10S707/921
    • Systems and methods are provided for scheduling objects having pair-wise and cumulative constraints. The systems and methods presented can utilize a directed acyclic graph to increase or maximize a utilization function. Violation of cumulative constraints can be identified at the moment of constraint violation such that events resulting in constraint violations can be removed from the schedule while the schedule is being determined. By removing the events triggering constraint violations at the point of constraint violation, the systems and methods provided can determine optimal or near-optimal schedules in a relatively quick and efficient manner compared to systems and methods that check for violations of cumulative constraints after determining a schedule. The objects can comprise satellites in a constellation of satellites. In some implementations, the satellites are imaging satellites, and the systems and methods for scheduling can use crowd-sourced data to determine events of interest for acquisition of images.
    • 提供了用于调度具有成对和累积约束的对象的系统和方法。 所提出的系统和方法可以利用有向无环图来增加或最大化利用功能。 可以在约束违规时识别违反累积约束的情况,从而在确定调度时可以从调度中删除导致约束违规的事件。 通过消除在约束违规时触发约束违规的事件,提供的系统和方法可以以比较快速和有效的方式确定最佳或接近最优的计划,与在确定计划之后检查违反累积约束的系统和方法 。 物体可以包括卫星星座中的卫星。 在一些实施方案中,卫星是成像卫星,并且用于调度的系统和方法可以使用人群来源的数据来确定用于获取图像的感兴趣的事件。
    • 3. 发明申请
    • SATELLITE SCHEDULING SYSTEM
    • 卫星调度系统
    • US20140039963A1
    • 2014-02-06
    • US13958433
    • 2013-08-02
    • Skybox Imaging, Inc.
    • Sean AugensteinJulian M. MannDaniel Berkenstock
    • G06Q10/06
    • G06Q10/06314B64G1/1021B64G1/1085B64G1/242G06F17/30241Y10S707/919Y10S707/921
    • Systems and methods are provided for scheduling objects having pair-wise and cumulative constraints. The systems and methods presented can utilize a directed acyclic graph to increase or maximize a utilization function. Violation of cumulative constraints can be identified at the moment of constraint violation such that events resulting in constraint violations can be removed from the schedule while the schedule is being determined. By removing the events triggering constraint violations at the point of constraint violation, the systems and methods provided can determine optimal or near-optimal schedules in a relatively quick and efficient manner compared to systems and methods that check for violations of cumulative constraints after determining a schedule. The objects can comprise satellites in a constellation of satellites. In some implementations, the satellites are imaging satellites, and the systems and methods for scheduling can use crowd-sourced data to determine events of interest for acquisition of images.
    • 提供了用于调度具有成对和累积约束的对象的系统和方法。 所提出的系统和方法可以利用有向无环图来增加或最大化利用功能。 可以在约束违规时识别违反累积约束的情况,从而在确定调度时可以从调度中删除导致约束违规的事件。 通过消除在约束违规时触发约束违规的事件,提供的系统和方法可以以相对快速和有效的方式确定最佳或接近最优的计划,与在确定计划之后检查违反累积约束的系统和方法 。 物体可以包括卫星星座中的卫星。 在一些实施方案中,卫星是成像卫星,并且用于调度的系统和方法可以使用人群来源的数据来确定用于获取图像的感兴趣的事件。
    • 5. 发明申请
    • INTEGRATED ANTENNA SYSTEM FOR IMAGING MICROSATELLITES
    • 用于成像微结构的集成天线系统
    • US20120300071A1
    • 2012-11-29
    • US13566548
    • 2012-08-03
    • Henrique Do Carmo Miranda
    • Henrique Do Carmo Miranda
    • H04N7/18
    • H04N7/005B64G1/1021B64G1/222B64G1/66H01Q1/08H01Q1/288H01Q19/10H04B7/18515H04N7/18
    • Examples of imaging microsatellites are described that have an imaging system and antenna system disposed within the microsatellite body when the microsatellite is in a non-deployed state. The properties of the antenna system can be adjusted such that the antenna system does not impact, contact, or displace the imaging system when the microsatellite is in the non-deployed state. The properties of the antenna system can be adjusted such that the antenna system does not contact or impact the body of the microsatellite or any other structure when the microsatellite transitions to a deployed state. The antenna system can be configured to achieve a desired gain and/or data transmission rate by adjusting properties of the antenna system based on the radiation pattern of an antenna feed and geometric constraints imposed by the imaging system. Examples of methods for designing such imaging microsatellites are provided.
    • 描述了成像微型卫星的示例,当微卫星处于非展开状态时,具有设置在微卫星体内的成像系统和天线系统。 可以调节天线系统的性质,使得当微卫星处于未部署状态时,天线系统不会影响,接触或置换成像系统。 可以调节天线系统的性质,使得当微卫星转变到展开状态时,天线系统不接触或撞击微卫星的主体或任何其他结构。 天线系统可以被配置为通过基于天线馈电的辐射图案和由成像系统施加的几何约束来调整天线系统的属性来实现期望的增益和/或数据传输速率。 提供了用于设计这种成像微型卫星的方法的实例。
    • 6. 发明授权
    • Multi-resolution pyramid for georeferenced video
    • 用于地理参考视频的多分辨率金字塔
    • US09313242B2
    • 2016-04-12
    • US13971724
    • 2013-08-20
    • Skybox Imaging, Inc.
    • Julian M. MannM. Dirk Robinson
    • G06F15/16H04L29/06H04N21/2343H04N21/4728H04N21/81
    • H04L65/60H04L65/602H04L65/80H04N21/234345H04N21/234363H04N21/234381H04N21/23439H04N21/4728H04N21/8133H04N21/816
    • Examples of systems and methods for delivering overhead video to a computing device are provided. Delivering the overhead video can include generating multiple versions of the overhead video having respective resolutions, bitrates, or frame rates. The system can then generate georeferenced video data for each version by incorporating georeferencing coordinates and time synchronization information. The georeferenced video data can be stored in transcoded video files. In response to a request from a computing device for video data of a geographical region, the system can transmit a primary video stream comprising georeferenced video data of a relatively high quality and a secondary video stream comprising georeferenced video data of a relatively low quality, wherein the primary video stream includes the geographical region and the secondary video stream includes a proximal geographical region.
    • 提供了将开销视频传送到计算设备的系统和方法的示例。 提供开销视频可以包括生成具有各自分辨率,比特率或帧速率的开销视频的多个版本。 然后,系统可以通过引入地理参考坐标和时间同步信息来为每个版本生成地理参考的视频数据。 地理参考视频数据可以存储在转码视频文件中。 响应于来自计算设备对地理区域的视频数据的请求,系统可以发送包括相对高质量的地理参考视频数据的主视频流和包括相对低质量的地理参考视频数据的次视频流,其中 主视频流包括地理区域,次视频流包括近端地理区域。