Complex image compression
    1.
    发明授权
    Complex image compression 有权
    复杂的图像压缩

    公开(公告)号:US08422799B1

    公开(公告)日:2013-04-16

    申请号:US12004027

    申请日:2007-12-20

    IPC分类号: G06K9/36

    CPC分类号: G06T9/004 G06T9/001 G06T9/007

    摘要: Complex image data is transformed to a holographic representation of the image. A subset of the holographic representation is modeled. Model parameters constitute a compressed image representation. A two-dimensional Fourier transform can be applied to obtain the holographic image. Modeling includes applying an analysis portion of an adaptive analysis/synthesis linear prediction methodology to a subset of the holographic representation to obtain an autoregressive model. Prior to modeling, one-dimensional Fourier transform can be performed on the holographic representation and the linear prediction is one-dimensional. Model parameters are preferably quantized. Embodiments include determining error between the model and the model's input data. There the compressed image representation the error, which also can be quantized. The subset of the holographic representation can be less than all the representation. The subset can be a plurality of complete rows; preferably substantially symmetric about 0 Hz.

    摘要翻译: 复杂图像数据被转换成图像的全息图像。 对全息图的一个子集进行建模。 模型参数构成压缩图像表示。 可以应用二维傅里叶变换来获得全息图像。 建模包括将自适应分析/合成线性预测方法的分析部分应用于全息图像的子集以获得自回归模型。 在建模之前,可以对全息图像进行一维傅里叶变换,并且线性预测是一维的。 模型参数优选地被量化。 实施例包括确定模型和模型的输入数据之间的误差。 有压缩图像表示的错误,也可以量化。 全息表示的子集可以小于所有的表示。 子集可以是多个完整的行; 优选基本上对称约0Hz。

    Multicast control systems and methods for dynamic, adaptive time, bandwidth,frequency, and satellite allocations
    2.
    发明授权
    Multicast control systems and methods for dynamic, adaptive time, bandwidth,frequency, and satellite allocations 有权
    用于动态,自适应时间,带宽,频率和卫星分配的组播控制系统和方法

    公开(公告)号:US07236738B2

    公开(公告)日:2007-06-26

    申请号:US10632483

    申请日:2003-08-01

    申请人: Timothy F. Settle

    发明人: Timothy F. Settle

    IPC分类号: H04H1/00

    摘要: Methods and systems to efficiently share multiple satellites and associated transponders or links among a network of uplinking earth stations are disclosed. An embodiment of this invention uses a terrestrial communications link, such as the Internet, to control access to the transponder or satellite links. Communications over this link may employ a TCP/IP protocol to connect the requesting uplinking earth stations with a centralized controller. This control system creates more efficient use of satellite resources and reduces the overall amount of time needed for transmitting data through the satellite. By reducing the overall amount of time needed for transmitting data, the control system may reduce the cost of using the satellite transponder capacity.

    摘要翻译: 公开了在上行链路地球站网络之间有效地共享多个卫星和相关联的应答器或链路的方法和系统。 本发明的一个实施例使用诸如因特网之类的地面通信链路来控制对应答器或卫星链路的接入。 通过该链路的通信可以采用TCP / IP协议来将请求的上行地球站与集中控制器连接。 该控制系统可以更有效地利用卫星资源,并减少通过卫星传输数据所需的总时间。 通过减少发送数据所需的总时间,控制系统可以降低使用卫星转发器容量的成本。