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    • 2. 发明授权
    • Methods and apparatus for direct-global separation of light using angular filtering
    • 使用角度滤波直接全局分离光的方法和装置
    • US08593643B2
    • 2013-11-26
    • US12700654
    • 2010-02-04
    • Jaewon KimRamesh Raskar
    • Jaewon KimRamesh Raskar
    • G01B11/24G01N21/00G06K9/00
    • G01B11/26G01J3/50G06F17/10H04N7/18
    • In an exemplary implementation of this invention, light from a scattering scene passes through a spatial light attenuation pattern and strikes a sensor plane of a camera. Based on said camera's measurements of the received light, a processing unit calculates angular samples of the received light. Light that strikes the sensor plane at certain angles comprises both scattered and directly transmitted components; whereas light that strikes at other angles comprises solely scattered light. A processing unit calculates a polynomial model for the intensity of scattered-only light that falls at the latter angles, and further estimates the direct-only component of the light that falls at the former angles. Further, a processing unit may use the estimated direct component to calculate a reconstructed 3D shape, such as a 3D shape of a finger vein pattern, using an algebraic reconstruction technique.
    • 在本发明的示例性实施方式中,来自散射场景的光通过空间光衰减图案并撞击照相机的传感器平面。 基于所述相机对所接收的光的测量,处理单元计算所接收的光的角度样本。 以某一角度撞击传感器平面的光包括散射和直接传输的部件; 而以其他角度撞击的光仅包括散射光。 处理单元计算以后角度落下的散射光强度的多项式模型,并且进一步估计以前一角度落下的光的直接分量。 此外,处理单元可以使用估计的直接分量来使用代数重建技术来计算重建的3D形状,例如手指静脉图案的3D形状。
    • 4. 发明申请
    • METHOD FOR RECEIVING DATA IN MULTI INPUT MULTI OUTPUT
    • 用于在多输入多输出中接收数据的方法
    • US20120087400A1
    • 2012-04-12
    • US13376831
    • 2009-11-06
    • Jaewon KimJaewon ChangDong-Uk LeeWonjin SungByoung-Hoon KimJun-Ho Jo
    • Jaewon KimJaewon ChangDong-Uk LeeWonjin SungByoung-Hoon KimJun-Ho Jo
    • H04B1/38H04L27/06
    • H04B7/043H04B7/0478H04B7/0639
    • Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector.
    • 公开了一种用于在多输入多输出(MIMO)系统中接收数据的方法,该方法包括:通过使用码本中包含的一个波束形成向量解码从发射机发送的波束形成向量,其中波束形成向量以分层结构形成 根据无线电信道的改变方向,频道改变方向的数量和变化率中的至少一个; 基于无线电信道确定是否更新波束形成向量; 当确定需要更新波束形成矢量时,选择具有分层结构的码本中包括的其它波束形成矢量; 关于指示所选波束形成向量在码本的层级结构中位于发射机的索引的反馈信息; 以及通过使用所选择的波束形成向量来解码从发射机接收的数据。
    • 7. 发明申请
    • Methods and Apparatus for Direct-Global Separation of Light Using Angular Filtering
    • 使用角度滤波直接全局分离光的方法和装置
    • US20110191073A1
    • 2011-08-04
    • US12700654
    • 2010-02-04
    • Jaewon KimRamesh Raskar
    • Jaewon KimRamesh Raskar
    • G06F17/10G01B11/26G01J3/50H04N7/18
    • G01B11/26G01J3/50G06F17/10H04N7/18
    • In an exemplary implementation of this invention, light from a scattering scene passes through a spatial light attenuation pattern and strikes a sensor plane of a camera. Based on said camera's measurements of the received light, a processing unit calculates angular samples of the received light. Light that strikes the sensor plane at certain angles comprises both scattered and directly transmitted components; whereas light that strikes at other angles comprises solely scattered light. A processing unit calculates a polynomial model for the intensity of scattered-only light that falls at the latter angles, and further estimates the direct-only component of the light that falls at the former angles. Further, a processing unit may use the estimated direct component to calculate a reconstructed 3D shape, such as a 3D shape of a finger vein pattern, using an algebraic reconstruction technique.
    • 在本发明的示例性实施方式中,来自散射场景的光通过空间光衰减图案并撞击照相机的传感器平面。 基于所述相机对所接收的光的测量,处理单元计算所接收的光的角度样本。 以某一角度撞击传感器平面的光包括散射和直接传输的部件; 而以其他角度撞击的光仅包括散射光。 处理单元计算以后角度落下的散射光强度的多项式模型,并且进一步估计以前一角度落下的光的直接分量。 此外,处理单元可以使用估计的直接分量来使用代数重建技术来计算重建的3D形状,例如手指静脉图案的3D形状。