公开(公告)号：US20080074291A1

公开(公告)日：2008-03-27

申请号：US11831847

申请日：2007-07-31

Applicant: David Brady ,  Nikos Pitslanis ,  Xiaobai Sun ,  Prasant Potuluri

Inventor： David Brady ,  Nikos Pitslanis ,  Xiaobai Sun ,  Prasant Potuluri

IPC: H03M1/22 ,  H03M1/00

CPC classification number: G06T9/00 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/59 ,  H04N19/593 ,  H04N19/63

Abstract: A transmission mask or coded aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmission function. The optical signal transmitted by the mask is detected at each sensor of a plurality of sensors dispersed spatially with respect to the mask. A number of estimated optical signal values is calculated from sensor measurements and the transmission function. The optical signal is compressed by selecting the transmission function so that the number of measurements is less than the number of estimated optical signal values. A reconstructed optical signal is further calculated using signal inference. An imaging system created from plurality of encoded subimaging systems compressively samples an optical signal. Encoding methods include but are not limited to pixel shift coding, birefringent shift coding, transmission mask coding, micro-optic coding, diffractive coding, interferometric coding, and focal plane coding.

Abstract translation: 在光谱学中使用透射掩模或编码孔径来压缩采样光信号。 掩模的透射和不透明元件的位置由透射函数决定。 在相对于掩模在空间上分散的多个传感器的每个传感器处检测由掩模发射的光信号。 从传感器测量和传输功能计算出多个估计的光信号值。 通过选择发送功能来压缩光信号，使得测量次数小于估计的光信号值的数量。 使用信号推断进一步计算重建的光信号。 由多个编码子图像系统创建的成像系统压缩地采样光信号。 编码方法包括但不限于像素移位编码，双折射移位编码，传输掩码编码，微光编码，衍射编码，干涉编码和焦平面编码。

公开(公告)号：US07283231B2

公开(公告)日：2007-10-16

申请号：US11183838

申请日：2005-07-19

Applicant: David J. Brady ,  Nikos Pitsianis ,  Xiaobai Sun ,  Prasant Potuluri

Inventor： David J. Brady ,  Nikos Pitsianis ,  Xiaobai Sun ,  Prasant Potuluri

IPC: G01J3/28

CPC classification number: G06T9/00 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/59 ,  H04N19/593 ,  H04N19/63

Abstract: A transmission mask or cooled aperture is used in spectroscopy to compressively sample an optical signal. The locations of transmissive and opaque elements of the mask are determined by a transmission function. The optical signal transmitted by the mask is detected at each sensor of a plurality of sensors dispersed spatially with respect to the mask. A number of estimated optical signal values is calculated from sensor measurements and the transmission function. The optical signal is compressed by selecting the transmission function so that the number of measurements is less than the number of estimated optical signal values. A reconstructed optical signal is further calculated using signal inference. An imaging system created from plurality of encoded subimaging systems compressively samples an optical signal. Encoding methods include but are not limited to pixel shift coding, birefringent shift coding, transmission mask coding, micro-optic coding, diffractive coding, interferometric coding, and focal plane coding.

Abstract translation: 在光谱学中使用透射掩模或冷却孔来压缩采样光信号。 掩模的透射和不透明元件的位置由透射函数决定。 在相对于掩模在空间上分散的多个传感器的每个传感器处检测由掩模发射的光信号。 从传感器测量和传输功能计算出多个估计的光信号值。 通过选择发送功能来压缩光信号，使得测量次数小于估计的光信号值的数量。 使用信号推断进一步计算重建的光信号。 由多个编码子图像系统创建的成像系统压缩地采样光信号。 编码方法包括但不限于像素移位编码，双折射移位编码，传输掩码编码，微光编码，衍射编码，干涉编码和焦平面编码。