公开(公告)号：US07463174B2

公开(公告)日：2008-12-09

申请号：US11831730

申请日：2007-07-31

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

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

IPC: 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: An optical signal is compressively sampled. An optical component with a plurality of transmissive elements and a plurality of opaque elements is created. The location of the plurality of transmissive elements and the plurality of opaque elements is determined by a transmission function. A spectrum of the optical signal is dispersed across the optical component. Signals transmitted by the plurality of transmissive elements are detected in a single time step at each sensor of a plurality of sensors dispersed spatially with respect to the optical component. Each sensor of the plurality of sensors produces a measurement resulting in a number of measurements for the single time step. A number of estimated optical signal values is calculated from the number of measurements and the transmission function. The transmission function is selected so that the number of measurements is less than the number of estimated optical signal values.

Abstract translation: 光信号被压缩采样。 产生具有多个透射元件和多个不透明元件的光学部件。 多个透射元件和多个不透明元件的位置由透射功能决定。 光信号的光谱分散在光学部件上。 在相对于光学部件在空间上分散的多个传感器的每个传感器的单个时间步长中检测由多个透射元件发送的信号。 多个传感器中的每个传感器产生测量结果，用于单个时间步长的多个测量。 根据测量次数和传输函数计算出多个估计的光信号值。 选择发送功能，使得测量次数小于估计的光信号值的数量。

公开(公告)号：US20060038705A1

公开(公告)日：2006-02-23

申请号：US11183838

申请日：2005-07-19

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

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

IPC: H03M1/22

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。

公开(公告)号：US20080074292A1

公开(公告)日：2008-03-27

申请号：US11831855

申请日：2007-07-31

Applicant: David Brady ,  Nikos Pitsianis ,  Xiaobai Sun ,  Pransant Potuluri

Inventor： David Brady ,  Nikos Pitsianis ,  Xiaobai Sun ,  Pransant 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.

公开(公告)号：US07616306B2

公开(公告)日：2009-11-10

申请号：US11831832

申请日：2007-07-31

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: An optical wavemeter includes a slit, a diffraction grating, a mask, a complementary grating, and a detector. A monochromatic source is incident on the slit. The diffraction grating produces an image of the slit in an image plane at a horizontal position that is wavelength dependent. The mask has a two-dimensional pattern of transmission variations and produces different vertical intensity channels for different spectral channels. The complementary grating produces a stationary image of the slit independent of wavelength. The detector measures vertical variations in intensity of the stationary image, and the mask is created so that the number of measurements made by the detector is less than the number of spectral channels sampled.

Abstract translation: 光波长计包括狭缝，衍射光栅，掩模，互补光栅和检测器。 单色源入射在狭缝上。 衍射光栅在波长相关的水平位置处在像平面中产生狭缝的图像。 掩模具有传输变化的二维图案，并为不同的光谱通道产生不同的垂直强度通道。 互补光栅产生独立于波长的狭缝的静止图像。 检测器测量静止图像的强度的垂直变化，并且创建掩模，使得由检测器进行的测量的数量小于采样的频谱通道的数量。

公开(公告)号：US07463179B2

公开(公告)日：2008-12-09

申请号：US11831855

申请日：2007-07-31

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

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

IPC: H03M1/12

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: An optical signal is compressively sampled using an optical component to encode multiplex measurements. A mapping from the optical signal to a detector array is created using spatial and/or spectral dispersion. Signals transmitted by a plurality of transmissive elements of the optical component are detected at each sensor of a plurality of sensors of the detector array dispersed spatially with respect to the optical component. Each sensor of a plurality of sensors produces a measurement resulting in a number of measurements. A number of estimated optical signal values is calculated from the number of measurements and a transmission function. The transmission function is selected so that the number of measurements is less than the number of estimated optical signal values.

Abstract translation: 使用光学部件对光信号进行压缩采样以对多重测量进行编码。 使用空间和/或光谱色散创建从光信号到检测器阵列的映射。 在相对于光学部件在空间上分散的检测器阵列的多个传感器的每个传感器的每个传感器处检测由光学部件的多个透射元件发送的信号。 多个传感器中的每个传感器产生测量，导致多个测量。 根据测量次数和传输函数计算出多个估计的光信号值。 选择发送功能，使得测量次数小于估计的光信号值的数量。

公开(公告)号：US07432843B2

公开(公告)日：2008-10-07

申请号：US11831840

申请日：2007-07-31

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

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

IPC: H03M1/12

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 signal is temporally compressively sampled. A plurality of analog to digital converters are assembled to sample the signal. Each analog to digital converter of the plurality of analog to digital converters is configured to sample the signal at a time step determined by a temporal sampling function. The signal is sampled over a period of time using the plurality of analog to digital converters. Each analog to digital converter of the plurality of analog to digital converters produces a measurement resulting in a number of measurements for the period of time. A number of estimated signal values are calculated from the number of measurements and the temporal sampling function. The temporal sampling function is selected so that the number of measurements is less than the number of estimated signal values.

Abstract translation: 信号在时间上被压缩采样。 组合多个模数转换器以对信号进行采样。 多个模数转换器的每个模 - 数转换器被配置为在由时间采样函数确定的时间步长采样信号。 使用多个模数转换器在一段时间内采样信号。 多个模数转换器中的每个模/数转换器产生一段测量结果，导致该时间段内的多个测量。 根据测量次数和时间采样函数计算出多个估计信号值。 选择时间采样功能，使得测量次数小于估计信号值的数量。

公开(公告)号：US20080080773A1

公开(公告)日：2008-04-03

申请号：US11831730

申请日：2007-07-31

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

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

IPC: G06K9/78

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.

公开(公告)号：US20080074663A1

公开(公告)日：2008-03-27

申请号：US11831832

申请日：2007-07-31

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

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

IPC: G01J3/40

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.

公开(公告)号：US07427932B2

公开(公告)日：2008-09-23

申请号：US11831847

申请日：2007-07-31

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

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

IPC: H03M1/22

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: An optical signal is copressively sampled using an imaging system. The imaging system is created from a plurality of subimaging systems. Each subimaging system comprises a subaperture and a plurality of sensors. The optical signal is collected at each subaperture of the plurality of subimaging systems at a single time step. The optical signal is transformed into a subimage at each subimaging system of plurality of subimaging systems. The subimage includes at least one measurement from a plurality of sensors of each subimaging systems. An image of the optical signal is calculated from the sampling function and each subimage, spatial location, pixel sampling function, and point spread function of each subimaging system of the plurality of subimaging systems. The sampling function is selected so that the number of measurements from a plurality of subimages is less than a number of estimated optical signal values in the image.

Abstract translation: 使用成像系统对光信号进行拒绝采样。 成像系统由多个子成像系统创建。 每个子成像系统包括子孔径和多个传感器。 在多个子成像系统的每个子孔径处以单个时间步长收集光学信号。 在多个次成像系统的每个子图像系统处将光信号变换成子图像。 子图像包括来自每个子图像系统的多个传感器的至少一个测量。 根据多个次成像系统的每个子成像系统的采样函数和每个子图像，空间位置，像素采样函数和点扩散函数计算光信号的图像。 选择采样功能，使得来自多个子图像的测量次数小于图像中估计的光信号值的数量。

公开(公告)号：US20080129568A1

公开(公告)日：2008-06-05

申请号：US11831840

申请日：2007-07-31

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

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

IPC: H03M1/12

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.