公开(公告)号：US20140104487A1

公开(公告)日：2014-04-17

申请号：US14135154

申请日：2013-12-19

Applicant: InView Technology Corporation

Inventor： Robert F. Bridge ,  Matthew A. Herman ,  Donna E. Hewitt ,  Tyler H. Weston ,  Justin A. Fritz

IPC: H04N5/235

CPC classification number: H04N5/2351 ,  G02B26/0833 ,  H04N5/2354 ,  H04N5/243 ,  H04N5/335

Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

Abstract translation: 捕获接收的光流的压缩感测（CS）测量的成像系统和方法，并且还获得背景光级（BGLL）的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括：用空间模式对接收到的光流进行空间调制的光调制器，以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得：（a）在空间图案之间注入校准图案; （b）测量由数字微镜反射到辅助输出路径上的互补光; （c）分离和测量来自光学输入路径的一部分光; （d）CS测量的低通滤波; 和（e）使用具有其自己的独立输入路径的光功率计。 此外，CS测量可以被高通滤波以衰减背景光的变化。

公开(公告)号：US08760542B2

公开(公告)日：2014-06-24

申请号：US14135154

申请日：2013-12-19

Applicant: InView Technology Corporation

Inventor： Robert F. Bridge ,  Matthew A. Herman ,  Donna E. Hewitt ,  Tyler H. Weston ,  Justin A. Fritz

IPC: H04N5/217 ,  H04N9/73 ,  G03B13/00 ,  H04N5/235 ,  H04N5/243 ,  G02B26/08

CPC classification number: H04N5/2351 ,  G02B26/0833 ,  H04N5/2354 ,  H04N5/243 ,  H04N5/335

Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

Abstract translation: 捕获接收的光流的压缩感测（CS）测量的成像系统和方法，并且还获得背景光级（BGLL）的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括：用空间模式对接收到的光流进行空间调制的光调制器，以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得：（a）在空间图案之间注入校准图案; （b）测量由数字微镜反射到辅助输出路径上的互补光; （c）分离和测量来自光学输入路径的一部分光; （d）CS测量的低通滤波; 和（e）使用具有其自己的独立输入路径的光功率计。 此外，CS测量可以被高通滤波以衰减背景光的变化。

公开(公告)号：US20150116563A1

公开(公告)日：2015-04-30

申请号：US14527459

申请日：2014-10-29

Applicant: InView Technology Corporation

Inventor： Matthew A. Herman ,  Justin A. Fritz

IPC: H04N5/378

CPC classification number: H04N5/378 ,  H03M7/3062

Abstract: A technique to collect measurements that are adapted to a signal/scene of interest is presented. The measurements are correlations with patterns that serve as modulating waveforms. The patterns correspond respectively to rows of a sensing matrix. The method uses a sensing matrix whose rows are partitioned into blocks. Each block corresponds to a distinct feature or salient property of the scene. For each block, the method collects a number of measurements of the signal/scene based on selected rows of the block, and generates one or more associated statistics for the block based on said measurements. The statistics for the blocks are then analyzed (e.g., sorted) to determine the most important blocks. Subsequent measurements of the signal/scene may be based on rows from those most important blocks. The original measurements and/or the subsequent measurements may then be used in an algorithm to reconstruct the signal/scene.

Abstract translation: 提出了收集适合于感兴趣的信号/场景的测量的技术。 测量结果与用作调制波形的图形相关。 这些图案分别对应于感测矩阵的行。 该方法使用其行被划分成块的感测矩阵。 每个块对应于场景的不同特征或突出特性。 对于每个块，该方法基于块的所选行收集信号/场景的多个测量值，并且基于所述测量生成用于块的一个或多个相关联的统计信息。 然后分析（例如，排序）块的统计信息以确定最重要的块。 信号/场景的后续测量可以基于来自那些最重要的块的行。 然后可以在算法中使用原始测量和/或后续测量来重构信号/场景。