-
公开(公告)号：US20220270360A1
公开(公告)日：2022-08-25
申请号：US17636904
申请日：2020-08-20
发明人： David MENDLOVIC , Raja GIRYES , Dana WEITZNER
IPC分类号： G06V10/82 , G06V10/147 , G06V10/50 , G06T7/50
摘要： A device for authentication of a three-dimensional object includes an imaging array having a sensor configured to generate first and second sparse views of a surface of the three-dimensional object that faces the imaging array, and a processing circuitry. The processing circuitry is configured to: interpolate the first and second sparse views to obtain first and second interpolated images; calculate a planar disparity function for a plurality of image pixels of one of the first or second interpolated images; generate a projected image by displacing the plurality of image pixels of one of the first or the second interpolated images using the planar disparity function; and compare the projected image with the other of the first or second interpolated images to determine conformance of the planar disparity function with the interpolated images of the surface of the object.
-
2.发明申请公开(公告)号：US20220108466A1
公开(公告)日：2022-04-07
申请号：US17426648
申请日：2020-01-29
发明人： David MENDLOVIC , Raja GIRYES , Ofir NABATI , Ido YOVEL
IPC分类号： G06T7/557 , H04N19/167 , H04N19/136 , H04N19/597 , G06N3/08
摘要： Presented herein are methods and systems for training a model, specifically a machine learning model, for example, a Deep Neural Network (DNN) for signal reconstruction in an iterative process comprising a plurality of training iterations and use of the trained DNN thereof. Each of the iterations comprises receiving a record associating a compressed signal created according to a sensing matrix selected from a plurality of sensing matrixes with a respective signal originated from a signal source and used for compressing the at least one compressed signal according to the selected sensing matrix, feeding the record and the sensing matrix to train a model and outputting the trained model which may be used for reconstructing one or more new signals originated from the signal source. Wherein at least two of the plurality of sensing matrixes are fed during at least two separate iterations of the plurality of training iterations.
-
公开(公告)号：US20170316547A1
公开(公告)日：2017-11-02
申请号：US15485823
申请日：2017-04-12
发明人： David MENDLOVIC , Ariel RAZ
CPC分类号： G06T3/4015 , G01J3/26 , G01J3/51 , G02B26/001 , H04N9/045
摘要： An imaging system color image acquisition including: an image sensor; a tunable spectral filter arranged in an optical path of light propagation towards the image sensor; and a controller connected to the image sensor and to the tunable spectral filter. The controller is configured and operable for generating a colored image by sequentially operating the tunable spectral filter for sequentially filtering light passing towards the image sensor with three or more different spectral filtering curves during three or more corresponding integration time durations. The tunable spectral filter is configured, as an etalon and includes a pair of reflective surfaces. At least one of the reflective surfaces includes a layer of high refractive index of at least n=2.3 or even higher than 3, or a layer of low refractive index, smaller than n=1. The configuration of the etalon provide wide transmission peaks of the spectral curves with full-width-half maximum (FWHM) in the range of about 50 to 80 nm, free spectral range (FSR) of at least 300 nm, and thickness of the etalon in the order to 1 mm or even less.
-
公开(公告)号：US20160171653A1
公开(公告)日：2016-06-16
申请号：US14392143
申请日：2014-06-24
发明人： David MENDLOVIC , Ariel RAZ
CPC分类号： G06T3/4015 , G01J3/26 , G01J3/51 , G02B26/001 , H04N9/045
摘要： An imaging system color image acquisition including: an image sensor; a tunable spectral filter arranged in an optical path of light propagation towards the image sensor; and a controller connected to the image sensor and to the tunable spectral filter. The controller is configured and operable for generating a colored image by sequentially operating the tunable spectral filter for sequentially filtering light passing towards the image sensor with three or more different spectral filtering curves during three or more corresponding integration time durations. The tunable spectral filter is configured, as an etalon and includes a pair of reflective surfaces. At least one of the reflective surfaces includes a layer of high refractive index of at least n=2.3 or even higher than 3, or a layer of low refractive index, smaller than n=1. The configuration of the etalon provide wide transmission peaks of the spectral curves with full-width-half maximum (FWHM) in the range of about 50 to 80 nm, free spectral range (FSR) of at least 300 nm, and thickness of the etalon in the order to 1 mm or even less.
摘要翻译： 一种成像系统彩色图像采集，包括：图像传感器; 布置在朝向图像传感器的光传播的光路中的可调谐光谱滤波器; 以及连接到图像传感器和可调谐光谱滤波器的控制器。 控制器被配置和操作以通过顺序地操作可调谐光谱滤波器来产生彩色图像，以便在三个或更多个对应的积分时间期间内以三个或更多个不同的光谱滤波曲线顺序地滤去通向图像传感器的光。 可调谐光谱滤波器被配置为标准具并包括一对反射表面。 至少一个反射表面包括至少n = 2.3或甚至高于3的高折射率层或低折射率的层，小于n = 1。 标准具的配置提供了宽范围半宽度（FWHM）在约50至80nm范围内的光谱曲线，至少300nm的自由光谱范围（FSR）和标准具厚度的宽透射峰 顺序为1毫米甚至更少。
-
-
-
搜索结果
4 条记录 (耗时 0.019 秒)
