| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 用于通过测量空间频率分量进行雷达成像的装置和方法 | CN201310182327.0 | 2008-05-20 | CN103278817A | 2013-09-04 | 章成栋 |
| 提供了一种通过沿着垂直航迹维度施加的数字波束成形技术直接测量场景的空间频率分量的雷达成像系统。分离的发射天线和接收天线为接收函数提供了增大的积分时间，从而改进了信噪比。采用了分段的接收天线，并且将其处理为对场景中相应于天线元件对之间的间隔的空间频率分量敏感的一系列干涉计。在沿航迹维度上使用距离选通，以便将来自辐射测绘带的返回波划分到可被独立处理的多个距离区间内。该系统提供了改进的信噪比，并且给图像形成处理提供了显著的灵活性，提高了雷达成像的质量。还提供了能够产生三维立体雷达图像的具有多个发射天线的实施例。 | ||||||
| 2 | 用于通过测量空间频率分量进行雷达成像的装置和方法 | CN200880024227.2 | 2008-05-20 | CN101765789B | 2013-06-19 | 章成栋 |
| 提供了一种通过沿着垂直航迹维度施加的数字波束成形技术直接测量场景的空间频率分量的雷达成像系统。分离的发射天线和接收天线为接收函数提供了增大的积分时间，从而改进了信噪比。采用了分段的接收天线，并且将其处理为对场景中相应于天线元件对之间的间隔的空间频率分量敏感的一系列干涉计。在沿航迹维度上使用距离选通，以便将来自辐射测绘带的返回波划分到可被独立处理的多个距离区间内。该系统提供了改进的信噪比，并且给图像形成处理提供了显著的灵活性，提高了雷达成像的质量。还提供了能够产生三维立体雷达图像的具有多个发射天线的实施例。 | ||||||
| 3 | 用于通过测量空间频率分量进行雷达成像的装置和方法 | CN201310182327.0 | 2008-05-20 | CN103278817B | 2015-07-08 | 章成栋 |
| 提供了一种通过沿着垂直航迹维度施加的数字波束成形技术直接测量场景的空间频率分量的雷达成像系统。分离的发射天线和接收天线为接收函数提供了增大的积分时间，从而改进了信噪比。采用了分段的接收天线，并且将其处理为对场景中相应于天线元件对之间的间隔的空间频率分量敏感的一系列干涉计。在沿航迹维度上使用距离选通，以便将来自辐射测绘带的返回波划分到可被独立处理的多个距离区间内。该系统提供了改进的信噪比，并且给图像形成处理提供了显著的灵活性，提高了雷达成像的质量。还提供了能够产生三维立体雷达图像的具有多个发射天线的实施例。 | ||||||
| 4 | 用于通过测量空间频率分量进行雷达成像的装置和方法 | CN200880024227.2 | 2008-05-20 | CN101765789A | 2010-06-30 | 章成栋 |
| 提供了一种通过沿着垂直航迹维度施加的数字波束成形技术直接测量场景的空间频率分量的雷达成像系统。分离的发射天线和接收天线为接收函数提供了增大的积分时间，从而改进了信噪比。采用了分段的接收天线，并且将其处理为对场景中相应于天线元件对之间的间隔的空间频率分量敏感的一系列干涉计。在沿航迹维度上使用距离选通，以便将来自辐射测绘带的返回波划分到可被独立处理的多个距离区间内。该系统提供了改进的信噪比，并且给图像形成处理提供了显著的灵活性，提高了雷达成像的质量。还提供了能够产生三维立体雷达图像的具有多个发射天线的实施例。 | ||||||
| 5 | 对具有平行于显示器的条纹方向的空间频率优势的对象的基于子分量的呈现 | CN200480035263.0 | 2004-07-30 | CN1973314A | 2007-05-30 | M·J·杜甘; B·斯塔姆; G·G·韦德; G·C·希奇考克 |
| 一种用于在包含每一像素的像素子分量的显示器的一部分上呈现对象的机制。像素子分量沿着某一方向(例如，垂直或水平)分条。计算系统确定该对象具有处于碰巧与条纹方向平行的方向中的空间频率优势(400)。计算系统然后在假定条纹方向与实际条纹方向正交的情况下执行基于子分量的采样(421)。然后在显示器上呈现该对象(422)。这可对要显示的每一对象执行。违反直觉地，与在假定条纹方向与实际条纹方向相同的情况下执行基于像素子分量的采样比较，这改进了所显示的字符的分辨率。 | ||||||
| 6 | FINGERPRINT CLASSIFICATION VIA SPATIAL FREQUENCY COMPONENTS | PCT/US9814344 | 1998-07-10 | WO9905637A8 | 1999-03-25 | DYDYK ROBERT BARRY; MILLS STUART A; DENNIS PHILLIP WAYNE |
| The present invention is a method and apparatus for automatically placing a first unknown image, such as an unknown fingerprint image, into one of a plurality of categories. The invention includes storing in a library a plurality of value series, each of which series is derived from the frequency representation of an image category. The categorization process and apparatus takes the frequency image of a first unknown pattern to create a first frequency image. The frequency image plane of the first (unknown) frequency image is devided into a plurality of frequency image plane regions. Each of the frequency image plane regions may be an angular segment radiating from the origin of the frequency image plane. A region value is assigned to each of the frequency image plane regions based on the total energy in the frequency image in that region. The region values for the first frequency image are combined to generate a first series of region values. The first series of region values is compared in a comparator with each of the stored value serie. The comparator preferably performs a correlation function on the pattern or series of the regional values using the one dimensional frequency transform of the spatial representation of the pattern of series of regional values. | ||||||
| 7 | FINGERPRINT CLASSIFICATION VIA SPATIAL FREQUENCY COMPONENTS | PCT/US1998/014344 | 1998-07-10 | WO99005637A1 | 1999-02-04 | |
| The present invention is a method and apparatus for automatically placing a first unknown image, such as an unknown fingerprint image, into one of a plurality of categories. The invention includes storing in a library a plurality of value series, each of which series is derived from the frequency representation of an image category. The categorization process and apparatus takes the frequency image of a first unknown pattern to create a first frequency image. The frequency image plane of the first (unknown) frequency image is devided into a plurality of frequency image plane regions. Each of the frequency image plane regions may be an angular segment radiating from the origin of the frequency image plane. A region value is assigned to each of the frequency image plane regions based on the total energy in the frequency image in that region. The region values for the first frequency image are combined to generate a first series of region values. The first series of region values is compared in a comparator with each of the stored value serie. The comparator preferably performs a correlation function on the pattern or series of the regional values using the one dimensional frequency transform of the spatial representation of the pattern of series of regional values. | ||||||
| 8 | Plural space frequency component extracting device | JP526879 | 1979-01-20 | JPS5596919A | 1980-07-23 | UTAGAWA TAKESHI; HOSHINO KUNIHISA; SHIROKAZU HIROSHI; OGASAWARA AKIRA |
| PURPOSE: To extract the plural space frequency components in the light images projected into a photoelectric element array from the same photoelectric element outputs of said array be using vectoring means and addition means. CONSTITUTION: The photo diodes D1WD8 connected to the 1st switch group 5 constituting a photo diode array 1 are connected to holding circuits 13aW13h via sampling hold circuit 9 and 2nd switch group 11, and further terminals T1WT8 are connected to band-pass filters 19AW19C via vectoring circuits 30A, 30B and common conductors 50A, 50B acting as addition means. As a result of this, the photoelectric outputs i1Wi8 outputted from the terminals T1WT9 are converted to vectors by being given with the phases delayed by switching element groups S 21WS 28, S 31W38, S 41W48, after and only the space frequency components are outputted from the band-pass filters 19AW19C. COPYRIGHT: (C)1980,JPO&Japio | ||||||
| 9 | Space frequency component extraction device for optical images | JP8791877 | 1977-07-22 | JPS5422848A | 1979-02-21 | UTAGAWA TAKESHI |
| 10 | APPARATUS AND METHOD FOR RADAR IMAGING BY MEASURING SPATIAL FREQUENCY COMPONENTS | PCT/US2008064194 | 2008-05-20 | WO2009023339A3 | 2009-04-02 | CHANG DONALD CHIN-DONG |
| A radar imaging system is provided that directly measures the spatial frequency components of a scene via digital-beam-forming techniques applied along the cross-track dimension. Separate transmit and receive antennas provide increased integration time for the receive function, thus improving the signal-to-noise ratio. A segmented receive antenna is employed and processed as a series of interferometers sensitive to spatial frequency components of the scene corresponding to the separation between pairs of antenna elements. Range gating is used in the along-track dimension to divide the return from an illuminated swath into multiple range bins that may be processed independently. The system provides an improved signal-to-noise ratio and lends significant flexibility to the image formation process, improving the quality of the radar imaging. An embodiment having multiple transmit antennas is also provided that enables the generation of three-dimensional stereoscopic radar images. | ||||||
| 11 | Spatial frequency filter in which frequency components greater than the Niquist frequency are suppressed | US92269 | 1987-08-31 | US4801795A | 1989-01-31 | Dennis J. Wilwerding |
| Apparatus and method for suppressing high frequency components in a scene being viewed and particularly components in access of the Nyquist frequency for use in autofocus camera work so as to maximize the use of the low frequency components. | ||||||
| 12 | METHOD AND APPARATUS FOR ENHANCED RESOLUTION OF HIGH SPATIAL FREQUENCY COMPONENTS OF IMAGES USING STANDING WAVE BEAMS IN NON-INTERFEROMETRIC AND INTERFEROMETRIC MICROSCOPY | PCT/US2004032023 | 2004-09-30 | WO2005033747A3 | 2007-05-31 | HILL HENRY ALLEN |
| A method of measuring properties of a substrate, the method involving: illuminating a spot on the substrate with a standing wave measurement beam to generate a return measurement beam, the standing wave measurement beam characterized by a standing wave pattern; generating an electrical signal from the return measurement beam; causing the standing wave pattern to be at a succession of different positions on the surface of the substrate; and for each of the succession of different positions of the standing wave pattern, acquiring measurement data from the electrical signal. | ||||||
| 13 | Device for extracting a plurality of space frequency components | US109281 | 1980-01-03 | US4306143A | 1981-12-15 | Ken Utagawa; Kunihisa Hoshino; Hiroshi Shirasu; Akira Ogasawara |
| A device for extracting a plurality of space frequency components from an optical image formed by an image forming optical system comprises a photoelectric element array including at least N photoelectric elements disposed in or near the image formation plane of the image forming optical system, and means for generating, on the basis of the output of each of the photoelectric elements of the array, an electrical output varying in phase in accordance with the displacement of the optical image in the direction of arrangement of the photoelectric elements. | ||||||
| 14 | Light image space frequency component extracting device | US98153 | 1979-11-28 | US4291224A | 1981-09-22 | Hiroshi Shirasu; Akira Ogasawara; Ken Utagawa |
| This invention discloses a device for extracting the space frequency component of an image formed by an optical system. The device comprises means having a photoelectric element array including a plurality of photoelectric elements on which said image is projected and time-sequentially generating, at a predetermined period, a pulse output having a magnitude corresponding to the intensity of light received by each of the photoelectric elements, means for successively storing the respective pulse outputs, means for converting each of the stored pulse outputs into an AC signal, and means for adding together the AC signals and producing the same. | ||||||
| 15 | Fingerprint classification via spatial frequency components | US09350807 | 1999-07-09 | US06226391B1 | 2001-05-01 | Robert Barry Dydyk; Stuart A. Mills; Phillip Wayne Dennis |
| The present invention is a method and apparatus for automatically placing a first unknown image, such as an unknown fingerprint image, into one of a plurality of categories. The invention includes storing in a library a plurality of value series, each of which series is derived from the frequency representation of an image category. The categorization process and apparatus takes the frequency image of a first unknown pattern to create a first frequency image. The frequency image plane of the first (unknown) frequency image is divided into a plurality of frequency image plane regions. Each of the frequency image plane regions may be an angular segment radiating from the origin of the frequency image plane. A region value is assigned to each of the frequency image plane regions based on the total energy in the frequency image in that region. The region values for the first frequency image are combined to generate a first series of region values. The first series of region values is compared in a comparator with each of the stored value series. The comparator preferably performs a correlation function on the pattern or series of the regional values using the one dimensional frequency transform of the spatial representation of the pattern of series of regional values. | ||||||
| 16 | Fingerprint classification via spatial frequency components | US899803 | 1997-07-24 | US5953442A | 1999-09-14 | Robert Barry Dydyk; Stuart A. Mills; Phillip Wayne Dennis |
| The present invention is a method and apparatus for automatically placing a first unknown image, such as an unknown fingerprint image, into one of a plurality of categories. The invention includes storing in a library a plurality of value series, each of which series is derived from the frequency representation of an image category. The categorization process and apparatus takes the frequency image of a first unknown pattern to create a first frequency image. The frequency image plane of the first (unknown) frequency image is divided into a plurality of frequency image plane regions. Each of the frequency image plane regions may be an angular segment radiating from the origin of the frequency image plane. A region value is assigned to each of the frequency image plane regions based on the total energy in the frequency image in that region. The region values for the first frequency image are combined to generate a first series of region values. The first series of region values is compared in a comparator with each of the stored value series. The comparator preferably performs a correlation function on the pattern or series of the regional values using the one dimensional frequency transform of the spatial representation of the pattern of series of regional values. | ||||||
| 17 | Device for, and method of, spatially separating frequency components of incident optical radiation | EP98949113.9 | 1998-10-21 | EP1027628B1 | 2003-01-02 | BOYNE, Colin, Michael; HEATON, John, Michael; WIGHT, David, Robert |
| 18 | METHOD AND APPARATUS FOR ENHANCED RESOLUTION OF HIGH SPATIAL FREQUENCY COMPONENTS OF IMAGES USING STANDING WAVE BEAMS IN NON-INTERFEROMETRIC AND INTERFEROMETRIC MICROSCOPY | PCT/US2004/032023 | 2004-09-30 | WO2005033747A2 | 2005-04-14 | HILL, Henry, Allen |
A method of measuring properties of a substrate, the method involving: illuminating a spot on the substrate with a standing wave measurement beam to generate a return measurement beam, the standing wave measurement beam characterized by a standing wave pattern; generating an electrical signal from the return measurement beam; causing the standing wave pattern to be at a succession of different positions on the surface of the substrate; and for each of the succession of different positions of the standing wave pattern, acquiring measurement data from the electrical signal. |
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| 19 | Apparatus and method for radar imaging by measuring spatial frequency components | US12122566 | 2008-05-16 | US07609198B2 | 2009-10-27 | Donald Chin-Dong Chang |
| A radar imaging system is provided that directly measures the spatial frequency components of a scene via digital-beam-forming techniques applied along the cross-track dimension. Separate transmit and receive antennas provide increased integration time for the receive function, thus improving the signal-to-noise ratio. A segmented receive antenna is employed and processed as a series of interferometers sensitive to spatial frequency components of the scene corresponding to the separation between pairs of antenna elements. Range gating is used in the along-track dimension to divide the return from an illuminated swath into multiple range bins that may be processed independently. The system provides an improved signal-to-noise ratio and lends significant flexibility to the image formation process, improving the quality of the radar imaging. An embodiment having multiple transmit antennas is also provided that enables the generation of three-dimensional stereoscopic radar images. | ||||||
| 20 | Color image processor which corrects spatial and frequency characteristics of color components | US925660 | 1992-08-07 | US5495350A | 1996-02-27 | Hideaki Shimizu; Hidenori Ozaki |
| An image reading apparatus which can eliminate a difference of the MTF occurring due to the matching of the positions of the pixels and can perform an accurate color discrimination and can obtain a high image quantity. An image on an original is read through color separation filters of a plurality of colors. By executing position correction arithmetic operations with respect to all of the color pixels which have been read, the pixel positions are corrected without a deviation, thereby setting the MTF of each color pixel to the same level. In the position correction arithmetic operations, by setting a plurality of virtual pixels with respect to each color every pixel on boundaries of different color pixels and by executing the interpolation arithmetic operations, not only the positions can be corrected but also the resolution can be improved. | ||||||
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