公开(公告)号：US07777484B2

公开(公告)日：2010-08-17

申请号：US12210342

申请日：2008-09-15

Applicant: Michael Garwood ,  Djaudat S. Idiyatullin ,  Curt Corum ,  Steen Moeller

Inventor： Michael Garwood ,  Djaudat S. Idiyatullin ,  Curt Corum ,  Steen Moeller

IPC: G01V3/00

CPC classification number: G01N24/10 ,  G01N24/081 ,  G01R33/441 ,  G01R33/446 ,  G01R33/4616 ,  G01R33/4816 ,  G01R33/54

Abstract: A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. The sweeping frequency excitation has a duration and is configured to sequentially excite isochromats having different resonant frequencies. Acquisition of the time domain signal is done during the duration of the sweeping frequency excitation. The time domain signal is based on evolution of the isochromats.

Abstract translation: 提供了一种磁共振的方法，其使用频率扫描激励，其中提供所获取的信号是时域信号。 在一个实施例中，该方法包括：施加扫频激励并获取时域信号。 扫频频率激励具有持续时间并且被配置为顺序地激发具有不同谐振频率的异色素。 在扫描频率激励的持续时间内完成时域信号的采集。 时域信号是基于异色素的进化。

公开(公告)号：US20090027050A1

公开(公告)日：2009-01-29

申请号：US12210342

申请日：2008-09-15

Applicant: Michael Garwood ,  Djaudat S. Idiyatullin ,  Curt Corum ,  Steen Moeller

Inventor： Michael Garwood ,  Djaudat S. Idiyatullin ,  Curt Corum ,  Steen Moeller

IPC: G01R33/48

CPC classification number: G01N24/10 ,  G01N24/081 ,  G01R33/441 ,  G01R33/446 ,  G01R33/4616 ,  G01R33/4816 ,  G01R33/54

Abstract: A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. The sweeping frequency excitation has a duration and is configured to sequentially excite isochromats having different resonant frequencies. Acquisition of the time domain signal is done during the duration of the sweeping frequency excitation. The time domain signal is based on evolution of the isochromats.

Abstract translation: 提供了一种磁共振的方法，其使用频率扫描激励，其中提供所获取的信号是时域信号。 在一个实施例中，该方法包括：施加扫频激励并获取时域信号。 扫频频率激励具有持续时间并且被配置为顺序地激发具有不同谐振频率的异色素。 在扫描频率激励的持续时间内完成时域信号的采集。 时域信号是基于异色素的进化。

公开(公告)号：US6151069A

公开(公告)日：2000-11-21

申请号：US963097

申请日：1997-11-03

Applicant: Randy R. Dunton ,  Werner Metz ,  Curt Corum ,  Lawrence A. Booth, Jr. ,  Tinku Acharya ,  Thomas C. Jones

Inventor： Randy R. Dunton ,  Werner Metz ,  Curt Corum ,  Lawrence A. Booth, Jr. ,  Tinku Acharya ,  Thomas C. Jones

IPC: H04N5/225 ,  H04N1/00 ,  H04N1/21 ,  H04N1/41 ,  H04N5/232 ,  H04N5/335 ,  H04N7/26

CPC classification number: H04N1/212 ,  H04N1/2112 ,  H04N1/41 ,  H04N19/00 ,  H04N5/232 ,  H04N5/335 ,  H04N1/00204 ,  H04N2201/0049

Abstract: A cost effective digital image capture apparatus such as a digital camera that operates in both still mode and video mode, using a common programmable image processing chain and fixed optics. The full resolution of the image sensor (yielding raw image data) may be used in still mode, with adequate signal-to-noise ratio (SNR) achieved either from the scene ambient lighting or from supplemental light supplied by a strobe. In video mode, the apparatus may be configured to capture video image data by programming the parameters for image processing methodologies such as scaling, decorrelation, and encoding into a look-up table (LUT) which in turn configures logic circuitry to spatially scale and compress if necessary the raw image data in order to meet storage and transmission bandwidth constraints for video images. In video mode, adequate SNR may be achieved despite the lower light conditions, encountered, for example, during videoconferencing, by averaging pixels together during scaling.

Abstract translation: 一种具有成本效益的数字图像采集装置，例如在静止模式和视频模式下操作的数字照相机，使用公共可编程图像处理链和固定光学器件。 图像传感器的全分辨率（产生原始图像数据）可以在静止模式下使用，具有从场景环境照明或由闪光灯提供的补充光获得的足够的信噪比（SNR）。 在视频模式中，该装置可以被配置为通过将诸如缩放，去相关和编码的图像处理方法的参数编程到查找表（LUT）中来捕获视频图像数据，该查询表又将逻辑电路配置成在空间上缩放和压缩 如有必要，原始图像数据为了满足视频图像的存储和传输带宽限制。 在视频模式中，尽管在例如视频会议期间遇到较低的光线条件，但通过在缩放期间将像素平均化在一起，可以实现足够的SNR。

公开(公告)号：US20150226821A1

公开(公告)日：2015-08-13

申请号：US14617616

申请日：2015-02-09

Applicant: JINJIN ZHANG ,  MICHAEL GARWOOD ,  Djaudat Idiyatullin ,  CURT CORUM ,  Naoharu Kobayashi

Inventor： JINJIN ZHANG ,  MICHAEL GARWOOD ,  Djaudat Idiyatullin ,  CURT CORUM ,  Naoharu Kobayashi

IPC: G01R33/561 ,  G01R33/46 ,  G01R33/54 ,  G01R33/48

Abstract: Described here are systems and methods for magnetic resonance imaging (“MRI”) using a sweeping frequency excitation applied during a time-varying magnetic field gradient. As an example, a gradient-modulated offset independent adiabaticity (“GOIA”) approach can be used to modify the pattern of the sweeping frequency excitation. Data are acquired as time domain signals and processed to generate images. As an example, the time domain signals are processed using a correlation between a Fourier transform of the gradient-modulated sweeping frequency excitation and a Fourier transform of the time domain signals.

Abstract translation: 这里描述了使用在时变磁场梯度期间施加的扫频激励的磁共振成像（“MRI”）的系统和方法。 作为示例，可以使用梯度调制偏移独立绝热（“GOIA”）方法来修改扫频激励的模式。 数据作为时域信号获取并被处理以产生图像。 作为示例，使用梯度调制的扫频频率激励的傅立叶变换和时域信号的傅里叶变换之间的相关来处理时域信号。

公开(公告)号：US20060078198A1

公开(公告)日：2006-04-13

申请号：US11283375

申请日：2005-11-18

Applicant: Edward Bawolek ,  Lawrence Booth ,  Curt Corum ,  William Kuhn

Inventor： Edward Bawolek ,  Lawrence Booth ,  Curt Corum ,  William Kuhn

IPC: G06K9/00

CPC classification number: G01J3/52 ,  G01J3/524 ,  G06T7/90 ,  H04N1/603 ,  H04N1/6033 ,  H04N17/002

Abstract: A method and apparatus for color calibrating an imager device is disclosed. The imager device is subjected to a plurality of light sources. Color channel responses are obtained from the imager device and the color calibrating coefficients are determined.

Abstract translation: 公开了一种用于彩色校准成像器装置的方法和装置。 成像器装置经受多个光源。 从成像器装置获得颜色通道响应，并且确定颜色校准系数。