MOTION-COMPENSATED OPTICAL COHERENCE TOMOGRAPHY SYSTEM
    32.
    发明申请
    MOTION-COMPENSATED OPTICAL COHERENCE TOMOGRAPHY SYSTEM 有权
    运动补偿光学相干坐标系统

    公开(公告)号:US20140078512A1

    公开(公告)日:2014-03-20

    申请号:US13618810

    申请日:2012-09-14

    IPC分类号: G01B9/02

    摘要: A motion-compensated optical coherence tomography system includes an optical coherence tomography sensor that includes a common-path optical fiber having an end for emitting light, reflecting reference light and receiving returned light for detection; a motion-compensation system attached to the common-path optical fiber and operable to move at least a portion of the optical fiber so as to compensate for motion between the end of the common-path optical fiber and an object being imaged; and a feedback control system configured to communicate with the optical coherence tomography sensor and the motion-compensation system. The feedback control system is configured to receive information concerning a measured distance of the end of the common-path optical fiber from the object and provide instructions to the motion-compensation system to decrease an amount of deviation of the measured distance from a desired distance.

    摘要翻译: 运动补偿光学相干断层摄影系统包括光学相干断层摄影传感器,其包括具有用于发射光的一端的共轨光纤,反射参考光并接收用于检测的返回光; 运动补偿系统,其附接到所述公共路径光纤并且可操作以移动所述光纤的至少一部分,以便补偿所述公共路径光纤的端部与被成像的物体之间的运动; 以及配置成与光学相干断层摄影传感器和运动补偿系统通信的反馈控制系统。 反馈控制系统被配置为从物体接收关于公共路径光纤的端部的测量距离的信息,并且向运动补偿系统提供指令以减少测量距离与期望距离的偏差量。

    Method for processing a digital image, in particular for processing contour regions, and corresponding device
    33.
    发明授权
    Method for processing a digital image, in particular for processing contour regions, and corresponding device 有权
    用于处理数字图像,特别是用于处理轮廓区域的方法和相应的装置

    公开(公告)号:US08457436B2

    公开(公告)日:2013-06-04

    申请号:US12161243

    申请日:2007-01-17

    IPC分类号: G06K9/40

    CPC分类号: H04N5/208

    摘要: A method of processing a digital image which includes at least one contour zone, including a contour zone sharpness processing. The sharpness processing includes a conversion of the cues regarding level of pixels of the contour zone into initial main cues, lying between zero and a main value dependent on the amplitude of the contour, a sharpness sub-processing performed on these initial main cues so as to obtain final main cues, and a conversion of the final main cues into final cues regarding levels.

    摘要翻译: 一种处理数字图像的方法,该数字图像包括包括轮廓区域锐度处理的至少一个轮廓区域。 锐度处理包括将关于轮廓区域的像素级别的提示转换为初始主要提示,位于零和取决于轮廓的幅度的主值之间,对这些初始主要提示执行的清晰度子处理,以便 获得最终的主要线索,并将最终主要线索转换为关于水平的最终提示。

    OPTICAL COHERENCE TOMOGRAPHY SYSTEM HAVING REAL-TIME ARTIFACT AND SATURATION CORRECTION
    34.
    发明申请
    OPTICAL COHERENCE TOMOGRAPHY SYSTEM HAVING REAL-TIME ARTIFACT AND SATURATION CORRECTION 有权
    具有实时艺术和饱和度校正的光学相干系统

    公开(公告)号:US20130044330A1

    公开(公告)日:2013-02-21

    申请号:US13586586

    申请日:2012-08-15

    IPC分类号: G01B9/02

    摘要: An optical coherence tomography system having real-time artifact and saturation correction includes an optical coherence tomography unit, and a signal processing and display system adapted to communicate with the optical coherence tomography unit to receive imaging signals therefrom. The optical coherence tomography system is a Fourier Domain optical coherence tomography system. The signal processing and display system includes a parallel processor configured to correct the imaging signals, in real time, to at least partially remove image artifacts and saturation based on a subset of image data within an image frame.

    摘要翻译: 具有实时伪影和饱和度校正的光学相干断层摄影系统包括光学相干断层摄影单元,以及适于与光学相干断层摄影单元通信以从其接收成像信号的信号处理和显示系统。 光学相干断层扫描系统是傅立叶域光学相干断层扫描系统。 信号处理和显示系统包括并行处理器,其被配置为实时地校正成像信号,以至少部分地基于图像帧内的图像数据的子集去除图像伪影和饱和度。

    DIRECTIONAL ANTI-ALIASING FILTER
    35.
    发明申请
    DIRECTIONAL ANTI-ALIASING FILTER 有权
    方向反吸收过滤器

    公开(公告)号:US20120155783A1

    公开(公告)日:2012-06-21

    申请号:US12970817

    申请日:2010-12-16

    申请人: Yong Huang Lucas Hui

    发明人: Yong Huang Lucas Hui

    IPC分类号: G06K9/40

    摘要: A directional anti-aliasing filter circuit includes an input node and an output node, a directional anti-aliasing filter having an input coupled to the input node, an adaptive gain control having an input coupled to an output of the directional anti-aliasing filter, a summer having a first input coupled to an output of the adaptive gain control, a second input coupled to the input node, and an output coupled to the output node, a texture detector for providing a texture adjust signal to the directional anti-aliasing filter and a texture adaptive gain signal to the adaptive gain control, an edge detector for providing an edge direction signal to the directional anti-aliasing filter, and a corner detector for providing a corner adaptive gain signal to the adaptive gain control.

    摘要翻译: 定向抗混叠滤波器电路包括输入节点和输出节点,具有耦合到输入节点的输入的定向抗混叠滤波器,具有耦合到定向抗混叠滤波器的输出的输入的自适应增益控制, 具有耦合到自适应增益控制的输出的第一输入,耦合到输入节点的第二输入和耦合到输出节点的输出的加法器,纹理检测器,用于向定向抗混叠滤波器提供纹理调整信号 以及到自适应增益控制的纹理自适应增益信号,用于向定向抗混叠滤波器提供边缘方向信号的边缘检测器,以及用于向自适应增益控制提供角自适应增益信号的角检测器。

    METHOD AND APPARATUS FOR REDUCING REPEATABLE RUNOUT IN STORAGE SYSTEMS
    36.
    发明申请
    METHOD AND APPARATUS FOR REDUCING REPEATABLE RUNOUT IN STORAGE SYSTEMS 有权
    用于减少存储系统中可重复运行的方法和装置

    公开(公告)号:US20120147495A1

    公开(公告)日:2012-06-14

    申请号:US13400386

    申请日:2012-02-20

    IPC分类号: G11B5/596 G11B7/09

    CPC分类号: G11B5/59627

    摘要: A storage system includes a first buffer configured to store a first repeatable runout profile (RRP) for a sector of a rotating storage medium. A second buffer is configured to store a second RRP for the sector. A controller: controls a servo of the rotating storage medium based on the first RRP during a first revolution of the rotating storage medium; and learns the second RRP (i) while operating in a track-following mode, and (ii) during the first revolution. The controller ceases learning of the second RRP when one of (i) the controller is operating in a seek mode and (ii) the rotating storage medium is in an off-track state. Subsequent to the first revolution of the rotating storage medium and based on whether the learning of the second RRP was stopped during the first revolution, the controller replaces the first RRP with the second RRP in the first buffer.

    摘要翻译: 存储系统包括被配置为存储用于旋转存储介质的扇区的第一可重复跳动分布(RRP)的第一缓冲器。 第二缓冲器被配置为存储扇区的第二RRP。 控制器:在旋转存储介质的第一次旋转期间,基于第一RRP控制旋转存储介质的伺服; 并且在跟踪跟踪模式下操作时学习第二RRP(i),以及(ii)在第一次旋转期间。 当(i)控制器中的一个操作在寻道模式时,以及(ii)旋转存储介质处于偏离轨迹状态时,控制器停止对第二RRP的学习。 在旋转存储介质的第一次旋转之后,基于在第一次旋转期间是否停止第二RRP的学习,控制器用第一缓冲器中的第二RRP代替第一RRP。

    Method and apparatus for scan conversion and interpolation of ultrasonic linear array steering imaging
    37.
    发明授权
    Method and apparatus for scan conversion and interpolation of ultrasonic linear array steering imaging 有权
    超声波线性阵列转向成像的扫描转换和插值的方法和装置

    公开(公告)号:US08187192B2

    公开(公告)日:2012-05-29

    申请号:US12271740

    申请日:2008-11-14

    IPC分类号: A61B8/00

    摘要: A method and apparatus for scan conversion and interpolation of linear array steering imaging in an ultrasonic system are disclosed. The method computes the points that are most related to the point to be interpolated in the principal direction of the point spread function and performs interpolation in the principal direction of the point spread function according to the steering angle of the scan lines so as to obtain a more accurate interpolation result.

    摘要翻译: 公开了一种用于超声波系统中的线阵列转向成像的扫描转换和插值的方法和装置。 该方法计算与点扩散函数的主方向上要插值的点最相关的点,并根据扫描线的转向角在点扩散函数的主方向上进行插值,以获得 更准确的插值结果。

    Method and apparatus for reducing repeatable runout in storage systems
    38.
    发明授权
    Method and apparatus for reducing repeatable runout in storage systems 有权
    减少存储系统中可重复跳动的方法和装置

    公开(公告)号:US08120871B1

    公开(公告)日:2012-02-21

    申请号:US12392872

    申请日:2009-02-25

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59627

    摘要: A method and apparatus is described for reducing RRO in storage systems. A disc may be partitioned into a number of equally spaced sectors. An RRO profile may be individually obtained for each sector, a runout control algorithm may be applied to each sector to generate an RROC waveform for the sector to suppress the RRO, and sector RROC waveforms may be assembled into an RROC waveform for a whole revolution and saved in a memory buffer for feed-forward control. The RROC is performed in the time domain, and it may be adapted for each sector to reject the RRO disturbance.

    摘要翻译: 描述了用于减少存储系统中的RRO的方法和装置。 盘可以被划分成多个相等间隔的扇区。 可以针对每个扇区单独地获得RRO简档,可以将跳动控制算法应用于每个扇区以产生扇区的RROC波形以抑制RRO,并且将扇区RROC波形组装成RROC波形进行整个转换, 保存在内存缓冲区中用于前馈控制。 RROC在时域中执行,并且可以适用于每个扇区以拒绝RRO干扰。