Method and apparatus for dynamic correction of microscopic image signals
    1.
    发明授权
    Method and apparatus for dynamic correction of microscopic image signals 失效
    用于微观图像信号的动态校正的方法和装置

    公开(公告)号:US5361140A

    公开(公告)日:1994-11-01

    申请号:US838065

    申请日:1992-02-18

    CPC分类号: H04N1/401

    摘要: A circuit is provided for correcting an image signal received from a camera wherein the camera includes a plurality of charge coupled devices, each for providing a light signal indicative of the intensity of light incident thereon and wherein the plurality of light signals from the plurality of charge coupled devices are indicative of an image received by the camera. The correction circuit includes a gain memory for storing a plurality of gain correction factors wherein each gain correction factor is associated with a respective charge coupled device of the camera. The correction circuit further includes an offset memory for storing a plurality of offset correction factors wherein each offset correction factor is associated with a respective one of the plurality of charged coupled devices. The gain memory is responsive to a control circuit for multiplying the plurality of electric signals by the appropriate gain correction factor. Similarly, the offset memory is responsive to a control circuit for adding the appropriate one of the plurality of offset correction factors with the signal from its respective charge coupled device. A light detection circuit is also provided for normalizing the corrected plurality of signal to make the resulting measurement a measurement of the percentage of transmission of the focused slide specimen.

    摘要翻译: 提供一种用于校正从相机接收的图像信号的电路,其中所述照相机包括多个电荷耦合器件,每个用于提供指示入射到其上的光的强度的光信号,并且其中来自多个电荷的多个光信号 耦合的装置指示由相机接收的图像。 校正电路包括用于存储多个增益校正因子的增益存储器,其中每个增益校正因子与相机的相应电荷耦合器件相关联。 校正电路还包括用于存储多个偏移校正因子的偏移存储器,其中每个偏移校正因子与多个充电耦合器件中的相应一个相关联。 增益存储器响应于用于将多个电信号乘以适当增益校正因子的控制电路。 类似地,偏移存储器响应于控制电路,用于将来自其相应的电荷耦合器件的信号添加到多个偏移校正因子中的适当一个。 还提供了一种光检测电路,用于对校正的多个信号进行标准化,以使所得到的测量结果是测量聚焦的载玻片样本的透射百分比。

    Automatic focusing of biomedical specimens apparatus
    2.
    发明授权
    Automatic focusing of biomedical specimens apparatus 失效
    生物医学标本设备自动对焦

    公开(公告)号:US5647025A

    公开(公告)日:1997-07-08

    申请号:US309405

    申请日:1994-09-20

    IPC分类号: G02B7/28 G02B21/00 G06T5/20

    CPC分类号: G02B7/28

    摘要: A method for automatically focusing on a slide includes the steps of locating a coverslip, acquiring images from predetermined focal depths in the slide, and starting at an initial focal depth proximate the surface of the coverslip. A set of predetermined characteristics within each of the images are measured to generate at least one image measurement for each of the plurality of images. A focus measure is computed for each of the images, where each focus measure is a function of at least one image measurement. A best focus location is determined relative to a focal depth where an acquired image has a highest focus measure.

    摘要翻译: 用于自动聚焦在幻灯片上的方法包括以下步骤:定位盖玻片,从幻灯片中的预定焦点深度获取图像,并从靠近盖玻片表面的初始焦点深度开始。 测量每个图像内的一组预定特征以对于多个图像中的每一个生成至少一个图像测量。 为每个图像计算焦点测量,其中每个焦点测量是至少一个图像测量的函数。 相对于获取的图像具有最高焦点测量的焦点深度来确定最佳聚焦位置。

    Optical tomography system with high-speed scanner
    3.
    发明授权
    Optical tomography system with high-speed scanner 有权
    光学断层扫描系统与高速扫描仪

    公开(公告)号:US08254023B2

    公开(公告)日:2012-08-28

    申请号:US12391096

    申请日:2009-02-23

    IPC分类号: G02B23/14 G02B21/00

    摘要: An object of interest is illuminated within the field of view of a microscope objective lens located to receive light passing through the object of interest. Light transmitted through the microscope objective lens impinges upon a variable power element. The variable power element is driven with respect to the microscope objective lens to scan through multiple focal planes in the object of interest. Light transmitted from the variable power element is sensed by a sensing element or array.

    摘要翻译: 感兴趣的物体在位于接收通过感兴趣物体的光的显微镜物镜的视场内被照亮。 透过显微镜物镜的光照射在可变功率元件上。 可变功率元件相对于显微镜物镜被驱动以扫描感兴趣对象中的多个焦平面。 从可变功率元件发射的光由感测元件或阵列感测。

    Pattern noise correction for pseudo projections
    4.
    发明授权
    Pattern noise correction for pseudo projections 有权
    伪投影的图案噪声校正

    公开(公告)号:US08090183B2

    公开(公告)日:2012-01-03

    申请号:US12403231

    申请日:2009-03-12

    IPC分类号: G06K9/18

    摘要: Correcting pattern noise projection images includes acquiring a set of projection images with an optical tomography system including a processor, where each of the set of projection images is acquired at a different angle of view. A threshold is applied to each projection image produce a set of threshold images. Each threshold image may optionally be dilated to produce a set of dilated images that are summed to form an ensemble image. Each of the dilated images is processed to produce a set of binary images. The set of binary images are summed to form an ensemble mask. The ensemble image is divided by the ensemble mask to yield a background pattern noise image. Each projection image is multiplied by a scaling factor and divided by the background pattern noise to produce a quotient image that is filtered to produce a noise corrected projection image.

    摘要翻译: 校正图案噪声投影图像包括使用包括处理器的光学层析成像系统获取一组投影图像,其中以不同的视角获取投影图像集合中的每一个。 对每个投影图像应用阈值产生一组阈值图像。 每个阈值图像可以可选地被扩展以产生一组被累加以形成整体图像的扩张图像。 每个扩张的图像被处理以产生一组二进制图像。 将二进制图像的集合相加以形成集合掩码。 整体图像由合成掩模划分以产生背景图案噪声图像。 将每个投影图像乘以缩放因子并除以背景图案噪声,以产生被滤波以产生噪声校正投影图像的商图像。

    Depth of field extension for optical tomography
    5.
    发明授权
    Depth of field extension for optical tomography 有权
    光学层析成像的景深延伸

    公开(公告)号:US07787112B2

    公开(公告)日:2010-08-31

    申请号:US11876658

    申请日:2007-10-22

    IPC分类号: G01J1/00

    摘要: An optical projection tomography system is illuminated with a light source. An object-containing tube, a portion of which is located within the region illuminated by the light source, contains an object of interest that has a feature of interest. A detector is located to receive emerging radiation from the object of interest. A lens, including optical field extension elements, is located in the optical path between the object region and the detector, such that light rays from multiple object planes in the object-containing tube simultaneously focus on the detector. The object-containing tube moves relatively to the detector and the lens operate to provide multiple views of the object region for producing an image of the feature of interest at each view.

    摘要翻译: 用光源照射光学投影断层摄影系统。 其中一部分位于由光源照射的区域内的含有物体的管包含具有感兴趣特征的感兴趣对象。 探测器被设置为接收来自感兴趣对象的新兴辐射。 包括光场延伸元件的透镜位于物体区域和检测器之间的光路中,使得来自物体的管中的多个物平面的光线同时聚焦在检测器上。 所述含物体的管相对于所述检测器移动并且所述透镜操作以提供所述物体区域的多个视图,以在每个视图处产生感兴趣特征的图像。

    Cantilevered coaxial flow injector apparatus and method for sorting particles
    6.
    发明授权
    Cantilevered coaxial flow injector apparatus and method for sorting particles 有权
    悬臂同轴流动注射器装置及粒子分选方法

    公开(公告)号:US07569789B2

    公开(公告)日:2009-08-04

    申请号:US11377032

    申请日:2006-03-16

    IPC分类号: B07C5/00

    摘要: An apparatus and method for sorting particles in a laminar flow microfluidic channel includes a cantilevered coaxial flow injector in a microfluidic device, the cantilevered coaxial flow injector including an elongated cantilever element integrated into the microfluidic device. A coaxial channel runs through the elongated cantilever element, where coaxial channel is sized to pass particles of a predetermined size. An actuator is coupled to the elongated cantilever element, for actuating said elongated cantilever element.

    摘要翻译: 用于在层流微流体通道中分选颗粒的装置和方法包括微流体装置中的悬臂同轴流注射器,所述悬臂同轴流动注射器包括集成到微流体装置中的细长悬臂元件。 同轴通道穿过细长的悬臂元件,其中同轴通道的尺寸适于通过预定尺寸的颗粒。 致动器联接到细长悬臂元件,用于致动所述细长悬臂元件。

    Cytological slide scoring apparatus
    8.
    发明授权
    Cytological slide scoring apparatus 失效
    细胞学评分仪

    公开(公告)号:US5933519A

    公开(公告)日:1999-08-03

    申请号:US867017

    申请日:1997-06-03

    摘要: The invention detects areas of interest at low magnification, locating possible abnormal cells or other cells of interest using image processing and statistical pattern recognition techniques. Next, at high magnification, the areas identified at low magnification are re-examined. The information from the low magnification and high magnification scans is collated and a determination is made about the slide--whether it is normal, abnormal, contains endocervical component, and so forth. The invention also provides a method and apparatus to train object feature and slide feature classifiers. The invention provides an automated cytology system that can process training slides for use in a feed back classifier development environment. The invention also can classify endocervical groups of cells.

    摘要翻译: 本发明使用图像处理和统计模式识别技术来检测低放大倍数的感兴趣区域,定位可能的异常细胞或感兴趣的其它细胞。 接下来,在高放大倍数下,重新检查在低倍率下识别的区域。 对来自低放大倍数和高倍率扫描的信息进行整理,并确定载玻片是否正常,异常,包含宫颈内部成分等。 本发明还提供了一种训练对象特征和幻灯片特征分类器的方法和装置。 本发明提供了一种自动细胞学系统,其可以处理用于反馈分类器开发环境中的训练幻灯片。 本发明还可以分类宫颈癌细胞群。

    Depth of Field Extension for Optical Tomography
    10.
    发明申请
    Depth of Field Extension for Optical Tomography 有权
    光学层析成像的景深扩展

    公开(公告)号:US20090103792A1

    公开(公告)日:2009-04-23

    申请号:US11876658

    申请日:2007-10-22

    IPC分类号: G06K9/78

    摘要: An optical projection tomography system is illuminated with a light source. An object-containing tube, a portion of which is located within the region illuminated by the light source, contains an object of interest that has a feature of interest. A detector is located to receive emerging radiation from the object of interest. A lens, including optical field extension elements, is located in the optical path between the object region and the detector, such that light rays from multiple object planes in the object-containing tube simultaneously focus on the detector. The object-containing tube moves relatively to the detector and the lens operate to provide multiple views of the object region for producing an image of the feature of interest at each view.

    摘要翻译: 用光源照射光学投影断层摄影系统。 其中一部分位于由光源照射的区域内的含有物体的管包含具有感兴趣特征的感兴趣对象。 探测器被设置为接收来自感兴趣对象的新兴辐射。 包括光场延伸元件的透镜位于物体区域和检测器之间的光路中,使得来自物体的管中的多个物平面的光线同时聚焦在检测器上。 所述含物体的管相对于所述检测器移动并且所述透镜操作以提供所述物体区域的多个视图,以在每个视图处产生感兴趣特征的图像。