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    • 1. 发明申请
    • Method for correcting distortions in multi-focus image stacks
    • 用于校正多焦点图像堆叠中的失真的方法
    • US20050100245A1
    • 2005-05-12
    • US10985687
    • 2004-11-10
    • Jin ChenSean MoranGregory Davidson
    • Jin ChenSean MoranGregory Davidson
    • G02B7/34G02B21/24G06T3/00G06T5/00G06T5/50G06K9/36G06K9/40
    • G02B7/34G02B21/241G06T3/0006G06T5/006G06T5/50
    • A method for correcting distortions in multi-focus image stacks comprising the steps: acquiring a plurality of N colour images with an optical system; wherein each color image encompasses a plurality of pixels; converting each of two successive colour images of the N images into monochrome images; scaling each of the monochrome images to a conveniently M by M image; calculating a geometric transformation and a radiometric transformation of the two successive images, wherein the geometric transformation and the radiometric transformation is determined by a set of coefficients, which are determined by least square matching, and using the determined set of coefficients from each of two successive images, to correct each image sequentially and thereby constructing the multi-focus image by applying the determined parameter set to each of the successive images.
    • 一种用于校正多焦点图像堆叠中的失真的方法,包括以下步骤:用光学系统获取多个N个彩色图像; 其中每个彩色图像包含多个像素; 将N个图像的两个连续彩色图像中的每一个转换为单色图像; 将每个单色图像缩放到方便的M乘M图像; 计算两个连续图像的几何变换和辐射度变换,其中几何变换和辐射变换由通过最小二乘匹配确定的一组系数确定,并且使用从两个连续的每一个中确定的系数集合 图像,以顺序地校正每个图像,从而通过将确定的参数集应用于每个连续图像来构建多焦点图像。
    • 2. 发明授权
    • Method for correcting distortions in multi-focus image stacks
    • 用于校正多焦点图像堆叠中的失真的方法
    • US07349584B2
    • 2008-03-25
    • US10985687
    • 2004-11-10
    • Jin ChenSean MoranGregory P. Davidson
    • Jin ChenSean MoranGregory P. Davidson
    • G06K9/32
    • G02B7/34G02B21/241G06T3/0006G06T5/006G06T5/50
    • A method for correcting distortions in multi-focus image stacks comprising the steps: acquiring a plurality of N colour images with an optical system; wherein each color image encompasses a plurality of pixels; converting each of two successive colour images of the N images into monochrome images; scaling each of the monochrome images to a conveniently M by M image; calculating a geometric transformation and a radiometric transformation of the two successive images, wherein the geometric transformation and the radiometric transformation is determined by a set of coefficients, which are determined by least square matching, and using the determined set of coefficients from each of two successive images, to correct each image sequentially and thereby constructing the multi-focus image by applying the determined parameter set to each of the successive images.
    • 一种用于校正多焦点图像堆叠中的失真的方法,包括以下步骤:用光学系统获取多个N个彩色图像; 其中每个彩色图像包含多个像素; 将N个图像的两个连续彩色图像中的每一个转换为单色图像; 将每个单色图像缩放到方便的M乘M图像; 计算两个连续图像的几何变换和辐射度变换,其中几何变换和辐射变换由通过最小二乘匹配确定的一组系数确定,并且使用从两个连续的每一个中确定的系数集合 图像,以顺序地校正每个图像,从而通过将确定的参数集应用于每个连续图像来构建多焦点图像。
    • 3. 发明申请
    • Magnetic Field Adjusting Device
    • 磁场调整装置
    • US20070257758A1
    • 2007-11-08
    • US10591639
    • 2005-03-07
    • Jin ChenCheng NiTing Xue
    • Jin ChenCheng NiTing Xue
    • H01F7/00G01V3/00
    • G01R33/3873
    • The present invention relates to a magnetic field adjusting device; such as may be used in MRI apparatus. The device can overcome the magnetic force to enable shimming plugs to move in a controlled continuous manner, thereby achieving continuous adjusting and accurate positioning. The magnetic field adjusting device comprises; a pair of opposing pole plates (3, 31), respectively mounted on magnetic field generating sources, forming a magnetic field space; a plurality of shimming plugs (42) movably mounted at the periphery of said pole plates (3, 31), each shimming plug (42) mounted in a radially oriented retaining groove (45), so as to be movable in the direction of the retaining groove. Additionally, or alternatively, the circumferences of the magnetic field generating sources (5, 51) are arranged with adjusting bars (71, 81) which can move perpendicular to the pole plates. As an advantage of the present invention, the magnetic field can be shimmed conveniently quickly, and accurately to improve the imaging quality.
    • 磁场调整装置技术领域本发明涉及磁场调整装置, 例如可用于MRI装置。 该装置可以克服磁力,以使塞子以受控的连续方式移动,从而实现连续的调节和准确的定位。 磁场调节装置包括: 分别安装在磁场产生源上的一对相对极板(3,31),形成磁场空间; 多个可移动地安装在所述极板(3,31)的周边的垫片塞(42),每个垫片塞(42)安装在径向取向的保持槽(45)中,以便可沿着 保持槽。 另外或者替代地,磁场产生源(5,51)的周向布置有可以垂直于极板移动的调节杆(71,81)。 作为本发明的优点,可以方便地快速,准确地对磁场进行补片,以提高成像质量。
    • 8. 发明申请
    • Accommodative intraocular lens
    • 适应性眼内镜
    • US20050137703A1
    • 2005-06-23
    • US11004601
    • 2004-12-03
    • Jin Chen
    • Jin Chen
    • A61F2/16
    • A61F2/1629A61F2/1635A61F2002/1683
    • An accommodative intraocular lens for implantation in an eye of a living subject having a lens capsule and a lens substance contained in the lens capsule. In one embodiment, the accommodative intraocular lens includes a lens structure having a geometry and a focal power associated with the geometry. The lens geometry is changeable in response to a force applied to the lens structure. The accommodative intraocular lens further includes a frame for engaging the lens structure with the lens capsule of the eye of the living subject such that contraction of the lens capsule pushes the lens structure contracting inwardly and relaxation of the lens capsule pulls the lens structure extending outwardly so as to change the geometry of the lens structure to adjust the focal power of the lens structure accordingly.
    • 一种用于植入在具有镜片胶囊和镜片物质的活体的眼睛中的调节性眼内透镜。 在一个实施例中,调节性眼内透镜包括具有与几何形状相关联的几何形状和焦点力的透镜结构。 透镜几何形状可以响应于施加到透镜结构的力而变化。 调节性眼内透镜还包括用于将透镜结构与活体的眼睛的晶状体囊接合的框架,使得晶状体囊的收缩推动透镜结构向内收缩,并且透镜囊的松弛拉动向外延伸的透镜结构 以改变透镜结构的几何形状,从而相应地调节透镜结构的聚焦能力。
    • 10. 发明申请
    • Shimmed magnetic resonance imaging apparatus and shimming method therefor
    • Shimmed磁共振成像装置及其调整方法
    • US20060244451A1
    • 2006-11-02
    • US11394629
    • 2006-03-31
    • Cheng NiHui CaoJin ChenZhong Ren
    • Cheng NiHui CaoJin ChenZhong Ren
    • G01V3/00
    • G01R33/3873G01R33/3875
    • In a shimming method for an irregular object to be examined by magnetic resonant equipment magnetic field parameters are measured at measurement points located on the surface of an irregular object to be examined. Based on the measured magnetic field parameters, the positions and number of shims for adjusting magnetic field homogeneity are calculated when a passive shimming is to be performed, or the current value in a shimming coil are calculated when an active shimming is to be performed, or at the same time both the positions and number of shims and current value in the shimming coil are calculated when active shimming and passive shimming are to be performed at the same time. Shimming is then performed according to the calculated results. These above steps are repeated until achieving required magnetic field homogeneity. Since the homogeneous region is designed to have an irregular shape, it can provide a better coverage of the irregular object to be examined, and at the same time it reduces the shimming constraints to the unnecessary regions outside the irregular object to be examined, therefore avoiding shimming in those unnecessary regions.
    • 在通过磁共振设备检查的不规则物体的匀场方法中,在位于待检查的不规则物体的表面上的测量点处测量磁场参数。 基于测量的磁场参数,当要执行被动匀场调整时计算用于调整磁场均匀性的垫片的位置和数量,或者当要执行活动匀场时计算匀场线圈中的当前值,或 同时,当同时进行有效匀场和被动匀场时,同时计算匀场线圈的位置和数量以及匀场线圈中的当前值。 然后根据计算结果执行匀场。 重复上述步骤,直到达到所需的磁场均匀性。 由于均匀区域被设计成具有不规则形状,所以可以提供对待检查的不规则物体的更好的覆盖,并且同时将匀场限制减小到待检查的不规则物体之外的不需要的区域,因此避免 在这些不必要的地区。