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13 条记录 (耗时 0.027 秒)

    Method and system for estimating noise level
    1.
    发明授权
    Method and system for estimating noise level 有权
    估计噪音水平的方法和系统

    公开(公告)号：US08761540B2

    公开(公告)日：2014-06-24

    申请号：US13160111

    申请日：2011-06-14

    申请人： Zhi Yang ,  Alexander Zamyatin ,  Satoru Ohishi ,  Anusha Muthu-Natarajan

    发明人： Zhi Yang ,  Alexander Zamyatin ,  Satoru Ohishi ,  Anusha Muthu-Natarajan

    IPC分类号： G06K9/40

    CPC分类号： G06T11/008

    摘要： Noise assessment is important to image quality evaluation as well as image processing. For example, the noise level estimation is used as criteria for terminating an iterative noise reduction process. To determine a meaningful noise level, the pixels in featureless regions are separated from the rest of the image. A new concept of pseudo-standard deviation (PSD) is introduced to automatically determine simple and reliable noise level estimates. Furthermore, a histogram of PSD is constructed with fine bins to calculate the moving average of the histogram. The first peak in filtered histogram gives the most representative noise measure as a desired approximation of true standard deviation.

    摘要翻译： 噪声评估对图像质量评估和图像处理很重要。 例如，噪声水平估计被用作终止迭代降噪过程的标准。 为了确定有意义的噪声电平，无特征区域中的像素与图像的其余部分分离。 引入了伪标准偏差（PSD）的新概念，以自动确定简单可靠的噪声电平估计。 此外，PSD的直方图由精细仓组成，以计算直方图的移动平均值。 滤波直方图中的第一个峰值给出最具代表性的噪声测量值作为真正标准偏差的期望近似值。

    Artificial Intelligence Enabled Neuroprosthetic Hand
    3.
    发明申请
    Artificial Intelligence Enabled Neuroprosthetic Hand 有权

    公开(公告)号：US20230086004A1

    公开(公告)日：2023-03-23

    申请号：US17948175

    申请日：2022-09-19

    申请人： Zhi Yang ,  Anh Tuan Nguyen ,  Diu Khue Luu

    发明人： Zhi Yang ,  Anh Tuan Nguyen ,  Diu Khue Luu

    IPC分类号： A61F2/72 ,  G05B13/02 ,  A61F2/58

    摘要： A prosthetic limb in amputation rehabilitation, having a forearm and a hand with four fingers and a thumb, with the wrist and the fingers & thumb thereof being fully independently controlled by nerve signals originating in the amputee's brain and not being controlled by the actions of nearby muscles in the amputee's upper arm or shoulder. Control of the prosthesis is achieved by a fully contained electronic unit in the forearm of the prosthesis that receives neural signals from the brain, converts the analog neural signals to digital signals that are fed into an artificial intelligence engine circuit that utilizes a library of algorithms to learn from the brain what the signals are that will produce a desired hand and finger movement, then convert its computed digital output to analog electrical signals that are fed to the prosthetic hand and finger to produce actual motion as instructed by the brain.

    Optical Lens Component
    4.
    发明申请
    Optical Lens Component 有权
    光学透镜组件

    公开(公告)号：US20100079875A1

    公开(公告)日：2010-04-01

    申请号：US12496602

    申请日：2009-07-01

    申请人： Zhi Yang

    发明人： Zhi Yang

    IPC分类号： G02B13/18 ,  G06F3/01

    CPC分类号： G02B13/0035 ,  G02B9/12

    摘要： An optical lens component comprises a fixed diaphragm, a lens group and a filter. The lens group comprises a first, a second and a third lens which is coaxial and arranged successively from object to image. The fixed diaphragm is located on the front of the first lens and the filter is located on the back of the third lens. The first lens comprises a first surface and a second surface; the second lens comprises a third surface and a fourth surface; and the third lens comprises a fifth surface and a sixth surface. The above six surfaces are all aspheric surfaces.

    摘要翻译： 光学透镜部件包括固定光圈，透镜组和滤光片。 透镜组包括从物体到图像连续地同轴并布置的第一，第二和第三透镜。 固定光圈位于第一透镜的前部，滤光片位于第三透镜的背面。 第一透镜包括第一表面和第二表面; 第二透镜包括第三表面和第四表面; 并且第三透镜包括第五表面和第六表面。 上述六个表面都是非球面。

    SYSTEMS AND METHODS FOR IMAGE RESOLUTION ENHANCEMENT
    5.
    发明申请
    SYSTEMS AND METHODS FOR IMAGE RESOLUTION ENHANCEMENT 审中-公开
    用于图像分辨率增强的系统和方法

    公开(公告)号：US20070083114A1

    公开(公告)日：2007-04-12

    申请号：US11467416

    申请日：2006-08-25

    申请人： Zhi Yang ,  Martin Fox ,  David Raunig ,  Mostafa Analoui ,  Theresa Tuthill

    发明人： Zhi Yang ,  Martin Fox ,  David Raunig ,  Mostafa Analoui ,  Theresa Tuthill

    IPC分类号： A61B8/00

    CPC分类号： A61B8/00 ,  G06T3/4053 ,  G06T5/50 ,  G06T2207/10136 ,  G06T2207/20221 ,  G06T2207/30004

    摘要： A system for providing enhanced digital images includes an image receiving device for accepting at least one digital image and obtaining digital information therefrom; a computer program product comprising machine readable instructions stored on machine readable media, the instructions for providing enhanced digital images by performing upon the at least one digital image at least one of: a minimum directional derivative search, a multi-channel median boosted anisotropic diffusion, an non-homogeneous anisotropic diffusion technique and a pixel compounding technique.

    摘要翻译： 一种用于提供增强数字图像的系统，包括用于接收至少一个数字图像并从其获取数字信息的图像接收装置; 包括存储在机器可读介质上的机器可读指令的计算机程序产品，所述指令用于通过对所述至少一个数字图像执行以下中的至少一个来提供增强的数字图像：最小方向导数搜索，多通道中值提升各向异性扩散， 非均匀各向异性扩散技术和像素复合技术。

    Optical lens component
    9.
    发明授权
    Optical lens component 有权
    光学透镜组件

    公开(公告)号：US07974013B2

    公开(公告)日：2011-07-05

    申请号：US12496602

    申请日：2009-07-01

    申请人： Zhi Yang

    发明人： Zhi Yang

    IPC分类号： G02B13/18

    CPC分类号： G02B13/0035 ,  G02B9/12

    摘要： An optical lens component comprises a fixed diaphragm, a lens group and a filter. The lens group comprises a first, a second and a third lens which is coaxial and arranged successively from object to image. The fixed diaphragm is located on the front of the first lens and the filter is located on the back of the third lens. The first lens comprises a first surface and a second surface; the second lens comprises a third surface and a fourth surface; and the third lens comprises a fifth surface and a sixth surface. The above six surfaces are all aspheric surfaces.

    摘要翻译： 光学透镜部件包括固定光圈，透镜组和滤光片。 透镜组包括从物体到图像连续地同轴并布置的第一，第二和第三透镜。 固定光圈位于第一透镜的前部，滤光片位于第三透镜的背面。 第一透镜包括第一表面和第二表面; 第二透镜包括第三表面和第四表面; 并且第三透镜包括第五表面和第六表面。 上述六个表面都是非球面。