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    Fitting of brightness as a function of current amplitude in a visual prosthesis
    1.
    发明授权
    Fitting of brightness as a function of current amplitude in a visual prosthesis 有权
    在视觉假体中将亮度拟合为电流幅度的函数

    公开(公告)号：US08706244B2

    公开(公告)日：2014-04-22

    申请号：US12561025

    申请日：2009-09-16

    申请人： Scott H. Greenwald ,  Matthew J. McMahon ,  Ione Fine

    发明人： Scott H. Greenwald ,  Matthew J. McMahon ,  Ione Fine

    IPC分类号： A61N1/00 ,  A61B13/00

    CPC分类号： A61N1/36046 ,  A61N1/0543

    摘要： To accurately represent a visual scene a visual prosthesis must convey luminance information across a range of brightness levels. To do this, the brightness of phosphenes produced by an individual electrode should scale appropriately with luminance, and the same luminance should produce equivalently bright phosphenes across the entire electrode array. Given that the function relating current to brightness varies across electrodes, it is necessary to develop a fitting procedure that will permit brightness to be equated across an entire array. The current invention describes a method of performing a brightness fitting that normalizes brightness across electrodes. The method determines a set of parameters that are stored in the subjects Video Configuration File—the look-up table that converts the video camera input to stimulation profiles for each electrode. One electrode would be specified as the standard. Brightness rating would be carried out on that electrode so “rating” as a function of current amplitude was known for that electrode.

    摘要翻译： 为了准确地表示视觉场景，视觉假体必须在亮度级别范围内传达亮度信息。 为了做到这一点，单个电极产生的磷光体的亮度应该用亮度适当地调节，并且相同的亮度应该在整个电极阵列上产生等同的亮的磷光体。 假设电流与亮度相关的功能在电极之间变化，则有必要开发一种拟合程序，这将允许整个阵列的亮度相等。 本发明描述了执行使电极之间的亮度标准化的亮度拟合的方法。 该方法确定存储在被摄体视频配置文件（将视频摄像机输入转换为每个电极的刺激曲线）的查找表中存储的一组参数。 一个电极将被指定为标准。 在该电极上将进行亮度等级，因此对于该电极已知作为电流幅度的函数的“额定值”。

    Fitting of Brightness as a Function of Current Amplitude in a Visual Prosthesis
    6.
    发明申请
    Fitting of Brightness as a Function of Current Amplitude in a Visual Prosthesis 有权
    将亮度拟合为视觉假体中当前幅度的函数

    公开(公告)号：US20100241192A1

    公开(公告)日：2010-09-23

    申请号：US12561025

    申请日：2009-09-16

    申请人： Scott H. Greenwald ,  Matthew J. McMahon ,  Ione Fine

    发明人： Scott H. Greenwald ,  Matthew J. McMahon ,  Ione Fine

    IPC分类号： A61F9/08 ,  A61N1/36

    CPC分类号： A61N1/36046 ,  A61N1/0543

    摘要： To accurately represent a visual scene a visual prosthesis must convey luminance information across a range of brightness levels. To do this, the brightness of phosphenes produced by an individual electrode should scale appropriately with luminance, and the same luminance should produce equivalently bright phosphenes across the entire electrode array. Given that the function relating current to brightness varies across electrodes, it is necessary to develop a fitting procedure that will permit brightness to be equated across an entire array.The current invention describes a method of performing a brightness fitting that normalizes brightness across electrodes. The method determines a set of parameters that are stored in the subjects Video Configuration File—the look-up table that converts the video camera input to stimulation profiles for each electrode. One electrode would be specified as the standard.Brightness rating would be carried out on that electrode so “rating” as a function of current amplitude was known for that electrode.

    摘要翻译： 为了准确地表示视觉场景，视觉假体必须在亮度级别范围内传达亮度信息。 为了做到这一点，单个电极产生的磷光体的亮度应该用亮度适当地调节，并且相同的亮度应该在整个电极阵列上产生等同的亮的磷光体。 假设电流与亮度相关的功能在电极之间变化，则有必要开发一种拟合程序，这将允许整个阵列的亮度相等。 本发明描述了执行使电极之间的亮度标准化的亮度拟合的方法。 该方法确定存储在被摄体视频配置文件（将视频摄像机输入转换为每个电极的刺激曲线）的查找表中存储的一组参数。 一个电极将被指定为标准。 在该电极上将进行亮度等级，因此对于该电极已知作为电流幅度的函数的“额定值”。