System and Method for Measuring and Fitting Spatio-Temporal Vision
    9.
    发明申请
    System and Method for Measuring and Fitting Spatio-Temporal Vision 有权
    测量和拟合时空视觉的系统和方法

    公开(公告)号:US20100057166A1

    公开(公告)日:2010-03-04

    申请号:US12548275

    申请日:2009-08-26

    IPC分类号: A61F9/08 A61N1/36

    CPC分类号: A61N1/36046 A61N1/37247

    摘要: This system gives the experimenter great flexibility to present spatio-temporal stimulation patterns to a subject. A video configuration file (VCF) editor allows the experimenter to determine the electrical stimulation parameters for each electrode. A Pattern Stimulation software program allows direct stimulation of chosen patterns of electrodes, scaled by the subject's VCF, through a Graphical User Interface. The subject then responds by drawing the outline of the phosphene he or she perceives on a touchscreen. The Pattern Stimulation program saves all of the trial parameters and the parameters of an ellipse fit to their drawing, as well as a raw data file containing the input to the touchscreen is saved. After the experiment, offline image analysis can be performed to obtain a detailed quantitative description of the subject's percepts. Image descriptors can assigned to the touchscreen data; these image descriptors can be used to make formalized comparisons between various experimental conditions. Various types of image descriptors can be used, including simple ellipse fitting, projections of the 2-D drawings onto one-dimensional axes, calculations of Hu moments, PCA, and ICA.

    摘要翻译: 该系统给予实验者极大的灵活性,以向受试者呈现时空刺激模式。 视频配置文件(VCF)编辑器允许实验者确定每个电极的电刺激参数。 图案刺激软件程序允许通过图形用户界面直接刺激由对象的VCF缩放的所选择的电极图案。 然后,该主题通过绘制他或她在触摸屏上感知的磷光体的轮廓来进行响应。 模式刺激程序将所有试验参数和椭圆参数保存到其图形中,并保存包含触摸屏输入的原始数据文件。 实验后,可以进行离线图像分析,以获得对主体感知的详细定量描述。 图像描述符可以分配给触摸屏数据; 这些图像描述符可用于在各种实验条件之间进行正式比较。 可以使用各种图像描述符,包括简单的椭圆拟合,将二维图纸投影到一维轴上,计算Hu矩,PCA和ICA。