利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

164 条记录 (耗时 0.037 秒)

    Digital object recognition audio-assistant for the visually impaired
    3.
    发明申请
    Digital object recognition audio-assistant for the visually impaired 审中-公开
    视觉障碍者的数字对象识别音频助理

    公开(公告)号：US20050208457A1

    公开(公告)日：2005-09-22

    申请号：US11030678

    申请日：2005-01-05

    申请人： Wolfgang Fink ,  Mark Humayun

    发明人： Wolfgang Fink ,  Mark Humayun

    IPC分类号： G09B21/00

    CPC分类号： G09B21/00

    摘要： A camera-based object detection system for a severely visually impaired or blind person consisting a digital camera mounted on the person's eyeglass or head that takes images on demand. Near-real time image processing algorithms decipher certain attributes of the captured image by processing it for edge pattern detection within a central region of the image. The results are classified by artificial neural networks trained on a list of known objects, in a look up table, or by a threshold. Once the pattern is classified a descriptive sentence is constructed of the object and its certain attributes and a computer-based voice synthesizer is used to verbally announce the descriptive sentence. The invention is used to determine the size of an object, or its distance from another object, and can be used in conjunction with an IR-sensitive camera to provide “sight” in poor visibility conditions, or at night.

    摘要翻译： 一种用于严重视觉障碍或盲人的摄像机物体检测系统，包括安装在人眼镜或头上的数字照相机，其根据需要拍摄图像。 近实时图像处理算法通过对图像的中心区域中的边缘图案检测进行处理来解码捕获图像的某些属性。 结果通过在已知对象的列表，查找表中或通过阈值训练的人造神经网络进行分类。 一旦模式被分类，描述性句子由对象及其某些属性构成，并且使用基于计算机的语音合成器来口头公布描述性句子。 本发明用于确定物体的尺寸或其与另一物体的距离，并且可以与IR敏感相机结合使用，以在较差的可视性条件或夜间提供“视线”。

    Method and system for training a visual prosthesis
    4.
    发明授权
    Method and system for training a visual prosthesis 有权
    用于训练视觉假体的方法和系统

    公开(公告)号：US07321796B2

    公开(公告)日：2008-01-22

    申请号：US10837163

    申请日：2004-04-30

    申请人： Wolfgang Fink ,  Mark Humayun

    发明人： Wolfgang Fink ,  Mark Humayun

    IPC分类号： A61N1/36

    CPC分类号： A61N1/36046 ,  A61F9/08 ,  A61N1/08

    摘要： A method for training a visual prosthesis includes presenting a non-visual reference stimulus corresponding to a reference image to a visual prosthesis patient. The visual prosthesis including a plurality of electrodes. Training data sets are generated by presenting a series of stimulation patterns to the patient through the visual prosthesis. Each stimulation pattern in the series, after the first, is determined at least in part on a previous subjective patient selection of a preferred stimulation pattern among stimulation patterns previously presented in the series and a fitness function optimization algorithm. The presented stimulation patterns and the selections of the patient are stored and presented to a neural network off-line to determine a vision solution.

    摘要翻译： 用于训练视觉假体的方法包括将对应于参考图像的非视觉参考刺激呈现给视觉假体患者。 视觉假体包括多个电极。 训练数据集是通过将视觉假体呈现给患者的一系列刺激模式而产生的。 系列中的每个刺激模式在第一次之后至少部分地基于先前在该系列中呈现的刺激模式中的优选刺激模式的先前主观患者选择和适应度函数优化算法来确定。 呈现的刺激模式和患者的选择被存储并离线地呈现给神经网络以确定视觉解决方案。

    Flexible circuit electrode array
    5.
    发明授权
    Flexible circuit electrode array 有权

    公开(公告)号：US10667404B2

    公开(公告)日：2020-05-26

    申请号：US11926046

    申请日：2007-10-28

    申请人： Robert Greenberg ,  Neil Talbot ,  Jordan Neysmith ,  Dilek Guven ,  James Little ,  Brian Mech ,  Mark Humayun

    发明人： Robert Greenberg ,  Neil Talbot ,  Jordan Neysmith ,  Dilek Guven ,  James Little ,  Brian Mech ,  Mark Humayun

    IPC分类号： A61N1/05 ,  H05K3/00 ,  A61N1/36

    摘要： Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, or cortical stimulation many purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced. With a thermoplastic polymer it may be further advantageous to repeatedly heat the flexible circuit in multiple molds, each with a decreasing radius. Further, it is advantageous to add material along the edges. It is further advantageous to provide a fold or twist in the flexible circuit array. Additional material may be added inside and outside the fold to promote a good seal with tissue.